April 25, 2014
DO THESE WITH HEADERS!!
I installed these motor mounts when doing my BBK shorty headers. Killed 2 birds with one stone! I CAN NOT STRESS ENOUGH doing mounts with headers. WORD OF WARNING. when installing these mount with headers. Attach the mount to the bracket and tighten almost all the way. I only say this because there isn't a clear line from the top to tighten, and no clearance with a standard allen wrench either. Had to use a socket head allen with a ratcheting box wrench around the hex part of the socket to tighten down. If you still have OEM headers on, this is a ZERO issue. I don't know if it would be an issue with LT headers, but I am guessing it would be just as bad with them. You should have clear shot from the top. NVH, people freak when they see this, don't!! Is there greater vibration, YES!!! but its good! no Beach Boy jokes! I say good, simply because I feel more "connected" to the motor. I compare it to riding in an old school muscle car. If you want to maintain a more "luxury feel" stay OEM. I will say when at 35 MPH or more at lower rpm you still feel the vibration, but not like at idle/start up at all. I wouldn't hesitate to do a long road trip!!!! 65-75 mph feels like OEM are still installed for the most part(unless you stomp on it) . Some people are more sensitive to vibration so please keep this in mind. The shifting is also improved. 1-2, 2-3 is smoother an less "notchy" feeling. This makes sense, seeing as the new mount keep the engine from "jumping" all around when under load, which of course means the transmission stay put better now too! Great reduction in the drive line "clunk" when hitting the gas at speed. Isn't gone, but with that 2 piece drive shaft you will NEVER 100% eliminate it. It simply seems/feels less harsh, but that could just be me. Don't forget I did headers at the same time so some of my good vibes are a result of that as well, but I'm sure 90-95% of it is from the mounts. Still getting use to it myself, but I love the look on other peoples face who are sitting in the car when I start it. Not one person has felt the vibration was a bad thing. All have said something positive to date.