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Old 01-14-2014, 02:27 PM   #127
Pro Stock John
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Spintechs are chambered at least the ones I've seen over the years. How are the Kooks designed? I would dyno with the mufflers off and on.

In the old 4th gen days we dynoed Flowmaster chambered mufflers on and off, and off the power gain was big.
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Old 01-14-2014, 03:45 PM   #128
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Quote:
Originally Posted by Pro Stock John View Post
Spintechs are chambered at least the ones I've seen over the years. How are the Kooks designed? I would dyno with the mufflers off and on.

In the old 4th gen days we dynoed Flowmaster chambered mufflers on and off, and off the power gain was big.
The Kooks mufflers are straight through with packing. I always liked the sound of a chambered muffler better.
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Old 01-14-2014, 04:06 PM   #129
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Maybe you can dyno all the choices just so see. I"m just saying chambered mufflers might skew the gains.
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PROJECT HEAVY CHEVY
Camaro Now: Mods for the Masses Part I | Part II
13.15@106 1.95 | 100% Stock
12.37@112 1.85 | + Kooks Headers/Cats + 20" 555R + CAI + BW TB + UDP + Tune
12.06@113 1.70 | + CD 3200 + 18" NT05R + RCR Intake + NE OTR + GPI Tune
11.84@115 1.59 | + 3.91s + Race Star 17x7 Fronts
10.90@125 1.47 | + GPI VVT Cam + BW Ported Heads + CD 3800
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Old 01-14-2014, 04:35 PM   #130
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I have always heard chambered mufflers as being the best sounding and loudest. But they are more restrictive than straight through mufflers.
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Old 01-14-2014, 06:08 PM   #131
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I would sacrifice a few ponies to have the sound I'm looking for.
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Old 01-14-2014, 07:59 PM   #132
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Think of all the great info you can share by making a dyno pull with the mufflers, and then with them unhooked.
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PROJECT HEAVY CHEVY
Camaro Now: Mods for the Masses Part I | Part II
13.15@106 1.95 | 100% Stock
12.37@112 1.85 | + Kooks Headers/Cats + 20" 555R + CAI + BW TB + UDP + Tune
12.06@113 1.70 | + CD 3200 + 18" NT05R + RCR Intake + NE OTR + GPI Tune
11.84@115 1.59 | + 3.91s + Race Star 17x7 Fronts
10.90@125 1.47 | + GPI VVT Cam + BW Ported Heads + CD 3800
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