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***Sound Performance Boost Activated Exhaust Cutout Results!!! VIDEO INSIDE

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Old 03-20-2010, 11:04 AM
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Reid@SP
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Default ***Sound Performance Boost Activated Exhaust Cutout Results!!! VIDEO INSIDE

I just finished up the video for the results of our SP Boost Activated Exhaust Cutout and wanted to share for everyone who will be waking up in a couple of hours!!

Sound Performance Boost Activated Exhaust Cutout Results!!!

Mods:

SP Single turbo kit
GT4294 Journal bearing .9 a/r
SP Long Tube Race header (now standard on all SP turbo kits)
SP Quick Spool Valve
SP 4" Downpipe/midpipe
SP Boost Activated Exhaust Cutout
Top Secret Titanium exhaust
SP400 Stage 2 transmission
ProEFI 128 Standalone

Results:

At only 17psi, we are pleased to report a 55whp increase with our Boost Cutout!!! It must be noted that the power potential is directly proportional to boost output and will increase with every psi added. Not only do you get more top end power, but you can have a quieter exhaust on the street and the screaming top end power when you need it!!









Enjoy!

http://www.youtube.com/watch?v=mvCl-v_AzLE

Reid
Old 03-20-2010, 11:22 AM
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Goo$e
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Interesting...
Old 03-20-2010, 12:01 PM
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XKR
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How easy would it be for It to be installed on my setup???And how much???
Old 03-20-2010, 01:12 PM
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djamps
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Is that a fuel line next to the outlet?
Old 03-20-2010, 01:28 PM
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duro78
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very nice but when cut out the pipe is directly in the middle of the car
Old 03-20-2010, 01:43 PM
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dutchboy
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Originally Posted by XKR
How easy would it be for It to be installed on my setup???And how much???
Mike, this is a very easy thing to setup on your car. I have them on my G35. My car is at Forged right now if you want to get a look at them. If the car is complete when you are there, feel free to take it for a spin so you can try them out for yourself. They are nice and quiet when closed, but once you get a little over 4 or 5psi, they start to open and get real loud.
Old 03-20-2010, 07:25 PM
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XKR
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Originally Posted by dutchboy
Mike, this is a very easy thing to setup on your car. I have them on my G35. My car is at Forged right now if you want to get a look at them. If the car is complete when you are there, feel free to take it for a spin so you can try them out for yourself. They are nice and quiet when closed, but once you get a little over 4 or 5psi, they start to open and get real loud.
Kool... Thanks... I will check it out.
Old 03-20-2010, 07:49 PM
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rrmedicx
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Very impressive!!! 55rwhp at same boost is NO JOKE!!
Any pics of this done to a TT set-up? Would this be best applied 1 to each downpipe? So for TT app's you would need 2?
Old 03-20-2010, 07:54 PM
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JAM3Z
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That video would have been better without the gay music, you can barely hear the car.

Last edited by JAM3Z; 03-20-2010 at 10:09 PM.
Old 03-20-2010, 08:54 PM
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boostedmaxima
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Impressive for sure. I think I saw a thread on the net one time where atp turbo used to sell boost activated cutouts but discontinued them, I'd rather have one of these than an electric one.

Last edited by boostedmaxima; 03-20-2010 at 08:58 PM.
Old 03-21-2010, 06:33 AM
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Elperuano
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Originally Posted by dutchboy
Mike, this is a very easy thing to setup on your car. I have them on my G35. My car is at Forged right now if you want to get a look at them. If the car is complete when you are there, feel free to take it for a spin so you can try them out for yourself. They are nice and quiet when closed, but once you get a little over 4 or 5psi, they start to open and get real loud.
hey can i take it for a spin too?
Old 03-21-2010, 07:33 AM
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str8dum1
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looks like you bottleneck from a 4" exhaust to a 2" exhaust.

Why not put a dyno with a 4" turbo back exhaust/muffler and see what the gains are, not one where you are choking the heck out of the system.
Old 03-21-2010, 07:54 AM
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SoundPerformance
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Originally Posted by str8dum1
looks like you bottleneck from a 4" exhaust to a 2" exhaust.

Why not put a dyno with a 4" turbo back exhaust/muffler and see what the gains are, not one where you are choking the heck out of the system.

Actually the exhaust is a 3.5" so it does neck down from 4".


The idea of the cutout is that we now dont have to run those annoyingly loud exhausts all day. You can even run the stock exhaust and be nice and quiet and still make 1000 HP !!!
Old 03-21-2010, 07:56 AM
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Originally Posted by rrmedicx
Very impressive!!! 55rwhp at same boost is NO JOKE!!
Any pics of this done to a TT set-up? Would this be best applied 1 to each downpipe? So for TT app's you would need 2?

Actually we did a pair on a G35 2 weeks ago. The car made over 600 RWHP on the little APS kit on pump gas.
Old 03-21-2010, 08:11 AM
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rrmedicx
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I'd like to see that. /\ /\ /\
Old 03-21-2010, 08:34 AM
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Glex25
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Originally Posted by SoundPerformance
Actually we did a pair on a G35 2 weeks ago. The car made over 600 RWHP on the little APS kit on pump gas.
How much boost?
Any work on the heads?Cams?
Any type of spray?
What was it making before the cutouts?
Old 03-22-2010, 07:42 PM
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Reid@SP
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That car was on 14psi with cams. No spray. We were on a crunch and couldn't do back to back runs with it.

Reid
Old 03-23-2010, 08:00 AM
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athensgls
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wow 600whp on 14 psi is phenomenal
Old 03-23-2010, 08:28 AM
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GreenGoblin
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What kind of timing are you running to make roughly 25+ hp per lbs of boost?
Old 03-23-2010, 08:33 AM
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thom000001
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If Larry cracked 14* max timing on pump gas I'd be surprised lol....

Tom

Originally Posted by GreenGoblin
What kind of timing are you running to make
roughly 25+ hp per lbs of boost?


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