I'm looking for some info/reviews on high-flow cats available for our sedans. So far I see the available types are:
RT cats $569
Kinetix High Flow cats $389
Crawford Cats $450

If you have any of these installed on your sedan please respond with a short review of sound, power gains, and any fitment issues. Thanks.

2003.5 G35s, 6mt, black/black
35%tint - clearc corners - z-tube

 

I have the Kinetix cats on my sedan. Fitment was an indeed an issue because the driver-side cat touched the floorboard resulting in an ugly rattle. I ended up having to go to a muffler shop (which I should have done in the first place instead of having my local tuning shop do it) to have them bend stuff a bit to make everything fit.

I was told by the guys Performance Nissan that this is a G35 Sedan issue and NOT just a Kinetix issue because they have had similar problems with the RT Cats. They actually recommended pounding a notch in the floorboard!

--Steve

 

Steve

That was my car on which we learned tat the sedan floorboard IS different. Myself, along wtht eh guys at PerfNissan, had to make X-incisions on the floorboards (It's a double wall - so it's ok to cut) and hammer them in to make the cats fit.

Gurgen

 

Man, this sounds ugly. I was just thinking about getting the Kinetix Combo with CAT & Plenum.

~ GT-R the Ultimate Driving Machine ~
- 2004 G35 Ivory Pearl/Black Leather
- Auto/Nav/Premium/Sports/Aero
- 6 wire grounding kit

 

zimbo:

what did your install end up running you? what kind special stuff did the mufler shop have to do?

2003.5 G35s, 6mt, black/black
35%tint - clear corners - z-tube