Catless downpipes but keep orignal secondary cats
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12-10-2012, 02:33 PM
Drives: 01 M Coupe, 08 135i, '12 328i
Join Date: Jul 2007
I have never seen the catless dp/catted tail section in the shop. I'm really curious as to the smell level compared to fully catless. Anyone done both? Comments?
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