4" Sound Performance boost activated cutout

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Nov 22, 2013 | 06:05 PM

#31

Gadgetized

Thread Starter

TECH Junkie

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From: Rochester, NY

That is a pretty nice looking valve. They appear to be out of stock right now with a $139 price tag. Nice find.

Nov 24, 2013 | 08:05 PM

#32

Atomic

I have a gauge for that

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From: Huntsville, AL

Wonder if anyone makes a 5" one...

Nov 24, 2013 | 09:19 PM

#33

Choda

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From: Buffalo NY

Quote:

Originally Posted by GMCtrk

People have made huge power though full 3" exhaust. Don't believe every single thing you read online. Nowadays if you don't have a full 5" exhaust you're screwed. My full 4" exhaust on paper is mouse quiet; in reality it's not. It's still loud but I don't want to restrict my turbo in any way. Problem is, even with 4" diameter, the full length is probably over 10 feet and that in itself.

I agree 100%. I read all over forums that people need huge headers and the biggest dia pipe they can fit underneath the cars. Most of us will never have the motor or truck that needs something like a 5 inch dp or 5 inch exhaust. I kept mine 3 inch because it is plenty for my turbo and power level. I went with the big tailpipe for looks only

The only reason I got an ele cutout is for when I rev the crsp outtra it.

Nov 25, 2013 | 09:33 PM

#34

ShredSled

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From: Michigan

Very interesting!

That thing would be super intimidating with an msd 2step too haha.

Nov 29, 2013 | 03:55 AM

#35

Denali08

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Joined: Dec 2008

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My 3" SP Boost Cutout gate started rattling which is very annoying sound.

When I crawled under the truck and put an adjustable wrench to hold the gate shaft, it stopped. It will go back and rattle once I remove the force of the wrench.

Does anyone know a fix for the valve rattle?