Stage 2 exhaust help
#1
Stage 2 exhaust help
Hey guys I am new to I-club but I have been around on other sites. I am looking into getting this http://www.subimods.com/french/invid...7-wrx-sti.html. For my 04 wrx with 120000 miles on it.
I had a couple questions I know once I get the exhaust that it won't pass smog unless I replace the CBE with the stock one but my friend is suggesting for me to go fully cattless what's your guys opinion on going full cattless? Is there something bad about going full cattless?
My normal plan was to go cattless up pipe, catted DP and the n1 race burnt titanium tip. Get all new gaskets with this purchase also.
I had a couple questions I know once I get the exhaust that it won't pass smog unless I replace the CBE with the stock one but my friend is suggesting for me to go fully cattless what's your guys opinion on going full cattless? Is there something bad about going full cattless?
My normal plan was to go cattless up pipe, catted DP and the n1 race burnt titanium tip. Get all new gaskets with this purchase also.
#2
Technical Know-It-All
Join Date: Oct 2003
Location: Sterling, VA
Posts: 2,123
Car Info: '02 WRX + '15 WRX
I'm absolutely not a fan of the Invidia N1 Race. It sounds awful and it's too loud. But that's personal opinion.
Catted is fine and so is non-catted. On a stage 2 car a high flow cat won't be a restriction, so you won't run into any problems either choice.
Catted is fine and so is non-catted. On a stage 2 car a high flow cat won't be a restriction, so you won't run into any problems either choice.
#4
Registered User
iTrader: (6)
Join Date: Jul 2011
Location: Sacramento, CA
Posts: 383
Car Info: 2003 WRX
Catless is fine provided you dont mind:
Polluting more than you would otherwise
Running the risk of a hefty fine if you get caught
Swapping to a catted downpipe every two years to pass emissions
04+ cars reportedly have issues running catless downpipes without a tune. You should look into that as well.
Polluting more than you would otherwise
Running the risk of a hefty fine if you get caught
Swapping to a catted downpipe every two years to pass emissions
04+ cars reportedly have issues running catless downpipes without a tune. You should look into that as well.
#5
Technical Know-It-All
Join Date: Oct 2003
Location: Sterling, VA
Posts: 2,123
Car Info: '02 WRX + '15 WRX
Catless is fine provided you dont mind:
Polluting more than you would otherwise
Running the risk of a hefty fine if you get caught
Swapping to a catted downpipe every two years to pass emissions
04+ cars reportedly have issues running catless downpipes without a tune. You should look into that as well.
Polluting more than you would otherwise
Running the risk of a hefty fine if you get caught
Swapping to a catted downpipe every two years to pass emissions
04+ cars reportedly have issues running catless downpipes without a tune. You should look into that as well.
For the record, aftermarket catted downpipes aren't necessarily legal either.
#6
Registered User
iTrader: (6)
Join Date: Jul 2011
Location: Sacramento, CA
Posts: 383
Car Info: 2003 WRX
For the record, aftermarket catted downpipes aren't necessarily legal either.
four bangin'- CA requires OEM cats be used.
#7
I live in the Bay Area. I heard from many other people about this whole invidia exhaust will not pass smog, so I am willing to hold onto the stock one and exchange it out when the time comes to pass smog.
#8
Registered User
iTrader: (6)
Join Date: Jul 2011
Location: Sacramento, CA
Posts: 383
Car Info: 2003 WRX
Rest assured, the portion of the exhaust from the downpipe-back (cat-back) is CARB legal. Whether or not the race version of the N1 will pass the noise restriction is another story, however a smog shop will not fail you for being too noisy, nor will they check. The uppipe is a PITA to swap back-and-forth for smog purposes. My personal recomendation (after you have the full kit/tune installed) would be to simply swap in your stock downpipe when you need to pass smog.... keep everything else as-is.
#9
Alright sweet thanks for the info guys much appreciated! Now is the wait to get the cash for the purchase. Do you know any good tuners in the Bay Area? How much would it cost to get a tune so I can get a good estimate of how much this whole project will be.
Thread
Thread Starter
Forum
Replies
Last Post
KTW
Engine/Power - EJ20T (pre-2006 WRX and JDM)
7
07-12-2004 07:33 PM
casualsurfer
Engine/Power - EJ20T (pre-2006 WRX and JDM)
9
05-03-2004 03:24 PM
pillaka
Aftermarket Forced Induction - Turboed factory NA engines
29
12-01-2002 01:14 PM