Where can I find a cold air intake for my 1999 Bonneville sle any web sites?

Ebay

there is nothing made for your car, but you can do what mant others have done. Go to Autozone or ebay, and get a civic intake. you a coupler that is made of silicon or you can use your accordian tube......you will need to cut to to length and then get a K&N filter for it. Dont get anything else, they hold water and are not effective. After you have that done you need to make a heatshield. It is really simple and there are tons of ways to make it. you car get away with this project for under 100

Ebay intakes usually lack an important ingredient or two. Length and quailty come to mind.

Try the civic pipe from Autozone and a K&N RX4750 filter.

There'* some help here:

http://www.bonneville.fearthepearl.c....php?page=mods

Keep in mind, and INTAKE is the pipe and filter. A CAI is a sheild that goes around the filter to keep it from drawing hot engine bay air. Both will be custom.

Read this one too:

http://www.bonnevilleclub.com/techinfo/?article=40

The Techinfo link at the top of the page has a ton of information.