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HPF exhaust vs. AA exhaust?
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07-11-2012, 09:29 PM | #1 |
First Lieutenant
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Rep 373
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HPF exhaust vs. AA exhaust?
Currently stuck between the two!
Differences I've noticed: -HPF is a single 3.5" pipe from the DP back to dual tips -HPF uses a single 14" resonator -HPF uses a flex section (which helps when the engine moves around) -AA is a dual exhaust from the DP back -AA uses an x-pipe -AA uses dual mufflers at the rear HPF is $1595 AA is $1890 Opinions and soundclips of AA and HPF exhausts on an N55 car would be greatly appreciated!
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2011 335i sedan 6MT, 515whp/530wtq. Pure Turbo Stage 2, Motiv SST TwinDisk Clutch/FW, Motiv Flash, AA 4" DP, ER FMIC, AA turbo-back exhaust, Quaife LSD, ST Coilovers, BMS Intake, UUC DSSR+SSK, ER CP, BMS CDV, BMS OCC, Arkym CF trunk
Last edited by hetzle; 07-11-2012 at 11:49 PM.. |
07-11-2012, 10:48 PM | #3 |
Colonel
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Rep 2,317
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Here's a video of my aa exhaust before I installed dps. I need to shoot another video with the dps intalled.
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07-11-2012, 11:41 PM | #5 |
First Lieutenant
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That does sound very good, I'm looking for more clips sans-DP if you guys have any
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2011 335i sedan 6MT, 515whp/530wtq. Pure Turbo Stage 2, Motiv SST TwinDisk Clutch/FW, Motiv Flash, AA 4" DP, ER FMIC, AA turbo-back exhaust, Quaife LSD, ST Coilovers, BMS Intake, UUC DSSR+SSK, ER CP, BMS CDV, BMS OCC, Arkym CF trunk
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