K&N Performance Cold Air Intake System: Easy Installation, Engineered to Maximize Airflow, Boost Horsepower & Torque, 57-1500-1

I installed this Air Filter Kit on my 1997 Mistsubishi 3000 GT SL today. It improved throttle response / performance substantially. The stock air filter is very restrictive. When accelerating from a dead stop, the engine used to feel like it had a sock in its throat until the air flow could accelerate within the intake manifold. With this new K&N filter, the Sock in the throat issue is completely gone. As well, the acceleration curve is smoother and more linear. I also sense a bit of an increase in horsepower I'm guessing 3-5 percent, taking this engine from 222 to about 230 HP. I'm most impressed by the overall improvement in Drive-ability. My Japanese Rice Rocket just feels better to drive. Well worth the money I paid for the filter kit.

Just got this for my father's '95 SL *AUTOMATIC* Guys with automatics: Be very careful that the included L-brackets are NOT touching the automatic shift arm. This SHOULD be added in the instructions, as for non-mechanics this is an easy mistake to make. I installed it as instructed, and didn't really notice that one of the L brackets was touching the shift arm. This caused the car to not even crank. After drilling a second hole in the L bracket (this is the bracket closer to the front of the car), I was able to move the filter further towards the passenger side, so it cleared the shift arm. Also, I was sent this product missing a part (the filter adapter itself), but customer support resolved it after a minute or two on the phone and shipped it next day. All in all, not the best value, but a good buy especially for the n/a cars.