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Borla XR-1 with a cutout

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Old Dec 8, 2008 | 11:50 AM
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Default Borla XR-1 with a cutout

I have longtubes, TSP ORY, and a Borla XR-1 muffler in place of my old SLP Loudmouth setup. I also cut where the 3" pipe merges to two 2.5" pipes after the axle.

Would a QTP cutout after the y-pipe help? Keep in mind I have a reverse split cam. MY current understanding is that my XR-1 muffler flows pretty well... My last dyno run was 387 SAE, 395 uncorrected with the original SLP setup and a looser converter. I'd like to hit right at or near 400hp with the tighter converter and new exhaust.

Thanks!
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Old Dec 8, 2008 | 02:24 PM
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Hmmm.... I didn't think a few opinions would be so difficult. lol One would assume it will make more power with the cutout. But.... Is it worth it for the $170-200, especially aready having the Borla muffler.
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Old Dec 8, 2008 | 08:17 PM
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It's not worth the money,won't see much of a gain if any. Plus alot of people have had problems with the QTP cutouts(just saying).
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Old Dec 8, 2008 | 08:37 PM
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man, im thinking about replacing my off road y pipe and magnaflow catback and running the borla XR1 right off the header. im curious on how loud that would be and see if it makes any noticeable gains.
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Old Dec 9, 2008 | 10:35 AM
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thanks guys
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