BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i) - View Single Post - Aftermarket midpipe to OE catback question

E30 Racer · 09-06-2012, 07:55 PM

This is not the case for Akrapovic. The base OD if their gasket (i.e., at the small end of the taper) is nearly as large as the maximum diameter if the OE flange. No way I'd get a reliable seal.

09-06-2012, 07:55 PM	#3
E30 Racer Private First Class Drives: '11 1M, '99 540i/6, '89 325is Join Date: Aug 2011 Location: Ohio Posts: 166 iTrader: (1)	This is not the case for Akrapovic. The base OD if their gasket (i.e., at the small end of the taper) is nearly as large as the maximum diameter if the OE flange. No way I'd get a reliable seal.