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Old Mar 27, 2010 | 04:07 PM
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ok so im getting ready to buy my mufflers for my exhaust and i need to get your guys opinon on a set up. on which one i will get the most gain. should i go 3in stright off my downpipe to the y then split off to 2 1/2 into the mufflers. should i do all 3in. or should i do 2 1/2 in from the down pipe all the way through.
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Old Mar 27, 2010 | 04:42 PM
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2.5" would probably be the best. 3" all the way back might be too much.
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Old Mar 27, 2010 | 07:54 PM
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2.5 all the way
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Old Mar 27, 2010 | 09:02 PM
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ok thats what i was thinking. i have been looking though and all of the magnaflow exhaust tips only have a inlet of 2.25 not 2.50 so should i go with 2.25?
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Old Mar 27, 2010 | 09:13 PM
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3" all the way.
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Old Mar 27, 2010 | 09:16 PM
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i did 3" from the down pipe and dual 2 1/2" after the split into spintech mufflers i used some dual ss tips. the sound is awsome. picked up power after 4500 but lost power below
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Old Mar 28, 2010 | 02:22 PM
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i used 2 1/2 all the way to the cherry bomb vortex mufflers and reused the stock tips but pushed them out about 3-4 inches sounds awsome not crazy loud but noticable with muscle i get compliments from everyone that heres it o and i deleted the resonator
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Old Mar 28, 2010 | 03:10 PM
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Our factory rear manifold is 2 1/2" so 3" isn't really all that necessary but it does help.
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Old Mar 28, 2010 | 03:20 PM
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Originally Posted by DavidGXP
i did 3" from the down pipe and dual 2 1/2" after the split into spintech mufflers i used some dual ss tips. the sound is awsome. picked up power after 4500 but lost power below
+1

Go with Spintech and never look back.
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Old Mar 29, 2010 | 03:26 AM
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Originally Posted by DavidGXP
Our factory rear manifold is 2 1/2" so 3" isn't really all that necessary but it does help.
interesting....those thorley headers have a 3" outlet though right?
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Old Mar 29, 2010 | 03:52 AM
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Yep you could run 3 from the headers back. The hogan downpipe goes down to 2.5 where it hooks to the cat back. Don't know about the stocker.
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Old Mar 29, 2010 | 06:23 AM
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The stock rear manifold outlet/down pipe exit is only 2 1/2". Headers have a 3" outlet.
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