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True duals tomorrow.

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Old 09-30-2007, 04:11 PM
  #11  
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Originally Posted by kw05silverado
dual 3" will hurt u, but dual 2.5" won't.I'm almost thinking about backing out now and buying pacesetter headers and y pipe? what do u guys think? I could put one magnaflow on and have a single 3" pipe coming infront of the rear passager tire.
That's the setup I have: LTs, cats, single-in/single-out 3" Magnaflow with a single 3" exit pipe. I'm another one who thinks you'll 'feel' the loss of low-end. The 1 3/4" headers on mine are too big for my setup, IMO.
Old 09-30-2007, 04:16 PM
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Yea im not going to run any cats on mine. so im looking for the biggest magnaflow i can find.
Old 09-30-2007, 05:13 PM
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Dual 2.5's is over kill for that 5.3.....Anything more than a single 3'' is a waste of bottom end on a 400Hp small block. Build to compliment Torque and HP will follow, this is a heavy truck.... Every 1/10th you gain in your 60' is worth 2/10th's at the end of the 1/4...I can promise you that dual 2.5 are not going to help out your 60' times....

Dual 2.25's or a single 3'' would make your truck a pleasure to drive around town and a winner at the track!

Last edited by markislive78; 09-30-2007 at 05:29 PM.
Old 09-30-2007, 05:36 PM
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Thanks I will definitly be doing a 3" single. I just dont want it to be loud.
Old 09-30-2007, 08:42 PM
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Originally Posted by kw05silverado
Thanks I will definitly be doing a 3" single. I just dont want it to be loud.
Omitting the cats is gonna make it loud. I don't know if the big Magnaflow can quiet it down enough for you but hopefully it will.
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