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Old 11-02-2013, 07:33 AM   #43
Bat Maro
 
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Quote:
Originally Posted by thahemp View Post
Sure it is. A 3" sounds like heaven on these cars.
+1

my 3" stainless works retro chambered exhaust sounds freakin amazing
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Old 11-02-2013, 09:54 AM   #44
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Im running a modified setup using the stock exhaust, Doug Thorley 1 3/4" Tri Y headers, mid pipes "no cats", deleted the resonator "replaced with straight pipe", and replaced the stock suitcases with flowmaster super 10 race mufflers. Sounds great and shed quite a bit of weight

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Old 11-02-2013, 10:33 AM   #45
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I put down 570 through the stock cat back with muffler delete. I put a 3" cat back on and will go back to the dyno soon.
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Old 11-02-2013, 10:43 AM   #46
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Originally Posted by Sales@JDP View Post
Thanks for the order! You'll have to post up a sound clip and let us know how you like it!

Best regards,

Tyler
888-308-6007
I sure will Tyler thanks again for the great deal.
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Old 11-02-2013, 01:42 PM   #47
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I'd really like to know what the "pro's" think on how much HP a 2.5" cat back is good for? In planning on running either kooks 1 7/8 headers or LG headers. With either high flow cats or off road pipe. Was thinking I would just run a 3" exhaust from either kooks or LG but I'm really loving the sound of the magnaflow 16580 but it only comes in a 2.5" exhaust. I'm planning on making 750rwhp. Think this exhaust will be ok or will it be to restrictive?
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Old 11-02-2013, 01:51 PM   #48
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is this not the most bad A$$ sounding car?

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Old 11-02-2013, 02:29 PM   #49
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Sounds familiar... I have no cats and a dual 2.5 magnaflow with cam and vortech.
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Old 11-02-2013, 03:03 PM   #50
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Sounds familiar... I have no cats and a dual 2.5 magnaflow with cam and vortech.
I'd love to hear what yours sounds like with no cats!!! Video please!!
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Old 11-02-2013, 04:21 PM   #51
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My iPhone sucks on audio.
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2014 GMC CC Z71, 2009 C6 vette (672/639 at the wheel and less than 3300lbs)
2010 Camaro 2ss/rs---SOLD 4/15/14
-654whp with a few cosmetic things, Pfadt suspension, Vortech, CircleD, GPI ss3 vvt bump stick, gears, stuff in between,18" TSW N'rings for drag duty, 20" Forgestar F14s for street.

Thanks to:
Tony@ dv8motoring
rhino@ Gwatney Chevrolet/GPI Jacksonville AR
TCAudio in Benton AR
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Old 11-02-2013, 06:23 PM   #52
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Put your ear buds in. Night and day on my phone and my buddy's.
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Old 11-02-2013, 08:44 PM   #53
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I made a video of my exhaust but its so loud that my phone speaker cancels out alot of the sound to where its really distorted. Even with ear buds in its distorted.

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Old 11-02-2013, 09:48 PM   #54
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Question: Does anyone have a video or a link to a thread that shows before and after dyno testing of a 2.5 > 3 inch exhaust? Because I keep reading people say that it doesn't make a difference. But I have yet to see any hard evidence. Its like someone one day decided to say this and it just caught on.

Having said that, I personally would not use any 2.5 inch exhaust on any application producing more than 500 whp. I don't think a dual 2.5 inch exhaust is enough at that point. You might be able to make X amount of power, but I think upping to a 3 inch at that point would provide worhtwhile gains. But still, I'd like to see some dyno results because word of mouth isn't enough for me...no offense anyone.
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Old 11-03-2013, 06:48 AM   #55
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I went from a 3" MBRP (no bottleneck at the headers, custom full 3") back down to a 2.5" Solo Mach XL to eliminate the deafening drone. While no dyno was done, my 60-100 mph time remained the same at 3.7x seconds (logged with HPTuners scanner) and no boost increase. I'm someplace north of 600 whp at 9 psi.
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Old 11-03-2013, 07:48 AM   #56
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Quote:
Originally Posted by Iam Broke View Post
I went from a 3" MBRP (no bottleneck at the headers, custom full 3") back down to a 2.5" Solo Mach XL to eliminate the deafening drone. While no dyno was done, my 60-100 mph time remained the same at 3.7x seconds (logged with HPTuners scanner) and no boost increase. I'm someplace north of 600 whp at 9 psi.
That's very interesting with that much power as I thought you would have lost some. It could be that the DA was high when you recorded the 3" but low when you recorded the 2.5".
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