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      07-11-2012, 09:29 PM   #1
hetzle
First Lieutenant
 
Drives: E90 335i
Join Date: Dec 2011
Location: Los Altos, California

Posts: 320
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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!
__________________
2011 335i sedan 6MT, JB4 w/FlexFuel wires, AA 4" DP, VRSF 7" FMIC, AA turbo-back exhaust, UUC DSSR+SSK, ER CP, BMS CDV, BMS OCC, Arkym CF trunk

Last edited by hetzle; 07-11-2012 at 11:49 PM.
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