First few mods - Subaru WRX Forum
 
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post #1 of 10 Old 01-19-2012, 02:02 PM Thread Starter
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First few mods

Hey all so I just had a few questions as spring starts to roll around and I look into investing a few more dollars into my '12 WRX.

So far I have

AEM CAI (installed - waiting on tune from Cobb [no side tangent lecture ###])
TXS Hybrid BOV (on hand)
Cobb AP (waiting for 2012 WRX + AEM CAI map)

and when spring rolls around I was interested in doing the Cobb AP Stage 2 Tune with a Turbo back exhaust in addition to my CAI. For the turbo back exhaust I was thinking

Invidia Downpipe - Invidia Downpipe Catted Divorced Wastegate Subaru Models (inc. 2008-2012 WRX / STI) at RallySportDirect.com

Invidia CBE (single exit) - Invidia Titanium Tip Racing Cat Back Exhaust Single Exit Subaru WRX Sedan 2008-2012 / STI Sedan 2011-2012 at RallySportDirect.com

My question is will I need any sort of gaskets or have fitment issues with an otherwise stock turbo and etc. Oh and I wanted to have the same brand DP as CBE so I stuck with Invidia; however, the Cobb DP is bellmouth instead of Divorced Wastegate. Other than fitment is there a significant benefit to using one over the other?

What would you guys recommend (styling choices aside lol) for a TBE to go along w/ the Cobb AP Stage 2 93 Octane Tune?

EDIT: I am going with a Catted DP for emissions (just FYI)

Thanks,
Thepants
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post #2 of 10 Old 01-19-2012, 02:25 PM
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You want the bellmounth or you could save the cash and get the divorced one cut.

Any catback would be ok (not too sure on PERFECT fitment but it's almost all for sound at that point)

As far as the difference, until you get into the bigger turbo's and oversized wastegates it will not make a difference whatsoever.

"They" also say, divorced is quieter, but I haven't been able to hear the difference.

Paul
2002 WRX Sold
2007 WRX Sold
2007 STi totaled
2007 Foz XT sold
2007 MS3
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post #3 of 10 Old 01-19-2012, 02:27 PM Thread Starter
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So say I got the Cobb DP (Bellmouth Design) and the Invidia CBE (single exit) I wouldn't need any sort of gaskets to fit it all up to an otherwise stock setup?
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post #4 of 10 Old 01-19-2012, 03:11 PM
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Wouldn't think so. I will say that the COBB DP tapers to 2.5" and your CB is a true 3", so the catback SHOULD come with an adapter. If not, Magnaflow makes one I believe.

I had a COBB DP and I reused the stock donut gasket and spring bolts to a N1 style fart cannon CBE(2007's). Yours is a dual exhaust, isn't it?

Then again, the 12's may be a little different. But I know the exhaust is the same from the 11's.

Paul
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2007 WRX Sold
2007 STi totaled
2007 Foz XT sold
2007 MS3
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post #5 of 10 Old 01-19-2012, 04:06 PM Thread Starter
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My stock exhaust is a dual exhaust. The catback is a single exit true 3" exhaust. So if I got the CB and the Cobb DP, my CB should come with the adapter for the 2.5" to 3"? Just to make sure I have all that straight lol
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post #6 of 10 Old 01-19-2012, 09:41 PM
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Im in the habit (as many others) to use new stuff with new stuff. In other words have new gaskets on hand and ready just in case one tears or something along those lines.

Joshua
"2007 WRX- PPG'd, 20G- Tim Bailey tuned
Stage 2 2005 WRX
Cobbtuning.com"
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post #7 of 10 Old 01-20-2012, 06:56 AM
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You would have to call on the CBE to confirm, but I do know a couple brands do this.

Actually, I'm in the same boat as you are... Looking for a DP to mate to my CBE.

When I did my COBB DP on the past 2 cars the CBE mated up to the DP with the use of springbolts and the stock donut gasket.

Paul
2002 WRX Sold
2007 WRX Sold
2007 STi totaled
2007 Foz XT sold
2007 MS3
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post #8 of 10 Old 01-20-2012, 08:46 AM Thread Starter
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Quote:
Originally Posted by newtothegame View Post
Im in the habit (as many others) to use new stuff with new stuff. In other words have new gaskets on hand and ready just in case one tears or something along those lines.
In that vein, I wanted to ask. Since I'm pretty new and still learning everything I can, could you point me in the right direction for new gaskets that I could buy along w/ the DP and CBE. I typically have been using Rallysportdirect.com and would like to bundle it all for the free shipping :-D . How many/ what kind of gaskets do I need? A link to rallysportdirect or just the name of the gaskets would be very much appreciated haha

Thanks again for all your help,
Thepants
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post #9 of 10 Old 01-20-2012, 09:51 AM Thread Starter
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Oh and do the Springbolts come w/ the stock setup and/or the new CBE or do I need to buy those separately?
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post #10 of 10 Old 01-20-2012, 11:29 AM
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Springbolts should be on your car already (if they haven't changed it). Also, your factory gaskets should be fine since it's still new.

Some catbacks will require you to use THEIR bolts.... As spring bolts are a PITA sometimes on older cars.

Might wanna get under the car beforehand and take a look around.

Paul
2002 WRX Sold
2007 WRX Sold
2007 STi totaled
2007 Foz XT sold
2007 MS3
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