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09-01-2011, 06:11 PM
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#43 |
     Drives: 2015 ZL1 Join Date: Aug 2011
Location: California
Posts: 1,731
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I know right? I would buy them just cuz they look cool. I wonder if they make the exhaust louder?
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09-01-2011, 06:45 PM
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#44 |
      
Drives: 2012 ZL1 - #670 Join Date: Jun 2009
Location: Seminole, Fl.
Posts: 8,009
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I went with the DT shorties, and they made a decent change in sound and added some low end feel to the car.
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09-01-2011, 06:50 PM
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#45 |
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As I posted long ago, the BBK stainless steel shorties I installed on my LS3 Camaro made a SOP difference in the 3K to 6K rpm range. The tone was slightly deeper with the BBK shorties than the stock exhaust manifolds. This was through the stock, 4 - 600 cel cats midpipes. For a short time I installed JBA midpipes with 2 - 200 cel cats in place of the, 4 - 600 cel cats stock midpipes behind the BBK shorties and again there was another SOP increase in power from 3K to 6K rpm range AND a louder exhaust note. Car was never dynoed so how much the SOP difference was in numbers I cannot say but it was noticable. Upside is the shorties with or without the JBA or Solo high flow midpipes seem to run CEL free for 99% of the folks thus not requiring a tune although I'm sure a tune would net further gains. I've since gone to ARH LT's and HF cats and to be honest, cannot discern much of a difference in the SOP feel over my current setup and when I ran BBK shorties and JBA HF mid pipes, both in untuned states. I'm sure a dyno would tip the scales to the LT's by a decent margin, I'm just reporting what my butt meter feels. No doubt tuned LT's with HF cats will out run shorties with HF cats.
Ed M.
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RJT 2SS/RS, AAM 3.70's, MTI Sway Bars, Shifter, SS brake lines ZLI calipers, rotors/pads BMR Trailing & Toe Arms, rear cradle/diff bushes, Pedders XA's, Camber/Toe eccentrics, Radius arm inserts, GTO clutch reservoir, LS9 cam, Comp valve springs, Melling 10296 oil pump, CR5 timing chain, LS6 damper, CAI Cold Air Intake, ARH LT headers, HF cats, GMPP axle back, Elite Eng Catch Can, Black ZL1 20x10 & 2011 whls 285/35/20 & 305/35/20 General G-Max RS, 2011 Convertible spoiler, 1LE front spoiler, Lloyd "SS" Floor Mats, GM Camaro Trunk Mat, wrapped console, hand brake lever, Grant steering whl.
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09-01-2011, 07:33 PM
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#46 |
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Drives: 2015 ZL1 Join Date: Aug 2011
Location: California
Posts: 1,731
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Im sure the longtubes are better but since I have 99,000 miles left on my power train warranty I think im going shortys, for now anyway. lol.
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06-01-2021, 01:11 AM
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#47 |
 
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Curious if anyone ever got dyno numbers stock vs bbk shorties without hf cats and no tune vs shorties with hf cats no tune vs shorties with hf cats and a tune
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06-01-2021, 07:21 AM
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#48 | |
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Started#gottalovethatblue
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Quote:
The dyno curve has disappeared, but the second post shows the loss of shorty headers on the car.
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