Cut outs finally installed!!!

[Donovanl1685]

+1

[SlingShot]

Originally Posted by SPOOKYGUNNER

WHO MAKES THE CUTOUTS? HOW MUCH FOR JUST THE PARTS?

This is what I went with, because they are a low profile. I ordered the dual cut outs and two turn downs.

http://www.pfyc.com/pc/GN5020/CAEXH/...st+Cutout.html

[Ben69]

Originally Posted by SlingShot

This is what I went with, because they are a low profile. I ordered the dual cut outs and two turn downs.

http://www.pfyc.com/pc/GN5020/CAEXH/...st+Cutout.html

What about the solo cat? How much did you pay for that?

[SlingShot]

Originally Posted by Ben69

What about the solo cat? How much did you pay for that?

For the M6 you need the ones for LS3, and for the A6 you use the ones for L99.

http://solo-performance.com/performance-exhaust-system

[cam99]

I would assume you would lose boost with the loss of back pressure on open cut-outs

[Ben69]

675. damn. thats expensive lol
might as well save a little more for headers, no?

[SlingShot]

Originally Posted by cam99

I would assume you would lose boost with the loss of back pressure on open cut-outs

No different than running headers, and there are no losses with them.

Originally Posted by Ben69

675. damn. thats expensive lol
might as well save a little more for headers, no?

Depends on your situation, I didn't want to tune yet due to warranty and didn't want to deal with CEL. The OEM exhaust manifold flows really well, and the restriction is the cats.

[Ben69]

Originally Posted by SlingShot

No different than running headers, and there are no losses with them.



Depends on your situation, I didn't want to tune yet due to warranty and didn't want to deal with CEL. The OEM exhaust manifold flows really well, and the restriction is the cats.

I see.. What do you think would be better? Headers with cat delete. or Headers with high flow cats? not bashing or anything, just trying to learn a lil more

[SlingShot]

Originally Posted by Ben69

I see.. What do you think would be better? Headers with cat delete. or Headers with high flow cats? not bashing or anything, just trying to learn a lil more

With the headers either way you will get a CEL, in your case probably just go with cat delete.

[SPOOKYGUNNER]

Originally Posted by SlingShot

This is what I went with, because they are a low profile. I ordered the dual cut outs and two turn downs.

http://www.pfyc.com/pc/GN5020/CAEXH/...st+Cutout.html

THANKS FOR THE INFO

[thespymaster]

I will post video later, but had the QTP's installed last week!

Stage III build with American Racing headers and & QTP's really sounds like the gates of hell opening up, when you lay on it with the QTP's open!

[SlingShot]

Holy crap Kelly ... Bet that really sounds like a beast from hell !!!

[silverds]

Originally Posted by cam99

I would assume you would lose boost with the loss of back pressure on open cut-outs

In a four stroke engine cycle, intake, compression, ignition and exhaust, I don't understand how it is perceived that back pressure caused by restriction in the exhaust system has any positive affect on intake charge/boost during the intake stroke.

Rather, it seems, you would want negative back pressure (vacuum) in the overlap between the exhaust stroke and intake stroke so that it helps suck in more clean, unburnt air into the cylinder before the exhaust valve fully closes. It would seem that any positive back pressure in the exhaust stroke would either limit the volume of clean air in the charge or worse, allow burnt air/fuel back into the cylinder where it will reduce the quality of the charge.

[serviceguy]

Where did you purchase your cut outs? seems like a good place to locate them. Does the muffler shop have to cut a hole in the existing pipe to weld an adapter plate in ?