QuiksilvrZ

Researching cutouts when I came across this photo:





of what appears to be a Z06 Ti muffler with the coolest cutout setup I've ever seen. Does anyone know whose car this is on? I'd kill to have this on my car if I could find someone willing to weld Ti and do this good of a job with it.

OneCylinder

That is a nice set-up, looks clean and professionally done.

fisher auto

johnsos30

When I was looking at cutouts I found that same picture. What I ended up doing was purchasing DMH low-profile cut outs and placing them on the 90° band prior to the mufflers. It is still basically the same concept of what you are doing, it just requires less welding.

RedZMonte

I have seen that pic before, I think its a stock muffler but i dont think it is a Ti muffler. making that would not be hard other then finding Titanium flanges to match the cut out.

I think this is a stock Stainless muffler.

S

95wht6spd

They merged into one tip as well. I would just like to be able to swap tips to something like that, but still have two on my Ti system. Looks like they have a cut at end, and a slip fit tip, with tip pipe going into muffler pipes.

Ohcat68

Looks pretty cool, I would dig that

ajrothm

My cutout setup... Not Ti but...you get the idea...











I've since cleaned up and painted all the welds/flanges and it looks much better...I need to get a final pic taken of it now.


Yes this required massive modifications to the trunk that most owners don't want to do...(which I understand..)

Lowrydesign

Funny that you guys bring this up, im actually working on this exact idea with z06 titanium mufflers. I just received the flanges that I had cut out by my local water jet guy. Ill be posting a thread soon, but probably after my deployment that just popped up.

JrRifleCoach

Blue Blood

I think the big question here is why would you need the cut-outs for the Ti bypass? They're barely audible at idle or part throttle.

Lowrydesign

But its not really a bypass any more if the center tips become straight pipes by using 2.5" pipe, hence the reason for turning them off.

Sigforty

For me if you are putting in cutouts you want them before the restriction. The muffler is not the restriction on a modified car. What is the restriction is where under the transmission the pipes go from 3" to 2.5". This applies if you have a setup like LG headers and x-pipe. This is also why LG created the big 3 exhaust. The pulse travel is impacted by the reduction in pipe size. A bad pulse exit will reduce mid range torque. I have some dyno pulls I posted in the past where you can see the peak impact of my cutouts was 5 rwhp. The big impact was the mid range torque I picked up by having a better pulse exit putting them before the 3" to 2.5" reduction.

Blue Blood

Sorry, I was looking at ajrothm's car, thinking he was the OP.

ajrothm

After final adjustment, cleaned up and all flanges/welds painted with Ceramic paint.



I'll track test the cutouts in a few months and see if it's actually worth anything at 900hp...

Lowrydesign

Did you cut the floor out of the rear?

ajrothm

Yes I cut the lower most point of the "tub" out, then built a flat floor pan out of MDF.

As often as I pull the trans and diff, it helped to get rid of the trunk tub. Not to mention it cleans up the underside of car's appearance.

It's not for everyone tho...

NemesisC5

That looks like Tony Mamo's setup he put together many years ago. Tony is a perfectionist on the details of everything he works on. He is head of R&D at Airflow Research "AFR" in case you wanted to contact him. He posts on LS1tech from time to time so you may shoot him a PM there or on here on CF.