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#11 Old 11-21-2012, 10:44 AM
Moebius
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Not true...
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#12 Old 11-21-2012, 11:08 AM
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Quote:
Originally Posted by Moebius View Post
Not true...
To what?

2007 sublime #0448 of 1500

K&N cai , Diablosport Intune, 180 Tstat. Flowmaster American Thunder. more mods to come
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#13 Old 11-21-2012, 12:12 PM
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The misnomer that the OEM manifolds are as restrictive as people wish to make them out to be.

Again - if the (many) variables are controlled that can add or subtract (easily) 20 HP/TQ on the dyno without(!) changing a blessed thing, and all those end-users out there who are buying (literally) into the purported gains found out just how small the gains (or losses) are...there would be a lot of pissed off people.

Remember each cylinder is firing sequentially...in the case of shortie headers the very same bottle neck just happens to be a foot or so further downstream when compared to OEM manifolds.

The same thing can be said about machined throttle bodies that retain the OEM actuating valve (no HP/TQ gains over the OEM units).

It really is unfortunate the amount of online BS that gets put forth as gospel (for example, dyno sheets) and the unspecting buyer ultimately gets taken...

Last edited by Moebius; 11-26-2012 at 03:19 PM.
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#14 Old 12-03-2012, 01:19 PM
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so are you saying that aftermarket headers offer no gains over stock manifold?
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#15 Old 12-03-2012, 04:39 PM
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As one of the first to get a dyno tune with a predator, I invested in Mopar Longtubes and hi-flo's...Sounded great..nada on the dyno...stock exhaust with a good cat-bac showed the same results, unless you are going to do engine surgery, headers are not needed..


2006 Top Banana #3033-4000..Arrington Heads and Crazy Spartan Cam..LSA114.Mopar CAI, Mopar LT's w/Hi-flo's ..Mopar/Borla 125 Cat-bac.Custom Dyno-tuned by Brent at DTP Racing..370rwhp..380rwtqe..QB oil..Aces Fuel..P/S additive. VMP 13.491@103.48 2.055 60'
2006 INFERNO RED SRT8..Mopar CAI 180stat..Custom Tuned by BRENT at DTP..402rwhp..398rwtqe
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http://www.hr-mopar.com/...http://www.midatlanticmodernmopars.com
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#16 Old 12-03-2012, 06:11 PM
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^^^^ agree with zoomzoom1

Gone but Not Forgotten 2006 Go-Mango Daytona 1-11-13

Current 2012 SRT8 Challenger 392
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#17 Old 12-03-2012, 09:20 PM
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Loved putting the Mopar LT's (Mid Really) on my 5.7 unfortunately never tested any actual differences...Hearing each cylinder fire the way tubes separate the sound and the overall tone change makes getting them so worth it IMO!! Plus the OEM mainifolds really are pathetic regardless how little they interfere with air flow - they should have at least done made em sexy like SRT did

Former owner of an'06 RTw/R&T: Headers, 1st Love.
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#18 Old 12-05-2012, 04:45 PM
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well that helps alot , but still deciding if i want to get some or not
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#19 Old 12-05-2012, 05:08 PM
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I would go with a set of hi-flo cats and the Borla extreme or Corsa for the sound if you want to invest...
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#20 Old 12-05-2012, 06:14 PM
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heres a question I been wondering, if I get headers for my 5.7 right now, and later upgrade to a 5.7 based 392 stroker, can I use those headers on that engine? Same question with heads really.. I'm gonna be in the market for a build motor soon and wantin to know what I can transfer over or what I'd need to sell.
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