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Did you happen to measure the pipe diameters? Looks good.
Two different suppliers (Summit and Mod Bargains) show 2.5 inch tubing = 63.5mm. Real OEM shows 65mm for my 128i vert and 75mm for the highest output n52. The bends look less restrictive but if the pipe is smaller.... Real OEM is talking about a clamp diameter, however, so maybe the stock pipe is not really 65mm?
Jim
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128i Convertible, MT, Alpine White, Black Top, Taupe Leatherette, Walnut, Sport
Ordered 5/22/09, Completed 6/4/09, At Port 6/9/09, On the Georgia Highway 6/13/09, Ship Arrived Charleston 6/24/09 at 10pm, PCD 7/21/09 
Last edited by JimD; 08-28-2013 at 04:31 PM..
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