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      04-17-2013, 08:01 AM   #38
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Drives: 135i
Join Date: Apr 2012
Location: Montreal

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Answer from aFe :

3 x 3 3/4 ID and 3 Length

I have found a couple place where to order couplers, thing is, it has to be soft enough to become oval. From experience, good couplers are made to be stiff and not deform.

I face the same issue couple years ago fitting a 65mm TB to a 2.5in coldpipe on my SRT-4. The solution was actually to buy a cheaper (read lower quality) non-reinforced reducer.
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