Dante

is any video comparing two gt3 or RS, one with dundon cat headers one stock, in straight line?

scooteria681

I just installed the GRP center bypass (grahamrahalperfomance.com) today on my MT .2 GT3. It sounds great, and I couldn't be happier. I would echo what Jimmy-D said to the four questions above. The customer service from Graham is second to none. I had some questions about the bypass which he promptly responded to, and he made sure I was completely satisfied with what I was buying. I ended up going with the slightly longer .2 version so the tips stick out slightly past the rear bumper to avoid any melting issues, and I also left the vacuum lines hooked up the the valves for now. I definitely recommend both his business and his product. It both looks and sounds amazing. Hopefully I can get some video clips to post in the near future, but I think it's supposed to snow this weekend here. Im at about 600 miles and up to 6000 rpms in my break in (which is another thread but not here!)

Cheers.

juanpablo046

GT3

Impressive

sechsgang

Ok, now THAT was the damn system I wanted them to come out with for the G-D 991.1...if that works for the 991.1 I'll be ordering that asap.

juanpablo046

It will fit for sure! I would just ask Akrapovic if they recommend it anyway, they test a lot more than just the fitting

drdonger

This would be my ideal exhaust setup. A combo of power and great sound and a valve.

Fabspeed or Dundon race headers with a single pipe instead of a valved dual outlet pipe.

Single non-valved pipe with mini cats installed to it to avoid CEL.

IPE titanium muffler section with valve.

.

BrntRubber

dave w

Will the 991.1 GT3 GMG headers and center pipe fit a 991.2 GT3? I saw some posts earlier in this threat that the dimensions of the center pipe were a "little" different with the .2 being a bit wider perhaps (?). Does anybody know how much the difference is and what about the headers? I have a set of .1's sitting in my garage for a while now and was hoping to drop them on my .2.

djcxxx

I could be mistaken, but the Akrapovic in the video above is very different from the .1 setup. There is no center muffler and the plumbing prior to the side mufflers is also different from their .1 configuration.

sechsgang

I'm curious how different it would be...at minimum that slip on/muffler delete can't be THAT different.

SANDIEGO

juanpablo046

You are correct.

This is the system on the video (center muffler delete):


I guess the central muffler delete is the Slip On Race, they also offer so far:

Evolution Race Header Set (100cpsi + side mufflers delete)
Evolution Header Set (100 cpsi + side mufflers)
Link Pipe Set (side mufflers delete for stock headers to be used with Slip On Race)

So my guess is that on the video we see Slip On Race with Evolution Header Set.



Previous:
Evolution Race


Evolution


Sports Cup Line:


Slip On:

djcxxx

I am very satisfied w/ the GRP, but this new Akrapovic set up looks very interesting indeed. Thanks for the confirmation.

juanpablo046

I ordered one and one of my friends also (Slip On Race), I'll have some material posted as soon as we received them. Should be in june.

If we install more parts woudl be only after we try the Slip On Race alone