Downpipe for a Greddy Exhaust

[SilenceEvolves]

Which downpipe would be the best fit for a Greddy Cat-Back exhaust? I'm not sure which exhaust system it is, as the previous owner only told me it was a Greddy. It has a piece stamped on the bottom of the can that says "Greddy U.S. Spec Cat-Back Exhaust", but doesn't say which one it is. It looks like the Power Extreme, possibly the EVO. Are all the Greddy exhaust systems the same length? I know they neck down to fit the stock catalytic converter. Since it necks down, would it even be any use to install a bigger downpipe (with or without a catalytic)? If need be, I will take pictures of the exhaust system.

 

[Rx3]

The Greddy exhaust (PE or EVO) connect to the cat with a 2.5" flange. So any downpipe/hi-flow cat package that has a 2.5" diameter will be a direct fit. If you are trying to fit something bigger, say for instance a 3" diameter downpipe/cat, then you will have to cut the section of the Greddy exhaust that is 2.5" and weld a 3" connector and flange for your 3" diameter setup.



You also might want to check this out: http://www.dsmtuners.com/forums/showthread.php?t=184492

 

[SilenceEvolves]

Thanks a lot, Rx3.

EDIT: When you switched to the 3" downpipe/high flow cat, is there any reason you went with Hybrid Connection instead of Buschur?

 

[Rx3]

Thanks a lot, Rx3.

EDIT: When you switched to the 3" downpipe/high flow cat, is there any reason you went with Hybrid Connection instead of Buschur?

Cost and convenience.