G50 Exhaust Manifolds

[Lifted79CJ7]

Anyone know how much replacements cost? I remember reading on hear somewhere that the Japanese version did not have the precats on them, is this correct? I'm just looking at redoing my exhaust is why I ask....

[Q451990]

You're correct on the Japanese ones not having pre-cats. I'm not sure what you're planning on doing - but it sounds like a lot of work to get rid of them... I won't mention any EPA violations on the board, but there's a much easier solution...

I suspect you can get the JDM ones at a shop somewhere that swaps in JDM takeouts - or from an importer.

Dennis mentioned that something appears to be different in the USDM ECU program vs. the JDM program that makes not having them somehow less than ideal. I don't remember what though... you can fix that with the NICO ECU, since one of the programs is a carbon copy of the JDM maps.

Heath