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When choosing their first performance modification for the Corvette Online Project C700 2015 Stingray Z51, Corvette Online chose the superior airflow and superior performance of K&N

Despite industry leading performance, the 2014, 2015, & 2016 Chevy C7 Corvette Stingray Z51 6.2L LT1 V8  is equipped with a low-tech disposable air filter inside the air box

Corvette Online is a leading digital magazine dedicated to America’s Sports Car, the Chevrolet Corvette. Corvette Online caters to all generations of GM’s flagship performance car with news, car features, and in-depth technical content. When deciding which performance modification to perform first to the Corvette Online Project C700 2015 Chevy Corvette Stingray Z51, Corvette Online sought the superior airflow and superior performance K&N is known for.

Brent Davis of Corvette Online wrote, “To this point, we have been beyond pleased with the performance, drivability, sound, and handling of the Stingray. However, we can never seem to leave well enough alone, and as such we have officially kicked off the path which will hopefully allow us to fulfill the goal of this build, and thus proving worthy of its name...producing 700 HP.”

Despite industry leading performance, the 2014-2016 Corvette is equipped with a low-tech disposable air filter inside the air box. However, K&N high-flow stock replacement air filter E-0665 is designed to inject high-flow technology into the 2014, 2015, & 2016 Chevy Corvette. While Corvette Online was ultimately more interested in running the K&N 2014-2015 Corvette intake system 63-3081, they decided to first see how the standard replacement air filter could improve performance.

K&N high-flow stock replacement air filter number E-0665 is designed to inject high-flow technology into the 2014, 2015, & 2016 Chevy C7 Corvette Stingray Z51 6.2L LT1 V8

Corvette Online gave their 2015 Chevy Z51 Stingray some time to cool down following the dyno passes with a K&N air filter before moving on to the complete K&N air intake system install

After installing the K&N 2014-2016 Chevy Corvette 6.2L V8 replacement air filter, Corvette Online strapped the otherwise stock Stingray to their in-house Dynojet dynamometer. As Brent Davis wrote, “You may just be as pleasantly surprised as we were.” Brent continued, “With that simple and very inexpensive change, our stingray produced 407.7 HP and 384.1 lb-ft of torque. This is an increase over stock of 10.3 horsepower and 6.1 lb-ft of torque to the rear wheels, which is really quite impressive.”

Corvette Online gave their 2015 Z51 Stingray some time to cool down following the dyno passes with a K&N air filter before moving on to the complete K&N air intake system install. Brent Davis wrote in his online article, “The installation was very simple and straight forward. The job only takes a few simple hand tools and the supplied instructions to make it a walk in the park. This procedure is best completed in the comfort of a garage, but if a driveway or parking spot is all you have, fear not; you will be back on the road in no time and reaping the benefits of your new (K&N) air intake system.”

Corvette Online described the K&N air intake install as best completed in a garage, but if a driveway or parking spot is all you have, fear not; you will be back on the road in no time

A K&N stock replacement air filter showed gains of over 10 HP and 6 lb-ft of torque, and the K&N air intake gave an increase of 14.8 HP and 12.1 lb-ft of torque compared to stock

When Corvette Online strapped their 2015 Chevy Corvette Stingray Z51 6.2L V8, with an 8-speed automatic transmission, to their dyno in stock trim the car produced 397.4 HP and 378.0 lb-ft of torque. As mentioned earlier dyno testing with a K&N stock replacement air filter showed gains of over 10 HP and 6 lb-ft of torque. But for Corvette Online it was now time to see if K&N was able to live up to its estimated additional power increase of 12.51 horsepower.

The results of the dyno test with K&N air intake 63-3081 “showed that with the full K&N system in place, our LT1 pushed out 412.2 HP and 390.1 lb-ft of torque. Overall, this modification gave us an increase of 14.8 HP and 12.1 lb-ft of torque compared to our stock base run,” wrote Brent. In his online article he continued, “We are happy that we outperformed the results claimed by K&N, as they said you can expect a gain of 12.51 horsepower.” Brent also wrote, “The dyno graph shown here also depicts an important aspect we like to look at, which is known as the power under the curve. Simply put, this means that while peak numbers are great, there is more to it than that.”

As seen in the dyno graph above the K&N intake flattens the torque curve out at a more usable RPM and stays there longer, while the HP curve moved up and produces HP longer

Looking at the Dynojet dyno chart from Corvette Online, the drop-in K&N replacement air filter increased performance slightly, but almost follows the stock dyno curve contour. However, K&N air intake 63-3081 was able to effectively reshape the power curve a bit. Brent wrote, “The torque curve flattens out at a lower, more usable, RPM and stays there longer, while the horsepower curve moved up in the RPM range yet produces in excess of 375 HP for a much longer period.”

Probably more important than dyno graph numbers and horsepower claims is how a vehicle drives on the road. Brent wrote in the Corvette Online article, “When you are starting out with such a large amount of horsepower, it makes more substantial gains to really notice a difference from the driver’s seat. While the car may not “feel” a whole lot faster, we definitely felt a difference pulling through some of the taller gears. The LT1 no longer sounds starved for air and its throttle response is noticeably improved. We couldn’t be happier with our results and to report positive power numbers with either choice.”

Please use the search by vehicle tool to find all K&N products and air intakes for your Chevy Corvette, or for another vehicle. Use the K&N Dealer Search to find an authorized K&N dealer in almost any part of the world.

K&N Power Kleen Cotton Air Filter Cleaner & Industrial Strength Degreaser is in 12 fl oz, 32 fl oz, 1 gallon, and 5 gallon containers

K&N's customer service department is frequently asked how to use the K&N Cotton Air Filter Cleaner & Industrial Strength Degreaser, known as Power Kleen. Power Kleen K&N Cleaner works to dissolve dirt build up as well as old filter oil, and can be washed away with water. K&N Power Kleen air filter cleaner is so good at cleaning dirt and grime that it is also used as an industrial strength degreaser.

Cleaning your K&N Air Filter is not required if you can still see the wire screen on the entire air filter, regardless of how dirty it may appear; especially if there is no decrease in performance

K&N Air Filter Cleaner is the only cleaner formulated to clean K&N Filtercharger® air filters made with cotton air filter material. Because the use of any other cleaning solution can void the filter's warranty, and quite possibly could damage the cotton media, some people are worried about how to use K&N cleaner and how much cleaner do they need.

K&N recommends checking your filter every 25,000 miles and when the wire screen is no longer visible some place on filter; it is time to clean it with Power Kleen K&N air filter cleaner

Before using K&N cleaner, it should be determined if it's time to clean the air filter. K&N stock replacement air filters can go up to 50,000 miles, depending on driving conditions, before cleaning is necessary. The large cone shaped air filters found on K&N air intake systems have so much surface area that they are able to go up to 100,000 miles under normal highway driving. If your K&N air filter is used in dusty or off-road environments, they will require cleaning more often.

To clean a K&N cotton gauze air filter, start by liberally spraying K&N Air Filter Cleaner onto both sides of the filter and allow the air filter to soak for 10 minutes but don't let the cleaner dry

One common mistake made in K&N air filter maintenance is cleaning it too frequently. A K&N air filter is made with premium materials and designed to be cleaned time and again. So frequently cleaning a K&N air filter isn't necessarily an issue. However, cleaning it too frequently is a misuse of time that could be spent doing something else. K&N recommends that you visually inspect your air filter once every 25,000 miles to determine if it needs to be cleaned.

Cleaning your K&N Air Filter is not required if you can still see the wire screen on the entire air filter, regardless of how dirty it may appear. If you have not experienced a decrease in mileage or engine performance, chances are your K&N air filter is fine and does not yet need to be cleaned. When the screen is no longer visible some place on the air filter, it is time to clean it. You can see in the above pictures of when to clean a K&N air filter.

A 12 fl oz bottle of K&N Power Kleen air filter cleaner and step by step air filter cleaning instructions are included in every K&N Recharger® air filter service kit

Rinse a K&N air filter with cool low-pressure water applied to the clean side out in order to flush the dirt out of the filter and continue to rinse until all traces of cleaner are gone

To clean a K&N cotton gauze air filter, start by liberally spraying K&N Air Filter Cleaner onto both sides of the filter. Allow the air filter to soak for 10 minutes to loosen the dirt, but do not allow K&N cleaner to dry on the air filter. Rinse your air filter with cool low-pressure water applied to the clean side out in order to flush the dirt out of the filter. Continue to rinse the filter until all traces of cleaner are gone. Do not use K&N cleaner on polished or anodized aluminum.

While there is a proper way how to use K&N cleaner, there isn't a cut and dry answer as to how much should be used. Sometimes an extremely dirty air filter will require a second cleaning, and of course a larger air filter will need more Power Kleen K&N cleaner than a small K&N air filter. The same thing applies when using K&N cleaner as an industrial strength degreaser. Large dirty jobs will require more cleaner and possibly multiple cleanings.

K&N Power Kleen Cotton Air Filter Cleaner & Industrial Strength Degreaser is available on knfilters.com or through an authorized dealer in 12 fl oz, 32 fl oz, 1 gallon, and 5 gallon containers. A 12 fl oz bottle of K&N Power Kleen air filter cleaner is included in every K&N Recharger® air filter service kit. K&N air filter cleaning and oiling instructions are included with each Recharger kit, or they can be viewed on the K&N Air Filter Cleaning page at knfilters.com.

Starting in last place for the Production 1000 Lucas Oil Regional Off-Road Racing Series main event would frustrate most racers, but K&N sponsored Cody Rahders held his head high

Driving his Polaris sponsored and K&N filters equipped RZR XP 1000 Cody Rahders finished 2nd place in Round 7 of the Lucas Oil Regional Series and won his second consecutive Production 1000 class title. Cody successfully won, then defended his titles, in both the RZR XP and Production 1000 classes. With this title Cody has earned a fourth title in three years at the Lucas Oil Regionals and seventh since he started racing UTV's in 2007.

By lap six Cody Rahders was in second and began to put pressure on the race leader; but he would complete the race nose to tail with the race winner as they crossed the finish line

Beginning with qualifying K&N's Cody Rahders wasn't taking any chances. Cody ran easy laps and qualified third for the main event. However, Cody missed post qualification tech inspection and was penalized by being moved to last place (16th) for the start of the main. "Brain fade. I was thinking about how I should race going into the main and drove right past tech, the penalty made the decision for me," said Rahders.

Driving his Polaris sponsored RZR XP 1000 Cody Rahders finished 2nd place in Round 7 of the Lucas Oil Regional Series and won his second consecutive Production 1000 class title

Starting in last place for the Production 1000 main event would frustrate most racers, but Cody held his head high. As the Production 1000 pack pushed wide into the first turn; Cody took the low line and passed four cars right off the start. Determined to make his way to the front, he was eighth by the end of lap one. At the end of lap two he was in fourth, and by lap six he was in second and began to pressure the race leader.

As the race wore down Cody made a move for the lead almost making contact in a couple of the turns. Cody decided to wait for the last lap, ride the leader's rear bumper, and hopefully force a mistake. The mistake Cody hoped for never came and he completed the race nose to tail with the race winner as they crossed the finish line.

"The most fun I've had in a long time! Starting last was a relief, I would have started third but instead to playing defense for 12 laps I got to drive relaxed, work the pack, and hope my momentum carried me to the win. Once the second place in point's car broke I wanted the win but didn't have to anymore so I just kept the pressure on the leader hoping to force a mistake. In the end the title was more important."

Cody Rahders Racing would like to thank his sponsors Polaris, Cognito Motor Sports, Sparks Racing, Fox Superchips, Black Rhino Performance, GMZ Race Products, Method Race Wheels, K&N Filters, PAC Racing Springs, RacerX Race Radios, Streamline Performance, UTVunderground, Twisted Stitch Seats, and Lucas Oil for their support. He would also like to thank his team, spotter Nick Novak, mechanics Jon Kelly and Kevin Sullivan, Gina Snew, and his mom & dad.

After months of hard work by the industry's best, RJ Anderson's new 2016 Polaris RZR XP Turbo is complete and will be used in the soon to be unveiled XP1K3 YouTube video sequel

A quick YouTube search for "RJ Anderson" will find the UTVUnderground.com video from 2013 titled RJ Anderson XP1K. This video became a huge internet success and building on that success, RJ Anderson and the UTVUnderground team created a follow up YouTube video named UTVUnderground Presents: RJ Anderson's XP1K2.

K&N sponsored RJ Anderson races in LOORRS and the WORCS series, but became well known for the outrageous 2013 UTVUnderground.com video titled RJ Anderson XP1K

The seven minute sequel to XP1K expanded on the intense off-road action while giving the audience an intense YouTube experience. More than a year of planning when into the development and execution of XP1K2 with a month spent creating the off-road playground and fourteen days spent filming on location near Mount Baker, Washington. Never satisfied, K&N Air Filters sponsored off-road truck and UTV racer RJ Anderson is at it again.

After months of hard work by the industry's best companies, RJ's new 2016 Polaris XP1K3 RZR XP Turbo is complete. UTVUnderground.com partnered with Mark Holz of Holz Racing Products to build RJ Anderson the ultimate Polaris RZR XP Turbo for the upcoming XP1K3 video campaign. Together with BFGoodrich Tires, Walker Evans Racing, Monster Energy, K&T Performance, Muzzys Performance, STM Powersports, Mastercraft Safety, ProLine Wraps, Power Commander, RacePak, Next Level Motorsports and a host of other premier companies, products and individuals, the new XP1K3 Polaris RZR has arrived.

UTVUnderground.com and Mark Holz of Holz Racing Products set out to build RJ Anderson the baddest Turbo powered RZR since the first XP1K project. Listed below is a detailed list of all that went into building the amazing RZR turbo that RJ will pilot in the upcoming XP1K3 video. The XP1K3 video will be unveiled at the 2015 Camp RZR Glamis event on Halloween weekend 2015.

Chassis: 2016 Polaris RZR XP Turbo
Builder: Holz Racing Products
Roll Cage: Holz Racing Products Chromoly Tig-Welded Race Cage & Bumpers
Suspension: Holz Racing Products Chromoly A-Arms (Front), Trailing Arms (Rear) & Radius Rods
Sway Bars: Holz Racing Products (Front & Rear)
Shocks: Walker Evans Racing 2.5" Velocity Series
Wheels: 15" Walker Evans Racing Bead Locks
Tires: 30 X 9.50 X R15 BFGoodrich KR2 UTV Tires
Safety: Mastercraft Safety 3" 5-Point Harnesses
Brakes: Factory Polaris Braking System w/ Holz Racing Products Custom XP1K3 Hand Brake System
Engine: 200 Horsepower Muzzys Performance 1132cc Big Bore
Turbo: K&T Performance RZR 1000 Turbo System (Tuned by K&T Performance & Redline Racing)
Exhaust: Muzzys Performance
Dash | Pass Door Panel | Interior Trim | Grill: Next Level Motorsports
Dash Electronics: RacePak RZR Display & Data Acquisition | Power Commander DynoJet Pod 300 Display
Clutch: STM Powersports Rage 8 Primary & Secondary Clutch w/ Fuel Customs Oversized Clutch Cover
Graphics: ProLine Wraps Vehicle Wrap Designed by Mad Media

Holz Racing Products Accessories:

Engine Mounts
Brake Pedal Assembly
Shifter Relocation Kit w/ Billet Shifter
Billet Front Differential
Sprague Gear
Steering Mount Bracket
Steering Wheel Quick Disconnect

Engine Details:

Muzzys Performance 1132cc Billet Closed Deck Cylinder
Muzzys Spec Carillo Rods
Muzzys Big-Bore Turbo Pistons
Muzzys Ported & Polished Head w/ Big Valve Conversion
Muzzys Valve Springs
Muzzys Custom Turbo Camshafts
Benchmark Performance Turbo ECU
Power Commander for Boost
DynoJet Auto-Tune

K&T Performance Turbo Kit Details:

304 Stainless Steel 1/8" Tig Welded Exhaust Manifold w/ V Band Turbine Inlet & External Wastegate
Turbosmart Comp 40 Series Adjustable External Wastegate
Custom Air-to-Air Intercooler w/ Sheet-Metal Intakes & CNC Machined Bungs
Mandrel-Bent 16ga Aluminum Intercooler Piping w/ Bead Rolled Ends
Heavy Duty 4ply Silicone Couplers
Custom Air Intake Plenum Featuring CNC Machined O-Ring Base
Billet Aluminum Intake Manifolds Before Throttle Body
CNC Machined Aluminum Primary Fuel Rail w/ Threaded Ends
Mandrel Bent Single Piece 304 Stainless Steel 2.5? Exhaust Downpipe w/ Muzzys Exhaust
Performance Teflon Lined Stainless Braided Oil Lines w/ AN Fittings
Aluminum Formed Turbo Heat Shield
Garrett GTX Turbo 28/67 w/ 8.6 V-Band Turbine Housing
Bosch Boost Referenced Fuel Regulator w/ Pressure Gauge
ID 1000cc Primary Injectors

The Chevy Camaro, introduced in 1967, was General Motors' answer to the wildly popular first generation Ford Mustang. After 35 years of continuous production, the Camaro took a hiatus between 2002 and 2010, but when it returned, it came back in a big way. The fifth generation 2010 Chevy Camaro took styling inspiration from the original 1967 Camaro. The standard engine for fifth generation Camaro models is a 300 horsepower 3.6L V6 engine and should be plenty of power for most drivers. However, Chevy Camaro owners tend to be car enthusiasts, and Camaro people have a love of acceleration and speed. This is why Chevy Camaro owners who opted for the 6.2L 426 horsepower LS3 engine will be delighted to find out that K&N air filters offers a 50-state street legal intake system for 2010, 2011, 2012, 2013 and 2014 Chevy Camaro 6.2L V8 models.

After 35 years of production, the Camaro took a hiatus, but when it returned, it came back in a big way taking inspiration from the original 1967 Camaro

Just because the 2010-2014 Chevrolet Camaro SS 6.2L V8 street legal air intake system looks a little different, doesn't mean that it won't live up to K&N's performance standards

The K&N 50-state legal performance air intake system for 2010-2014 Chevrolet Camaro 6.2L V8 models is a little different from the average K&N performance air intake. Instead of using an open element air filter system, K&N designers chose to retain the use of the 2010-2014 Chevrolet Camaro 6.2L V8 stock air box when designing the 57-3074 K&N performance air intake system. K&N air intake 57-3074 replaces the most restrictive factory components with performance designed parts from K&N. By working around the stock Chevy Camaro air filter box K&N Intake designers were able to retain all factory connections, including stock emissions control equipment, to create a 50-state street legal air intake system available to residents of California and other states with similar emission controls.

Just because the 2010-2014 Chevrolet Camaro SS 6.2L V8 street legal air intake system looks a little different, doesn't mean that it won't live up to K&N's performance standards. K&N intake systems are performance designed and backed with a horsepower guarantee. In-house dyno testing shows that the K&N 2010-2014 Chevrolet Camaro 6.2L V8 street legal air intake produced an estimated 6.54 additional horsepower and 6.39 lb-ft of torque increase at the wheels of an otherwise stock 2011 Camaro SS. All of the design features of the 2010-2014 Chevrolet Camaro 6.2L V8 K&N performance 50 state legal air intake system have been tuned to enhance horsepower and torque delivery across the RPM range, with the added benefit of improved engine sound.

By working around the 2010-2014 stock Chevy Camaro V8 air box K&N was able to retain all factory connections, including emissions control equipment, to create a 50-state street legal air intake

K&N street legal air intake system, number 57-3074, is a fast and easy upgrade for 2010-2014 Chevrolet Camaro 6.2L V8 models. By retaining the stock air filter box, installation of K&N air intake 57-3074 can be completed in very little time, using only a screwdriver and the simple to follow step by step instructions. There is no need to make other modifications to your Camaro to experience the increased performance of K&N Camaro SS air intake 57-3074. Plus, K&N intake system 57-3074 is street legal in all 50 states for 2010-2014 Chevy Camaro 6.2L V8 models. K&N is so confident in its products that K&N backs its washable High-flow Air Filters and Performance Air Intake Systems with a 10-year/million mile limited warranty as well as a horsepower guarantee for K&N air intake systems.

K&N Camaro SS air intake 57-3074 is designed to add a street legal performance upgrade to the following Chevy Camaro models:

2014 Chevrolet Camaro 6.2L V8 CARB EO# D-269-49
2013 Chevrolet Camaro 6.2L V8 CARB EO# D-269-49
2012 Chevrolet Camaro 6.2L V8 CARB EO# D-269-49
2011 Chevrolet Camaro 6.2L V8 CARB EO# D-269-49
2010 Chevrolet Camaro 6.2L V8 CARB EO# D-269-49

Even more K&N performance air intakes for Chevrolet Camaro models can be found on the Chevrolet Camaro Air Intakes page.