Stock 3800 downpipe U bend cutaway pics
#14
#15
Its part of the cat- if you have a catless off road pipe, then you would just have regular pipe in place of it.
#17
EDITED My original post to include more pictures of the stock exhaust to the resonator.
The cat does restrict some, but it is for emissions purposes. Obviously a straight pipe will be more free flowing, but Cats are the law and I like to build my car to abide by those laws. Plus it is a high flow cat, so the restrictions are minimal (compared to the stock)
The cat does restrict some, but it is for emissions purposes. Obviously a straight pipe will be more free flowing, but Cats are the law and I like to build my car to abide by those laws. Plus it is a high flow cat, so the restrictions are minimal (compared to the stock)
#18
The cat does restrict some, but it is for emissions purposes. Obviously a straight pipe will be more free flowing, but Cats are the law and I like to build my car to abide by those laws. Plus it is a high flow cat, so the restrictions are minimal (compared to the stock)
#19
oh i understand. when i had my res and ubend delete i notice a decent increase, but then when i went with the offroad pipe i really didnt notice anything but sound. now i still have a question if you can bare with me here, so as you know i got a nice flowing exhaust, what will a new set of headers get me ? just sound or will i see some kind of increase in power??
#20
No clue on the 3400's. I have no idea how bad the stock manifolds are, or how good the aftermarket headers you're looking for are.
Most cars see a decent power gain with headers because many factory designs have to compromise flow in some areas for one reason or another (production costs, easier production line install, etc).
Most cars see a decent power gain with headers because many factory designs have to compromise flow in some areas for one reason or another (production costs, easier production line install, etc).