Point well taken pog. Looks like a hi-flo cat is the way to go here in call, the golden state of the strictest emission standards.

 

Also have a 9 and currently just a catback and flash installed. The catback made a big difference in spoolup, it seems that the car wants to rev faster. I ordered a high flow cat which is on its way and currently looking for a downpipe to complete the system. I too am scared of getting pulled over and them finding out I have no cat. I will try to gut the cat though so it is more free-flowing. As long as it visually looks stock I would feel safe. In the even I get tested I can just bolt on the stock cat.

 

If you want to go the inexpensive route, I have a BR axle back for sale. Just 175 shipped and its good for about 15 whp without a tune.

 

Love it how people hijack threads with their for sale items . Feel free to post, I don't mind!

 

Get a test-pipe wrapped around a cat. Check out Road Race Engineering for all your exhaust needs/questions.

 

Good iea Doogie. I'll look into that as well.

 

Yes, it is best to get a HF Cat for the street and a test pipe for the track or dyno.

 

Hey Silex,

Where in SD are you from? I haven't seen a Black IX around yet. Seen 2 other GG IXs besides mine, and a Silver one. I see a lot of 8s though.

For exhaust, it depends how much you want to spend. I am paying a good amount for RnRs because I wanted some extra things put in plus the HKS muffler. I think it will be well worth the money spent for your own taste and needs.

 

I'm in the UTC area actually . Right near UCSD. I'm probably going to go also with RnR's setup. Havn't decided yet on the options. I've got a bunch of other stuff coming in so first thing's first.

 

actually, there is no point for the SMART system on the 06's. shiv said that the ecu's have 6 maps, compared to 3 on the 03-05, and worked much like his smart system.

 

Hey Silex,

Dude, I work literally 2 minutes from UCSD. I will be getting my RnR setup this Friday (HOPEFULLY), so if you want to hear it and make your decision final, stop by!

 

no question TBE.

 

Intakes and blow-off valves are not really the best performance mods. Go full TBE and a reflash. You'll be blown away. I started with a CB and an EcuTek flash and dynotune. It was nice, but still left me wanting more. Put on a Tanabe DP and high-flow cat and, even before another flash and tune, it was like a shot in the a$$. After the tune this car is pretty fast. Spinning all 4 wheels across an intersection on a dry warm day is something every Evo needs to experience first hand.

 

Ecutek flash would be a great choice!!!!!!!!!!

 

The stock cat can perform well with minimal mods. My car has a nice sound to it but nosie wise is very close to stock. See my signature.