Putting A Performance Exhaust On My Car

[VicTusDeuS]

Will this increase or decrease gas mileage...Im thinking about replacing everything including the cat and back.

 

[the nature boy]

try this

http://www.pr0n.com/images/misc/carwhistle.wmv

 

[OXANDRIN]

i want one of those whistler exhaust....my neighbors bitched at me when i had a APR VM1 exhaust with race down pipes on my audi s4..... i'd just drive up and down the street all night

 

[p0ink]

i know *NOTHING* about cars.

cut my balls off.

 

[p0ink]

i want one of those whistler exhaust....my neighbors bitched at me when i had a APR VM1 exhaust with race down pipes on my audi s4..... i'd just drive up and down the street all night

you have an s4? how old are you?