Well I got the greeves in and thought i would post a few pic's of how i did it.I had to cut about 5/8" off the exhaust exit tubes to get them in,you also have to knock the rear of the canister tunnel ,its really well thought out by qq aircraft!The rear mount needs to slide over the tubes as you install them,then glue in place,fits perectly!QQ said you don't need the front mounts(Sized for cans),but I used it since it was already there.I used 5mm od silicon tubing with smaller tubing inside that to make the mount snug around the greeves pipes.I've found out also if you clean the connecting ends of the headers and pipes w/alcohol, then heat the coupler up with a torch before pushing them on and clamping while still hot they never leak.Hope this helps somebody and hope its accurate!
Oh yea you have to grind out a little below motor mount to allow room for the headers.