The Truth Behind Quad Setups. Seperating Fact and Fiction.
#112
Umnitza sells a quad setup for a 530i that they claim has proven gains:
https://5series.net/forums/topic/872...haust-for-e60/
https://5series.net/forums/topic/872...haust-for-e60/
#113
Senior Members
Umnitza sells a quad setup for a 530i that they claim has proven gains:
https://5series.net/forums/topic/872...haust-for-e60/
https://5series.net/forums/topic/872...haust-for-e60/
#114
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Join Date: Feb 2008
Location: Fullerton, CA
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It would be awesome to see a race between the 'dyno proven' quad exhaust and a competitor's single sided setup, such as RPi. i'm willing to be the single sided will win every time.
#115
Senior Members
Possibly so, but the look of the quads is just so much more bad ass. So you really have to consider what you wanna do if you want looks, or if you want to be fast and furious. Is up to you.
#116
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Join Date: Jun 2008
Location: Chino Hills
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My Ride: 545I SMG
UPDATE: Talked to an exhaust shop today and I'm going to cruise by on Saturday morning to have him take a look and see what he thinks. This guy has done a ton of various applications for a wide variety of cars including M5s. He can do custom headers, x-pipe, full exhausts, etc. Work looks really good, better than some of the aftermarket brands I've see here so I'm really excited to see what he thinks. The anticipation is killing me right now...
#118
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Join Date: Jun 2009
Location: Portland OR.
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My Ride: 2006 550i
Model Year: 2006
Check Member WEST he did a pre and post Quad setup with part numbers and pricing and showed
a 10.5 hp gain on a DYNO!!!
Will be doing this setup in the Spring
after my M5 rear gets painted...
a 10.5 hp gain on a DYNO!!!
Will be doing this setup in the Spring
after my M5 rear gets painted...