Following up on this older post - why not a USDM M3 bumper? If the replicas are identical to the USDM M3 (and which also typically require modification for fitment), why the distinction in the rules? Is there some advantage to an USDM M3 bumper versus a replica the rules are trying to mitigate?
Thanks - really appreciate the quick response. I have an '06 E46 M3 and was replacing its bumper and at the same time was working on my '03 330Ci which I am building to SE46. The only difference I can find between a non-M replica and the OEM M3 cover is a plastic bracket which can be popped off, and a ridge on the inside of the OEM M3 bumper designed to fit the composite M3 mount (as opposed the aluminum non-M3 mount) which could be easily ground off. The width is not enough to cause it to not fit as the non-M uses the same plastic brackets. Interesting rule, but I guess it is the rule! Thanks again for taking time to research it for me.
I did get the M3 bumper, set it on the car the other day and it would definitely take a significant amount of work to get it to fit up nicely. Headlights don’t match up, grill width is wider. I won’t be racing spec for a while so I’m planning to hack it and zip tie to fit for the time being.
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