Catback exhaust opinions?
 

Hey all, I'm trying to decide what exhaust to install on my FR-S. I'm leaning towards the Greddy Evo3 or the ISIS from Enjuku racing, but I may wait for the TRD system if either of these will affect my ability to pass smog. I wouldn't think so, but if there's anyone that has experience with this I'd appreciate input.

Also, will installing an aftermarket exhaust affect my warranty? If it will, I may just wait for the TRD exhaust to become available and have my dealership install it.

I really love how the Evo3 and the ISIS sound, though. :(

Thanks!

Kat

TRD is the least hassle way to go ..
I'm hoping Evo3 gets CARBd mostly bc Greddy is such a big company I can see them going through the trouble of getting it CARBd

Anything that has direct connection to the exhaust will void the warrnty of the part - but in all seriousness, not likely.
There is no reason that the exhaust will damage any part of the car including the engine - it gets better airflow than the stock. [they could claim that the "back pressure is too much that it pulls out too much air from the combustion chambers and messes with the air/fuel ratios" but that seems like a load of bs]
But if a dealer hates you for it, go to the next dealership for work. Some dealerships cares, others don't.
TRD exhaust will be 100% hassle/haggle free.

But I'm still waitin on the Greddy ;)

edit: deleted the random 'for' lol

I know! It sounds so good! I hope you're right and that Greddy sees the demand and CARBs it; that would make me very happy. TRD exhaust isn't bad sounding, but it's a bit quiet for my preference.

I'm personally not too interested in the noise produced, I'm sure I'd like them all you know?

I'm more interested in the design and layout - the Evo3 is straight and super clean looking Y back.
That's the design I'm looking for and Greddy finishing has got that name backin' them up!
Supposedly its their better ones for this car too.

Also considering how its a 2.75" it may be enough for a low boost turbo later on when I do boost too ~

I'm trying to keep myself from doing too much with this car besides exhaust and a few cosmetic mods; she's supposed to be my daily driver. I just want her to sound a bit more aggressive. Besides, I'm afraid if I start doing too much I'll end up with two cash sinks instead of one! I gotta save money for more parts for my FD. I want to be able to afford my 20B swap someday! :bellyroll:

haha i know what you mean.
good thing suby is pretty well known for good intakes - our exhaust piping is another story though ... so pretty much exactly all that's needed .. besides header and tune :P

you should post pictures of your two babies together!

http://i1056.photobucket.com/albums/...7/fec272e4.jpg

Here's a picture of my babies Saturday at the Central Valley Rotaries meet here in Hanford. Photo courtesy of Jadrien (thanks!), unofficial meet photographer.

Oh FD. I love thee so much.

I'm going to guess that the Greddy one is most likely to get a CARB certification if you're worried about smog. I believe for new vehicles though you don't need to worry about smogging it for 6 years then every 2 years after that. Also to deny you warranty they would need to prove the exhaust is the cause of the failure. Whatever that failure may be. Though in one case at the dealer I was working at, some field engineers found the customers aftermarket exhaust was the cause of constant light bulb failures believe it or not.


Love the FD BTW.

Yeah, I won't have to worry about smogging it for a few years. I guess I could always just keep my stock exhaust and swap it back on if a smog shop gives me a hard time; it's just a pain to do that. Same thing with the warranty; "Aftermarket parts? What aftermarket parts?"

I've heard the smog check will be simplified starting Jan 2013. No more emissions tests, just a visual and OBDII check - if you don't have any engine codes, pass. So I don't think any exhaust that retains the cat will have a problem. Cat back = after the cat, so should be fine.

http://www.i-club.com/forums/bay-are...adings-241314/

If this is for real, definitely going for ISIS or Evo3.

The cat back part, yes. The smog part changing...I doubt it. But maybe this will pertain to newer cars. There are just too many older cars that would still need to have the stick in the pipe reading. Also they still have too many issues with people skirting the smog process. If anything it will get tougher.

if you read the story the simplified smog is for cars 2000 and newer. older cars still have to do the full tailpipe emissions test.