AA X-pipe catless

C|3R1C · 06-27-2012, 10:58 AM

So I just changed my AA HFC to AA catless. Easy swap. Already I love the new sound (bit more deep, then screeching at high rpm!

). The throttle feels, lighter, but I think thats because the car is still readjusting.

I changed it just so I could know what it sounded, smelled, felt, and how much more power (if any) it would produce. Smell so far isn't bad, but I still think the car needs to adapt more.

So far so good though! New updates, as well as dyno will be posted in this thread later one. That dyno will also have my previous result because I lost the paper with the afe intake dyno on it :/ I am still using the AFE intake because I believe it still makes power in a real world setting. Heres the other thread:

http://www.m3post.com/forums/showthr...hlight=dyno%21

THE TECH · 06-27-2012, 11:00 AM

The AA is one of the best in regards to being able to change from cats to catless which I really like. My guess is that you'll be happy.

edwinm3 · 06-27-2012, 01:30 PM

I did the same on mine and ended up catless. More power that can be felt, better sound. A winner if you ask me.

C|3R1C · 06-27-2012, 03:42 PM

I already love it. Definitely very very little to no drone during freeway cruising. The hfc was notorious for the drone. Can't tell if no drone is good or bad haha. Love the sound!

06-27-2012, 10:58 AM	#1
C\|3R1C So Kewl Guy Drives: 2010 E93 M3 DCT Join Date: Sep 2011 Location: Los Angeles Posts: 407 iTrader: (0)	AA X-pipe catless So I just changed my AA HFC to AA catless. Easy swap. Already I love the new sound (bit more deep, then screeching at high rpm!). The throttle feels, lighter, but I think thats because the car is still readjusting. I changed it just so I could know what it sounded, smelled, felt, and how much more power (if any) it would produce. Smell so far isn't bad, but I still think the car needs to adapt more. So far so good though! New updates, as well as dyno will be posted in this thread later one. That dyno will also have my previous result because I lost the paper with the afe intake dyno on it :/ I am still using the AFE intake because I believe it still makes power in a real world setting. Heres the other thread: http://www.m3post.com/forums/showthr...hlight=dyno%21 __________________ 2010 E93 M3 / AA Catless X-Pipe / AA Catback / Vorsteiner Vented Hood and Bootlid E93 Trunk / ADV1 7.1 Wheels GB / LS3 LED Lights / AFE Stage 2 / Velos Designwerks Tune In progress: AA Pulley
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06-27-2012, 11:00 AM	#2
THE TECH BimmerPost Supporting Vendor Drives: BPMsport 2012 E92 M3 Join Date: Jun 2011 Location: Kansas Posts: 11,936 iTrader: (39)	The AA is one of the best in regards to being able to change from cats to catless which I really like. My guess is that you'll be happy. __________________ Check us out on Facebook at BPMsportLabs

06-27-2012, 01:30 PM	#3
edwinm3 Captain Drives: 2008 JEREZ BLACK M3 Join Date: Nov 2011 Location: Doral Posts: 762 iTrader: (2)	I did the same on mine and ended up catless. More power that can be felt, better sound. A winner if you ask me. __________________ AA Exhaust, AA X Pipe, AA SSK, AA Geen Air filter, AA Pulley, AA Tune

06-27-2012, 03:42 PM	#4
C\|3R1C So Kewl Guy Drives: 2010 E93 M3 DCT Join Date: Sep 2011 Location: Los Angeles Posts: 407 iTrader: (0)	I already love it. Definitely very very little to no drone during freeway cruising. The hfc was notorious for the drone. Can't tell if no drone is good or bad haha. Love the sound! __________________ 2010 E93 M3 / AA Catless X-Pipe / AA Catback / Vorsteiner Vented Hood and Bootlid E93 Trunk / ADV1 7.1 Wheels GB / LS3 LED Lights / AFE Stage 2 / Velos Designwerks Tune In progress: AA Pulley

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