richard313

I'm in the process of looking for a quad diffuser which will have enough clearance for these quads BMW 337's quad setup

I'm currently have the OEM MTEC kit on the car, and plan on keeping the rear bumper for the time being. So I'm looking to upgrade the rear diffuser to allow a quad set up. Anybody have info on which one of the quad diffuser will have enough clearance?

Quad MTEC/Hamann/Rieger

Thanks

Hyper_545i

Quad MTECH here. Not sure if they will fit your setup. I have 4 - 3.5" Tips in there.

tju317

I'm not sure if there is enough clearance for the tips you want but I do have a Rieger diffuser for sale painted jet black. I was able to use dual staggered 3.5" tips on each side if that helps any. PM or email if you're interested. Thanks.

DKNewYork

Well there is another option. You can get the Umnitza M5 replica rear bumper and sell the M-tech rear bumper. So basically you have a bumper that pays for itself rather than spend $300-350 for just the diffuser. That's what I did.

Unless you want the M-tech with a diffuser look. I wanted to keep my M-tech but my tips wouldn't fit. So I went with the M5 replica bumper.