I want to install CAI on my AT4 and I'm researching K&N. Will CAI help improve my AT4? Which brand is better than K&N?
Thanks for your sharing, I like K&N, too. I read reviews about best cold air intakes and they said it only enhances aesthetics. i really want to know if it helps improve my car's performance or not?I have always used K&N Fuel Injection Performance Kits (FIPH) in my GM's - I don't monitor fuel consumption, but I do notice better throttle response and additional growl from up front (as opposed to out of the exhaust). I have read a million reviews that they don't actually do much, but I like them and they are easy/enjoyable to install. Also, I have always used Borla Exhaust Systems and I think the combination bring the motor to life a bit and sounds great.