I hav a bonnevile sle 03 and i cant find any exhaust systems for my car, im starting to think i have to find a muffler shop and hav it custom made or somthin, even the universals dont go for my car ><

Why do you need to replace your exhaust system? For performance reasons? The OEM exhaust systems are stainless steel and will outlast the car! The only thing you would ever HAVE to replace is the catalytic converter.

Yup... and also increasing the exhaust size does no good on the 3800, the stock 2.5" system is completely fine, even in supercharged applications into the high 12'*/low 13'*.

The Series II needs all the low end torque it can get, so keep the stock size.

if for some reason you do have to replace them. and you just want to know what kind you have, they are Borla Mufflers.

its actually Bosal mufflers

my bad, Thanks for the correction

hmm so should i just change the mufflers? cuz i kinda want the noise ;P

I've got a flowmaster 80 series 2.5" in/dual 2.5" out on mine, and I like it

There are other members who prefer magnaflow.

EDIT: Click the link in the sig to hear/see it.