running two different setups on both my GTM cars. For the G37 we are running GTM 3" dual and for my 370z we are running the GTM 3" Quad. Both are EXCELLENT EXHAUSTS!!! The Quad if you can afford it is AMAZING!!! Had crowds gathering around at SEMA to hear this thing roar! It made a LOT of GTR owners Jealous!!! They were parked next to me at the show and constantly asked "what the HELL do you have in that THING!?!?!?!"

Do you happen to have any vids? Should be interesting, I've never found a video of the quad tips.

Is it confirmed that the GTM 3" downpipes will not mate to a 2.5" exhaust? Leaving FI, GTM and AAM the only options for catback?


Just realized a revived a super old thread...

No. Most 2.5" will fit the GTM 3" down pipes as they end in the factory location. I had no issues hooking my Berk up to the 3" down pipes.

thanks. Wanted to make sure flange bolts would line up.

3" AAM's with GTM 3" down pipes. No cats. Yes, and very loud. Just working on getting use to the volume level. Will definitely be doing some sound dampening inside.

GTM downpipes with EWGs recirculated to a FI 3" exhaust, catted. Fairly quiet at idle and cruise, and just loud enough at WOT.

GTM 3 inch down pipes F.I 3 inch exhaust open WG dumps.

Only loud when am WOT

I wanted to go with the FI 3" as well but they don't make none for the g37. I had to go with Gtm 3" downpipe and their 3" catback exhaust. I didnt want a catback but had no choice at the moment.. Gonna look for what else is out there later on.

I will add that before I sold the car I went with the non-resonated FI 3" and recirculated the WG. By far the absolute best the car ever sounded.

Hell yeah they are loud. I had no idea the first time I got in it and hit 4500rpm what the hell that sounds was. Freaked me out :icon17: I have since recirc my open dumps as to keep out of trouble :tup:
I'm running Gemini invidia on mine. It's a bit small 2.36" I think and had to weld to a smaller diameter from down pipes. Already had the exhaust b4 I went TT and I like how quiet it is.

That is a bit small are you going with a bigger exhaust for your build ? I had to go 3 inch on mine had way to much back pressure.

Yeah that is the one thing I believe that's holding me back. I recall seeing a big difference In torque when u went with your 3". I would like to get a dyno run down n see where she is at and if its to choked see if GTM will slap a 3" on n run her again. Only problem is convincing the wife I need a "new" exhaust when the other one only has about 500miles on it :ughdance: Would love a quad exhaust but that means new rear bumper n more $$$ :icon14:

I have a heap of questions about the GTM dual vs quad tips if you wouldn't mind me asking..? :)

Cheers..

Quads is bad$$. Along with $$$$. I'd rather have a titanium exhaust. I want to do something different. But my Greddy is so nice sounding besides all the drone.