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2005 FSTi SG9 FSTi 6 Speed
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351 Posts
Discussion Starter #1
so i was running the TXS stealth back catted of course (4in-3in-2.5in) and have always run 11psi, i just swapped to a full 3in angled catless tb and the gauge is reading 14-15psi, she feels way more responsive and ready to pounce, no lag feel like my old tb....is this common? I know the freeing up by catless helps but never heard of more boost. Thanks

Chris
 

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2004 Subaru FXT MT
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1,841 Posts
I would have expected boost to stay the same or drop off a bit. Less backpressure on the wastegate means it may crack open. Maybe your old exhaust setup wasn't as restrictive as you thought:)...
 

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Registered
2005 FSTi SG9 FSTi 6 Speed
Joined
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351 Posts
Discussion Starter #3
yeah, its seems all fingers are pointing to boost creep, my creep is well under the danger area so i guess i am gonna run with it until can get a fix, just lay of the throttle a bit, also i am loking to get a different catback, this one is a bit loud
 
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