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09-01-2011, 05:11 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, 05:45 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, 05:50 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 w/HF cats, GMPP touring axle back, Elite Engineering Catch Can, Forgeline 20x9.5 & 20x11 DS3 whls, 275/40/20 & 315/35/20 tires, 2011 Convertible spoiler, 1LE front spoiler, Lloyd "SS" Floor Mats, GM Camaro Trunk Mat, wrapped console & Grant steering wheel.
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09-01-2011, 06:33 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, 12:11 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, 06:21 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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