What does that do? Less vibration or something?

So while i was putting my M370 on, i decided to do this
http://i904.photobucket.com/albums/a...224_155830.jpg
and this
http://i904.photobucket.com/albums/a...224_170538.jpg

Ran out of paint, so its not finished until tomorrow...

It reduces movement of the transmission during acceleration and deceleration, and gives you a more solid feel. The OEM mount is really designed to reduce as much NVH as possible from the cabin. Its just like the diff bushings, they are soft and mushy, and allow tons of movement with the powertrain.

I'm probably going to buy Z1 urethane engine mounts and diff bushings next.

:tup: MJB new one looks much more solid!

Yeah, it sure is. And I was able to shed 1lb :tup:

How much extra cabin noise is there? I'd like to do this upgrade, but wanted to know how noisy it gets over stock? Especially if you add a lightweight flywheel to the mix.

Honestly, I haven't noticed any increase in noise or anything. I also have a lightweight flywheel.

We will have to do something before the weather gets unbearable!

I have terrible roads in my area and really looking to do this soon, how much quieter do you think the change was?

Stellar work Jar! :tup:

Don't expect to NOT hear pebbles bouncing up in your wheel well or anything. It seems to be most effective against general road noise vibrating through the tires. Stuff that bounces up underneath the car definitely sounds more muted, though. I only have two short drives with the install so far, so I will have a better idea after a few days. But right now, it is better than I imagined :tup: :tup:

There are before videos, so I'm going to try to do a comparison after video that mimics the before one as close as possible. The videos include an audio (stock, unfortunately) test while parked and a driving test accelerating to and cruising @ 70 mph. I just wish we had more video of varying road surfaces - the road we were on was pretty quiet so I'm not sure how much difference there will be. I used a simple decibel app on my iPhone, so we'll have to use the same method for comparison. I didn't get my hands on a nice SpL meter until this weekend after I was half way done with the install, but I will use it for a final result dB reading even if it doesn't have a before reading to compare.

Also, while I am impressed with the hatch sound now, I think that doing the doors will be even more noticeable since I sit a lot closer to them. I can't say for sure how the overall dB readings would change. I am definitely planning to do the doors, but I'll have to pick up some more GT Mat Onyx. The hatch took all 18 squares that I had.

Thank you, sir. That means a lot coming from a guy who's doing his own turbo install :tiphat:

Unless you finish the project with a mass loaded vinyl barrier and closed cell foam. GT Mat takes the "ping" noise out of the rocks hitting the wheel well.

Exactly, you still hear them, but they are muted and don't make the metallic "ping" sound :tup:

Just dropped her off for a wheel alignment. I really need to get a lifetime one set up already.

:excited: Evo-R lip is in LA customs.