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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > HPF exhaust review.



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      02-05-2011, 12:10 AM   #89
BrianMN
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Originally Posted by Overboost View Post
I wanted the weight savings of the exhaust but from the videos it seems like without the cats it would be to loud for everyday driving. Nearly sounds like it was drone at 3000 rpm but u were lifting of the throttle slightly to reduce the engine load.
AMS is also a good answer for weight savings. Single 3" with a muffler...sounds amazing but not too loud. and 3" is easily good to support 600whp or more.
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      02-05-2011, 12:32 AM   #90
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I think this exhaust will make more since when the big turbo kit comes out.
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      02-06-2011, 07:11 AM   #91
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Originally Posted by awd View Post
The only mod I have in the vid is the hpf exhaust.
fawwww....once you add catless dp...game over! Your neighbors will start cutting off your exhaust!

Sounds really really nice would love to hear this thing with catless dp @ full throttle.
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      02-06-2011, 08:47 AM   #92
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Quote:
Originally Posted by creaminz View Post
fawwww....once you add catless dp...game over! Your neighbors will start cutting off your exhaust!

Sounds really really nice would love to hear this thing with catless dp @ full throttle.
I will post vids next week, no worries. I will be doing multiple comparison videos. I currently have the AA exhaust. I am going to do windows down with AA, then go put the HPF on and do anther windows down video. I will also do video from behind my car like I did with the AA on my youtube page.
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      02-06-2011, 05:45 PM   #93
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