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Old 04-08-2012, 07:17 PM   #1
SSmegatwinky
 
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Horse Power Gain from AFTER MARKET intake and mufflers??

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2010 SS. Hotchkis Lowering Springs, Hotchkis Strut Tower Brace, Hotchkis Sport Adjustable Sway Bars, Granatelli Motorsports Adjustable Toe Rods, Flowmaster Cat Back Exhaust, Cold Air Inductions Intake, Koni front and rear shocks/struts.

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Old 04-08-2012, 07:19 PM   #2
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They say the intake will add around 14 hp. More with scoop and tune. Ur mufflers didn't add any. Even full exhaust systems at most would add just 2-5 hp if any at all


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Old 04-08-2012, 07:19 PM   #3
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Now add headers and that's a different story


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Old 05-17-2012, 03:47 PM   #4
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oh ok thanks man
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Old 05-17-2012, 03:55 PM   #5
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Everything after the cats is purely for sound.
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Old 05-17-2012, 04:28 PM   #6
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Everything after the cats is purely for sound.
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Old 05-17-2012, 04:37 PM   #7
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Just an intake and an axle back lets say? Not too much. All the power really is in the headers and the tune to really make everything work together and make everything efficient, if that makes sense. Axle backs are really for sound if you ask me, cat backs you will see a small increase in power, but if you get a cat back and an intake lets say, you'll of course see more gain than you would with an axle back.
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Old 05-17-2012, 04:46 PM   #8
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From what I've read on here, the biggest restriction in our exhaust is the cats. Although, the L99 probably is a bit more restricted due to how it's designed to keep AFM quiet.
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Old 05-17-2012, 05:33 PM   #9
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From what I've read on here, the biggest restriction in our exhaust is the cats. Although, the L99 probably is a bit more restricted due to how it's designed to keep AFM quiet.
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Old 05-17-2012, 06:21 PM   #10
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Like most have said, anything after the cats won't give you much of a power increase, but more just for sound. If you are looking to get an increase in power, I would recommend long tube headers. Most people are seeing ~35whp gain after install.
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Old 05-17-2012, 09:07 PM   #11
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0-10 on dyno 20+ with ass dyno and sound but nothing substantial unless you get rid of restrictive cats.
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