Stage 2 Stealth Setup
Registered User
Joined: Mar 2006
Posts: 104
From: in Transition
Car Info: 06 Aspen White STI
I'm running a Cobb catted DP mated to a stock STI catback. You're going to get most of your power gains just from the DP. You'll maybe give up ~5whp by sticking with the stock STI catback (don't know about the WRX cat back). I've been running my setup with a protune from EQ tuning for the last 3 years and I've been quite happy. I've never felt the car has lacked for power (for me).
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iTrader: (2)
Joined: Apr 2009
Posts: 283
From: Santa Rosa
Car Info: 2002 WRB WRX
Does the Cobb catted DP pass smog or do you revert back to stock dp when you need to smog it?
I'm running a Cobb catted DP mated to a stock STI catback. You're going to get most of your power gains just from the DP. You'll maybe give up ~5whp by sticking with the stock STI catback (don't know about the WRX cat back). I've been running my setup with a protune from EQ tuning for the last 3 years and I've been quite happy. I've never felt the car has lacked for power (for me).
Registered User
Joined: Mar 2006
Posts: 104
From: in Transition
Car Info: 06 Aspen White STI
ah..I have no idea. We're military and my car is still registered in my home state so I haven't had to worry about smog. Also forgot to mention that my setup is quiet. Almost too quiet for some people. It sounds stock and I don't even hear it on the highway.
Last edited by wushunut; May 29, 2009 at 10:20 AM. Reason: quiet
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iTrader: (2)
Joined: Oct 2005
Posts: 2,585
From: Los Altos, CA
Car Info: The Latest From WayneTech.
If you want to stay Cobb Stage 2 - you need an aftermarket DP - that's all there is to it.
Trust me on the Maddad turbo back - quiet and flow efficient, plus it looks stock...ish.
Trust me on the Maddad turbo back - quiet and flow efficient, plus it looks stock...ish.
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