stock axleback on modded 2006 sti?
#1
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Thread Starter
iTrader: (1)
Join Date: Oct 2011
Location: Cupertino, CA
Posts: 40
Car Info: 2006 aspen white sti
stock axleback on modded 2006 sti?
Hey guys, so I just bought a 2006 STI with the following mods:
-forged pistons and slight bore
-AEM CAI
-FMIC
-garret gt30r
-tial 44mm EWG w/ dumptube
-750cc RC injectors
-aftermarket fuel rails/lines
-invidia DP
-tomei EL headers
-HKS carbon ti catback
It currently puts out 316.5 whp.
I want to run a stock STI axleback permanently because I hate being loud and obnoxious.
Is this possible without jeopardizing the reliability of my car?
Thanks in advance!
-forged pistons and slight bore
-AEM CAI
-FMIC
-garret gt30r
-tial 44mm EWG w/ dumptube
-750cc RC injectors
-aftermarket fuel rails/lines
-invidia DP
-tomei EL headers
-HKS carbon ti catback
It currently puts out 316.5 whp.
I want to run a stock STI axleback permanently because I hate being loud and obnoxious.
Is this possible without jeopardizing the reliability of my car?
Thanks in advance!
#2
Registered User
iTrader: (7)
Join Date: Mar 2011
Location: The Bay Area
Posts: 2,572
Car Info: 2006 STI
Might I suggest going with 3 inch piping all the way back to the stock STI muffler. I have heard of others doing this. You can also pick up a quiet full 3inch cat back that still allows your built motor to exhale like it should but maintain a quiet and stock appearance.
You should take a listen to my exhaust it might fit your needs.
You should take a listen to my exhaust it might fit your needs.
#5
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Thread Starter
iTrader: (1)
Join Date: Oct 2011
Location: Cupertino, CA
Posts: 40
Car Info: 2006 aspen white sti
Don't care too much about hp numbers, I just don't want it to blow up my engine or anything. All the piping is 3", except the sti muffler, which would be 2.5".
Am I able to do the swap without a tune?
Would it increase my EGTs and burn out my o2 sensors?
Am I able to do the swap without a tune?
Would it increase my EGTs and burn out my o2 sensors?
#6
Registered User
iTrader: (21)
You have a built motor and a pro tune, why would it blow up? Seriously, I would not run a 2.5" exhaust, you will choke the **** out of it. Any 3" exhaust with a non fart cannon exhaust will be fairly quiet during normal driving. I'd consider the borla hush or maddad whisper if you want quiet. You can just swap anothet 3" catback on without retuning. Its just my opinion, its your car.
#10
Nobody likes the tuna here
iTrader: (51)
I highly doubt using the stock can is going to effect it to 30whp, our 2.5inch tapers to like 2" at the end of our legacy's negligible difference on a dyno, ask Mike at GST he can give you a straight up answer on that one. If stock STi is that restrictive or not. On top I highly doubt a retune will be needed unless its a very agressive tune. If anything run a midpipe resonated that mates up to your stock can.
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