Our intake system utilizes a stock size MAF housing that doesn't require any retuning. You can bolt this on and notice immediate performance gains! Our intake also utilizes a custom billet 5" velocity stack to help funnel as much air as quickly as possible through our intake. This combined with a huge K&N filter gives us the most filter surface area and flow possible. The filter is specifically placed to allow the use of the factory ram air duct. If you want to keep things looking stealthy under the hood we also have an airbox available as well (You can select this from the drop downs below). This helps to isolate the intake from the hot engine bay temps and provide the coldest and most direct intake charge. Backed by our manufacturer's warranty and the best customer service in the industry, you can buy this knowing the fit an finish will be unlike any other product on the market.

We've designed our ETS 2015+ WRX intake to work with the factory tune, but for maximum performance, we still recommend a pro tune.

Above is a log file showing the difference between the factory tune with stock intake and the factory tune with an ETS intake. You can see the difference is .5 AFR leaner, which is still a safe AFR.

We also have a great testimony from Junior Barrios (JR Tuned) referencing power gains from installing JUST our ETS intake system.

"This car was tuned with the stock airbox setup, then again with only the addition of an ETS intake.
Very basic pump gas car and as you see the gains from the intake are substantial. Car is also overall safer now since it takes less effort to make power.

Stainless Steel Construction Wrinkle Black 3.0" Internal Diameter No tune needed! Install and enjoy 5.0" cone filter for maximum surface area Airbox that uses factory bumper ducting Least turbulent path of any intake on the market Hours of research and development Made in the USA Direct replacement. Installs in 30 minutes. Fits any 2015+ WRX (can not have Subaru Eyesight)
Intake Pipe 2.75"-3.00" 45* Coupler 3.00" Straight Silicone 4x3.00" Worm Drive Clamps MAF Adaptor MAF Extension Harness Dielectric Grease K&N Custom Made ETS Filter Hardware needed to install Optional Airbox
	Aggressive yet subtle turbo noises Easier flowing Quicker spooling Easiest power and easiest install Increases intake diameter by a full 1/2 inch Lighter and more durable than a factory set up.