Originally Posted by 97bonnevillextreme
Thats not a K&N filter that comes with that and you need an AirBox to actually make the HP! I have one and it does not make a big differance, unless you put a real k&N closed end filter and make an Air BOX and force some air in!... a heat shield helps also....then you get your gains! Trust me I've had one for over a year from the same guy!
This maybe true but, are you telling me you didn't notice any differance? It may not be the ultra performance upgrade but, I noticed a big change in torque. I haven't taken it out on the interstate yet but, a few laps around the neighborhood. I'm impressed with the differance. A 35' patch of rubber leaving the diveway
told me this was a good improvment. I'm not done yet. The air box is in the works.