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Am I missing out on power?

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Old Apr 28, 2010, 03:47 PM
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Am I missing out on power?
My car currently has a Ebay O2 housing, Helix DP, Mil Spec 100 cell cat (theres no emissions here in Iowa) and a Greddy SP2 exhaust. Im wondering if I were to get a new turbo back/cat back I could make more power than the Greddy exhaust? If so is it worth the money to upgrade?
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Old Apr 28, 2010, 05:14 PM
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Since there's no emission why not delete the cat go with a test pipe that will make the biggest difference in your exhaust system.
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Old Apr 28, 2010, 05:16 PM
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The only way you would gain any power increase would be to run a test pipe instead of a hfc. I do not find it worth the money to get a new TBE.
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Old Apr 28, 2010, 05:16 PM
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A new catback would probably not make too much difference. +1 on test pipe
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Old Apr 28, 2010, 05:16 PM
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I'd put a full test pipe on it. The SP2 is restrictive inside of the resonator and the muffler, but it is nice and quiet. I have it myself and refuse to give up the sound for a lighter and possibly better flowing exhaust.
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Old Apr 28, 2010, 05:22 PM
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just get a test pipe, dont get rid of a nice quiet exhaust for something loud and 5 extra hp.
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Old Apr 28, 2010, 05:22 PM
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if you put the wing back on, you'll gain at least 33% more torque
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Old Apr 28, 2010, 05:46 PM
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Originally Posted by ODUB
if you put the wing back on, you'll gain at least 33% more torque
Thanks for such an awesome Informational post. I wasn't asking if I should get a 4 inch tip super cool jdm exhaust yo! I'm just trying to find out if it's a good option to change my exhaust setup. Seems test pipe is the general answer thanks guys. I really like the sound of my SP2 it's nice and quiet. I appreciate not causing a scene with a loud exhaust.
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Old Apr 28, 2010, 09:13 PM
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Test pipe...and a good tune. Cat backs (in general) are all about the same.
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Old Apr 28, 2010, 09:41 PM
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Yeah put that wing back on your RS.
I would switch out your cams over test pipe. but you already know that.
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Old Apr 29, 2010, 07:51 AM
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Yeah Cams are on the list, I need to get with Trevor to get some IC piping made as soon as I get that small battery
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Old Apr 29, 2010, 09:51 AM
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Originally Posted by boostd4
test pipe...and a good tune. Cat backs (in general) are all about the same.
+1
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Old Apr 29, 2010, 10:02 AM
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With the difference you would spend on another exhaust why not get a MBC/EBC and a vibrant+filter setup (or K&N drop in). $200 or less....
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Old Apr 29, 2010, 10:05 AM
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Originally Posted by SavEVOIX
With the difference you would spend on another exhaust why not get a MBC/EBC and a vibrant+filter setup (or K&N drop in). $200 or less....
I already have a EBC and a Perrin filter, And a handfull of other supporting mods.
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Old Apr 29, 2010, 10:28 AM
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I have a greddy SP2 exhaust myself. It is very quiet but is a bit restrictive. It is not a true 3 inch exhaust and necks down in a couple of places. I remember reading a thread a while back where someone changed out the SP2 for a true 3 inch exhaust and gained 16 whp.
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