05-09-2005, 09:25 PM
I was wondering about the size of the exhaust and it's compatibility with a turbo kit. I have read that having a 3" exhaust/flex is ideal for a turbo setup. The question I would like to have discussed is about having a 2.5" exhaust/flex setup. Would a 2.5" system work well with a turbo setup and how much performance would that "take away" compared to a 3" setup? Thanks in advance.
05-09-2005, 09:33 PM
if u already have the 2.5 it wont be worth it to upgrade to bigger. 2.5 flows just fine unless you want to push something like 12-16lbs or higher.
05-09-2005, 09:48 PM
2.5 will work, BUT 3" does better. The whole idea is to get the hot exhaust gases away from the turbo as soon as possible[thumb] Less restriction means more flow, more flow means faster spool..............
05-09-2005, 11:45 PM
Thanks for the replies. Reason why I'm asking about the difference in sizes is because I'd like to upgrade my exhaust before I get the turbo system. Though if something comes up that doesn't allow me to buy the turbo when I'd like to get it, I don't want to have an exhaust system that will end up losing power. I've read that having a 3" system on a N/A system will show poorer performance. So I'm looking to see if getting a 2.5" system would be a nice setup to go with to be on the safe side of things. Thanks a lot!
05-10-2005, 07:07 PM
3" wont hurt performance if you stay N/A for a while. I ran mine for 3 months before taking the car to Tom's, as soon as I pulled out from the muffler shop there was a noticable difference between the 3" and the 2.5" Magnaflow that it replaced. In the end it all boils down too what YOU want[thumb]
05-10-2005, 11:22 PM
I just want to get this straight. . . so if I decide to go with the 3" Exhaust/Flex Pipe and it turns out that I wouldn't be able to get the turbo, the 3" setup would be fine for N/A right?
If it would turn out that I wouldn't be getting a turbo and I had the 3" exhaust, I would also upgrade my header as well.
05-12-2005, 04:45 PM
3" is way too large for NA, 4 bangers need the back pressure to help with low end
I have a 2.5 and im doing about 15psi on my turbo setup.