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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!)
Akrapovic just published the products for 991.2 GT3, I’ve been told the Slip On Race + Tail Pipes is a center muffler delete (Edit: actually you can see it in this instagram link along with the rest of the full system)
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.
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.
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.
I'm curious how different it would be...at minimum that slip on/muffler delete can't be THAT different.
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.
I just had one installed on my GT3 .2. Graham Rahal had it shipped out overnight to CA and had it installed at HG Performance today. It was great working with such professionals. The fit and finish is top notch. The sound is incredible. Louder and deeper but not overwhelming. No drone just sweet music. I’m one happy guy.
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.
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.