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 - 1M First Exhaust mod by HP Autowerks, Inc.

HP Autosport · 05-25-2011, 12:22 AM

Ever since we picked up the 1M we thought the exhaust was a bit too civilized. It needed a bit more rumble, nothing overly loud, but just a touch more.

We removed the oem mid-pipe(28.3 lbs) with two secondary cats and a resonator and replaced it with a full stainless steel resonated mid-pipe(21.2 lbs). The mid-pipe has dual 2.5" pipes with dual resonators, into a single 3" Y.

Installation time is about 30 minutes using hand tools with a perfect fit.

Here is a quick video with sound(we will post another one later as we were running out of daylight):

05-25-2011, 12:22 AM	#1
HP Autosport Supreme Allied Commander 3843 Rep 54,362 Posts Drives: F80 M3 Join Date: Mar 2007 Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com iTrader: (36)	1M First Exhaust mod by HP Autowerks, Inc. Ever since we picked up the 1M we thought the exhaust was a bit too civilized. It needed a bit more rumble, nothing overly loud, but just a touch more. We removed the oem mid-pipe(28.3 lbs) with two secondary cats and a resonator and replaced it with a full stainless steel resonated mid-pipe(21.2 lbs). The mid-pipe has dual 2.5" pipes with dual resonators, into a single 3" Y. Installation time is about 30 minutes using hand tools with a perfect fit. Here is a quick video with sound(we will post another one later as we were running out of daylight): Attached Images Last edited by HP Autosport; 05-25-2011 at 12:45 AM..
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