I just recently installed the shine diffuser on my car, but I'm not too sure how its supposed to be mounted. I have it mounted in 6 locations: 2 on each end of the bumper, and 2 in the center between the exhaust.

Is there supposed to be a mounting point closer to the subframe? The end of the diffuser closest to the subframe drags once I start picking up some speed.

 

You have to stop driving the car with the diffuser on if you don't have the rear 2 points mounted. On my diffuser I had to make my own mounts. I bought water heater straps, bent them into a "Z" and used worm clamps to hold the mount against the rear subframe (round tube) and the other end of the strap bolted to the diffuser.

 

My mounts have held up fine for about a year now. High speeds low speeds etc.... The only problem I have is when I wash my car, my diffuser turns into a bird bath. I'm thinking about drilling drainage holes in the rear.

 

shine does not provide an brackets. you will have to fab up your own

 

i had all the same points you have installed, and then two more on the rear near the subframe that i put together out of some pieces from the local hardware.

 

Sounds good. I havent been driving around with it at all, I just test drove my car around the block and heard it scraping. I was planning to fab up some mounts around that area anyways. Thanks.