Review: ACM OEM Modified Exhaust

SROC5 · 11-21-2011, 07:12 PM

Hi All-

Recently installed an OEM modified exhaust by ACM. It came with the full bells and whistles (Titanium Tips, Blacked Out Can). Big thanks to ACM for the work they did on my car and the great service delivered! If you're in the tri-state, you should check them out.

Objective
-Find an exhaust that sounds more aggressive than stock, but neither drones or is too loud for my taste (i.e. Race exhaust).

Strategy / Process of Vetting
-Listen to a variety of aftermarket exhausts in-person (Eisenmann Race, Magnaflow, Active Autowerke Sig, Remus, etc.)
-Compared to ACM OEM Modified Exhaust
-Compare benefits of pricing, looks, performance, etc.

Outcome / Results
-Expectations were met and exceeded (i.e. Looks, sound, fitment, ease of install). I was able to save and spend on other aftermarket "must-haves", with change left to spare.

Note: The blue tips and blacked out can from behind the car look very stealth (tips even look carbon from the back). When you walk up to the sides a bit the blue tips really add to the edge of the look (especially on JBZ or an ILB car)

What does it sound like?
See this forum link from ACM (video with HD vid on moving car).

http://www.m3post.com/forums/showthr...Modded+Exhaust

To confirm, it does not drone and sounds great inside the cabin. It's not too intrusive, but still delivers the V8 howl and depth you'd expect. It is not "tame" by any stretch of the imagination. I'd have to say more aggressive then M Perf. but below Race Exhaust set-ups. So a nice happy medium.
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PhillyNate · 11-21-2011, 07:26 PM

Nice write-up. Appreciated. Tell me what your feeling power wise. I'm not as concerned with an increase as much as lost power. Any lost power?

SROC5 · 11-21-2011, 08:53 PM

Quote:

Originally Posted by PhillyNate

Nice write-up. Appreciated. Tell me what your feeling power wise. I'm not as concerned with an increase as much as lost power. Any lost power?

Feels better than before. No loss of power or pull. If anything I feel theres less restriction through rev range in all gears.

PhillyNate · 11-21-2011, 09:06 PM

Quote:

Originally Posted by SROC5

Feels better than before. No loss of power or pull. If anything I feel theres less restriction through rev range in all gears.

Thanks. I may HAVE to do this.

img · 11-21-2011, 10:10 PM

Great write up and thanks for sharing,

for ACM as always !

zhp2m3 · 11-21-2011, 11:43 PM

tempting..looking forward to the pics.

Maseroche · 11-22-2011, 02:00 AM

Sounds seriously good!

Sal@AUTOcouture · 11-22-2011, 10:10 AM

Thanks for the review, Paul!

Glad you're enjoying it

SROC5 · 12-03-2011, 04:46 PM

Updated a much better picture of the exhaust. This one shows how stealth it looks from behind, the scorch tips only show actually in certain angles.

11-21-2011, 07:12 PM	#1
SROC5 Addicted to Track Drives: E92 M3 Join Date: Apr 2009 Location: USCON Posts: 1,266 iTrader: (3)	Review: ACM OEM Modified Exhaust Hi All- Recently installed an OEM modified exhaust by ACM. It came with the full bells and whistles (Titanium Tips, Blacked Out Can). Big thanks to ACM for the work they did on my car and the great service delivered! If you're in the tri-state, you should check them out. Objective -Find an exhaust that sounds more aggressive than stock, but neither drones or is too loud for my taste (i.e. Race exhaust). Strategy / Process of Vetting -Listen to a variety of aftermarket exhausts in-person (Eisenmann Race, Magnaflow, Active Autowerke Sig, Remus, etc.) -Compared to ACM OEM Modified Exhaust -Compare benefits of pricing, looks, performance, etc. Outcome / Results -Expectations were met and exceeded (i.e. Looks, sound, fitment, ease of install). I was able to save and spend on other aftermarket "must-haves", with change left to spare. Note: The blue tips and blacked out can from behind the car look very stealth (tips even look carbon from the back). When you walk up to the sides a bit the blue tips really add to the edge of the look (especially on JBZ or an ILB car) What does it sound like? See this forum link from ACM (video with HD vid on moving car). http://www.m3post.com/forums/showthr...Modded+Exhaust To confirm, it does not drone and sounds great inside the cabin. It's not too intrusive, but still delivers the V8 howl and depth you'd expect. It is not "tame" by any stretch of the imagination. I'd have to say more aggressive then M Perf. but below Race Exhaust set-ups. So a nice happy medium. Attached Images __________________ ZCP E92 M3 \| Akrapovic Evo \| ESSi \| Swift Spec-R \| APEX ARC-8 \| RS-3 \| PFC-08 \| MS Filter \| MS Spacers \| Last edited by SROC5; 03-23-2012 at 05:57 AM.
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11-21-2011, 07:26 PM	#2
PhillyNate BMWCCA #405750 Drives: 2011 E92 M3 ZCP Join Date: Apr 2011 Location: Philadelphia Posts: 1,415 iTrader: (0) Garage List 2011 BMW E92 M3 [0.00]	Nice write-up. Appreciated. Tell me what your feeling power wise. I'm not as concerned with an increase as much as lost power. Any lost power? __________________ "what I'm driving here...is an ending." Jeremy Clarkson 2011 Alpine White BMW M3 6mt ZCP Coupe 2008 Alpine White BMW 328i 6mt Coupe (retired 06/21/11)

11-21-2011, 10:10 PM	#5
img VT3 Drives: E36 M3 Track car,Ess E90 M3 DD Join Date: Feb 2008 Location: The Couch Posts: 5,855 iTrader: (5)	Great write up and thanks for sharing, for ACM as always ! __________________ NO FEAR.NO LIMITS.NO EQUAL Ess VT3 LC built motor,Volk TE37SL,Challenge modefied Xpipe,Akra axle back CF tips. LOW BOOST 60-130 6.7 sec

11-22-2011, 02:00 AM	#7
Maseroche Major Drives: '08 BMW M3 Join Date: Sep 2009 Location: Bahrain Posts: 1,405 iTrader: (0) Garage List 2008 BMW M3 [0.00]	Sounds seriously good! __________________ Khalid '08 BMW M3

11-22-2011, 10:10 AM	#8
Sal@AUTOcouture BimmerPost Supporting Vendor Drives: Techno Violet ESS M3 Join Date: Feb 2007 Location: NJ Posts: 8,826 iTrader: (28)	Thanks for the review, Paul! Glad you're enjoying it __________________ ACM Testpipes \| ESS Superchargers \| Aquamist Meth Kits \| P: 201.666.3500 \| Sal@autocouturemotoring.com \| Facebook \| youTube

11-21-2011, 11:43 PM	#6
zhp2m3 Private First Class Drives: 2011.75 E90 LeMans Blue Join Date: Oct 2011 Location: SF Bay Area Posts: 124 iTrader: (0)	tempting..looking forward to the pics.

12-03-2011, 04:46 PM	#9
SROC5 Addicted to Track Drives: E92 M3 Join Date: Apr 2009 Location: USCON Posts: 1,266 iTrader: (3)	Updated a much better picture of the exhaust. This one shows how stealth it looks from behind, the scorch tips only show actually in certain angles. __________________ ZCP E92 M3 \| Akrapovic Evo \| ESSi \| Swift Spec-R \| APEX ARC-8 \| RS-3 \| PFC-08 \| MS Filter \| MS Spacers \|

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