Well another shop has failed to go through with doing my exhaust system so i guess i'll be getting the custom tubes inc piping done and wanted to see what everyones thoughts was for exhaust sizing for me because i am running 9:1 CR with the 2.6" pulley on the m45 and i just think that since im running lower CR than everyone elseon this board (i picked up a few tenths in the 1/4 mile by doing this somehow) that 2.5" exhaust would be a overkill on my power. I have 2.25" now with a HUGE amount of low end and a decent top end but we all know the charger dies on top end so what you guys think based on knowing my CR and what charger im running.

I would keep your 2.25" exhaust. That size is fine for a lot of applications. 2.5" would be a waste of money for you, imo.

hmm idk it alldepends on what size your cams are. I would say a 2.5 wouldnt be bad because your charged



LE61T PTE6262 Powered

I will let you know in a month or so. I have a 3" catback




Jason
99 Z24
157hp/171tq
wheres my boost??

2.5..... at the smallest

Chris


'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08