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2006 Forester XT 6MT 07 STI 6MT - Complete 5x114 drivetrain swap
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67 Posts
Discussion Starter #1
I just ordered a Stromung catback for my 2006 FXT. Scott at Stromung said I can just bolt it up to my stock DP. If I do that, will I need a tune? Is there an OTS Cobb Accessport map I can use?
 

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Premium Member
2017 VW Golf SportWagen 5MT
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10,786 Posts
Nope, no tune. It won't change much other than the sound, it may weigh less too.

Stan
 

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Registered
2006 Forester XT 6MT 07 STI 6MT - Complete 5x114 drivetrain swap
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67 Posts
Discussion Starter #3
Even if the catback is 3" compared to the stock 2.5"?
 

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Premium Member
2017 VW Golf SportWagen 5MT
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10,786 Posts
With stock downpipe and turbo you won't see much difference. I have a tuned VF43 and can't really tell the difference in spool and power between STi catback and 3" MadDad. If there is a difference, it may be 5-10whp up top, which you won't notice. My opinion only of course, I'm not a tuner and don't have a dyno to prove this (but my tuner does :icon_biggrin:).

Stan
 
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