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tpunx99GSX
06-23-2006, 02:53 PM
http://atpturbo.com/root/releases/release091004.htm
Just saw this while looking at couplers. Lately i had been thinking about a cutout. this may be a good option.
A//// Guy
06-23-2006, 03:07 PM
Repost, yea it looks ok except airflow does not like 90 Degree angles ;) So thats a shitty design.

A cutout with a switch works better so you dont open it everytime you boost around town.
blageo23
06-23-2006, 03:16 PM
My friend has a BMW with dual tip exhaust and one of the tips has an actuator in it and at WOT it opens up. wierd BMW crap. But yah except for the 90 degree it would be alright.
Kevin 1G Drummer
06-23-2006, 06:24 PM
My bike has something similar to that, only it doesn't dump to the atmosphere. The way that works is depending on throttle position, engine rpm, and gear position it opens and closes a butterfly valve in the pipe right behind the collector. It's pretty sweet.
dumb_ricer
06-24-2006, 12:38 AM
The things are awesome.

The way I look at it is you get another manual boost controller and you can set how many pounds of boost it needs to see before it opens the cutout. That way around town you wont have to deal with it.
Shane55113
06-24-2006, 02:42 AM
the whole idea is flawed, basically its a controlled exhaust leak. Leaks don't free up hp. If you were abel to open that up and close the other pipe off that would be a better idea but then you'd have uncatalyzed exhaust floating into your cabin.
dumb_ricer
06-24-2006, 06:41 AM
Wierd, I wonder why all the LS1 guys make 9-15whp when they have cutouts opened then.
1ViciousGSX
06-24-2006, 07:24 AM
the whole idea is flawed, basically its a controlled exhaust leak. Leaks don't free up hp.Leaks don't free up hp, but reducing backpressure does.
94talonawd
06-25-2006, 11:40 PM
I have a JC Whitney in-dash manual cut-out. Works ok, it kindof leaks when closed though, not too noticable. And it did help a lot. Its on my stock exhaust in the middle of my downpipe. Im neck to neck with a stock 3/S tt when I have it opened, but when it is closed, I slowly get walked.
rst95eclipse
06-25-2006, 11:54 PM
Electric cutout is the way to go. It would just get too old having it open every time you step on it. Having the joys of driving being cutout, such as having a convo with that special passenger or listening to your favorite Tool melody would be no more. You would get noticed by undo attention (i.e. theives and cops) and get singled out in one way or another. Keep it lo-pro. Again, I say, electric cutout.