exhaust ???

[jsp413]

ive searched all through g2 post fo this but i cant find it an i know i saw it once. but what is a good diameter exhaust for a da that is not going to be boosted? i think i read b4 that i was like 2.25 or something close to that? thanks

 

[OGstackadoIIa]

My understanding is the exhaust piping should be around 2.5 inches for N/A vehicles and 3 inches for boosted cars

 

[guiltyxxspark]

2.5" is fine.

 

[BrokenTalon27]

Less than 190whp(N/A)-2.36"(60mm)
More than 190whp(N/A)-2.5"(63.5mm)
Boosted application-3"(76.2mm)

 

[Dtackett]

^^^^ perfect example, but make sure if your going with an aftermarket exhaust your intake is supplying enough air or your wasting money. and losing gas mileage