Fellow forum user to fellow forum user: be very careful with Duke Dynamics. Search around and you'll see a VERY mixed bag of reviews. Fitment is often an issue, particularly with their quad M-tech diffusers.
I've researched this issue ad nauseum when I installed quads. My shop ended up helping me custom-mold the diffuser in Shenzhen and it all fits perfectly now. I'll PM you the name/contact.
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Originally Posted by Bimmer /E93
Thanks Guys...
I've been under the car and took out the cover protector that reside under the driver seat side. Emmm.. I can roughly tell that a 2nd same size of my current muffler would fit... Not quite sure about it though...
I have been in touch with Duke Dynamics sales for the Quad CF Diffuser...
I am having a problem to find a decent shop to help with this mod... I kind of find it weird with all these BMW/MB cars I see in HKG, most mod shops are Japa cars oriented...
I will keep on searching on Mr. Right Shop to do the work; and will keep you posted
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