If you want to save some money and also get a nice performance increase, do what I just did today. I got rid of the stock pipe that comes out of the air box to the area behind the headlight. The stock pipe is really narrow towards the end. I put a 3 " pipe coupler on where that pipe used to be to suck air from behind the headlight area. There is at least an inch difference in size and I sure did feel the increase. I have a stock replacement K&N filter in the box. Cost me $7 in parts and gained alot of flow.
1999 Oldsmobile Culttlass GLS
SOLD - 1994 Bonneville w/198,000 miles
BC Member 4 Life, or at least until banned