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Anyone here hitting 450-500 RWHP with a single 3" exhaust pipe?

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Old 04-15-2010, 08:53 PM
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Default Anyone here hitting 450-500 RWHP with a single 3" exhaust pipe?

Just like the title says, how many guys here are hitting the 450-500RWHP mark with a single 3" pipe? I'm wondering if with my new headers I should build a 3" y-pipe into a single 3" exhaust pipe OR run true 3" duals. The single pipe is cheaper and easier to work with whereas the dual setup will cost me at least another $500 on top of the y pipe setup. Decisions decisions. I'd rather keep the cost down if I can
Old 04-15-2010, 08:56 PM
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IMO, i would run a 3" into 3.5" y pipe with a straight through muffler. your new headers have a 3" collector,right?
Old 04-15-2010, 09:17 PM
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Yup! 3" collectors will be on the headers
Old 04-15-2010, 09:18 PM
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Flaco went 9's with a single 3 inch exhaust set up
Old 04-15-2010, 09:25 PM
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You could do 3in off the headers then 3.5 after the ypipe should be plenty imo
Old 04-15-2010, 09:28 PM
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i hit 490rwhp with 370/4l80e/mp112/heavy wheels

jba shorties, stock y pipe with cats and magnaflow single 3"
Old 04-15-2010, 09:46 PM
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Originally Posted by Mangled03gmc
Flaco went 9's with a single 3 inch exhaust set up
Yeah but that was through a cutout. You have to remember when a cutout is open you have a 3" hole that exhaust can flow through but some exhaust still flows through the rest of the exhaust.

If it was me Id do 3.5 or 4 after the y, 4 maybe just because you can adapt dmax exhausts for cheap. I bought that summit setup, I dont know if Ill use it or not though.

Im really thinking a nice set of LT headers with 3" ORY pipes merged with the flowmaster collector to 4" with a cutout there then neck it down to attach to a stock catback. Atleast for me the loud *** exhaust gets old.
Old 04-15-2010, 09:50 PM
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Originally Posted by 1slow01Z71
Yeah but that was through a cutout. You have to remember when a cutout is open you have a 3" hole that exhaust can flow through but some exhaust still flows through the rest of the exhaust.

If it was me Id do 3.5 or 4 after the y, 4 maybe just because you can adapt dmax exhausts for cheap. I bought that summit setup, I dont know if Ill use it or not though.

Im really thinking a nice set of LT headers with 3" ORY pipes merged with the flowmaster collector to 4" with a cutout there then neck it down to attach to a stock catback. Atleast for me the loud *** exhaust gets old.
Myabe I misunder stood, I thought he said it was through a full system, not a cut out...
Old 04-15-2010, 09:52 PM
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single 3" exhaust here
Old 04-15-2010, 10:01 PM
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Originally Posted by Mangled03gmc
Myabe I misunder stood, I thought he said it was through a full system, not a cut out...
You talking about lil sis?


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