gospeedgo1

you could always get a highflow cat.
Hytech sells a Renault cat which is supposed to flow and clean exhaust very well.

SpaS2K2005

or you could get a J's test pipe that has the mounts on it for the stock cat shell... atlest then youll be able to keep the TP and the 25 hp while also haveing a decent shot at not getting a ticket for having a testpipe.

faukengenius

why put the oem cat back on homie?

WashabiS2K

well, basically, I was using an invidia 70mm test pipe before I swapped the oem cat back on. The main reason that I swapped back was because the exhaust piping was rattling against the frame with the invidia tp. Upon further inspection, we were able to deduct that the problem was that the testpipe was slightly shorter than the oem cat. The exhaust was rattling really really badly, and most of you should know that titanium piping will not hold up too long if it is rattling against another piece of metal. After swapping the invidia testpipe out for the oem cat, the exhaust no longer rattles. I would swap over to another testpipe, but the oem cat was already on-hand (swapped with a buddy of mine, my tp for his oem cat) and was the easier decision since I absolutely hated the rattling.

s2sik

your car is amazing

B18C5-Eg6

what EMS are you using?? and how many PSI are u running to make 347WHP?

WashabiS2K

AEM EMS 1052-U, 11psi @ 11:1 (stock) compression, CTSC, ASM exhaust manifold, OEM Cat, ASM Ti 70mm Exhaust. It was making 364.8whp with the 70mm testpipe.

faukengenius

^ nice I would do the same. I hate rattling.

//steve\\

You're still making nice numbers. Do you daily drive the car? How do you like the AEM and how is cold startup?

WashabiS2K

Thanks, and no the car is not daily driven. The AEM works pretty well, assuming it is tuned correctly. Cold startup is just like any other AEM EMS, it takes a little while for it to start (not that long, maybe 3 or 4 seconds) but it isn't too bad.