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      02-19-2010, 09:38 PM   #1
mike33176
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Went to Active Autowerke and got the Cat-back today! Did before and after Dyno pulls.

Finally made a decision and had my AA Cat-back installed today. After 25 miles so far, I love the new growl of my car! Since I'm starting from scratch(kinda, put the AA Air Filter on after 120 miles), I did a baseline dyno pull on their Mustang Dyno. I'll post the Dyno sheets on Monday due to a printer error. Before the install, it made 334.2 HP and after it made 347.5 HP(give or take a tenth or 2). This gain is right where they estimate it should be, they quote between 12-15 hp gain.Torque gains were good but, don't remember the exact numbers. Butt Dyno says more powerfull from mid-range to 8K.

On another note, It's great to be able to go to the manufacturer and have them install their parts on your car. Everyone at AA is Fantastic! When they put the car up on the lift, my installer noticed I had a very slight diff fluid leak and immediately showed to me and the other guys. They asked me if I still wanted to install the exhaust before I take it to the dealer? I only have 3300 miles on the car and had the 1200 service done @ 1700 miles. They checked the drail bolts and they were not completely tight, tightened them up. After the install and they did the after dyno pulls, they lifted the car again to check the diff, no leak!. Omar told me to stop by on Monday and they'll put it on the lift to double check to make sure no more leak. I'm very happy to be a part of the AA family, great shop, people, and products! Just my $.02. Their HFC X-Pipe is next on the agenda.

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      02-19-2010, 09:56 PM   #2
chungdae
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I'm still debating if I want to jump the gun and get the exhaust. I'm glad you're thrilled with the new exhaust. Congrats!
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      02-19-2010, 10:04 PM   #3
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So you are saying that you got 13 whp from just the muffler? Seems high...
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      02-19-2010, 10:16 PM   #4
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Quote:
Originally Posted by PunjabiM3 View Post
So you are saying that you got 13 whp from just the muffler? Seems high...
No BS, I'll post the dyno sheet on Monday, If I didn't see it, I wouldn't have believed it myself. We did 5 before pulls( 3 accurate and 2 with spikes) and 5 after pulls(4 accurate and one spiked). The engine made more power on the 3rd run both times, it needs a little temp to get the best result.
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      02-19-2010, 10:25 PM   #5
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Nice results, and I'm very glad that you're happy with your new exhaust, Mike

Look forward to seeing the before/after dyno charts.
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      02-19-2010, 10:30 PM   #6
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I was just there two weeks ago and had the full system installed
signature with x-pipe sweet sounding system

sweet little set up they have there at AA
Omar and scrappie know there stuff rude boys
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      02-19-2010, 10:34 PM   #7
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Quote:
Originally Posted by Nawaaz View Post
Nice results, and I'm very glad that you're happy with your new exhaust, Mike

Look forward to seeing the before/after dyno charts.
Thanks Nawaaz, I thought I said goodbye to mod bug after 2 trashed trannys, a turbo and a diff on my WRX. I guess it never gets out of your blood!
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      02-19-2010, 10:45 PM   #8
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Quote:
Originally Posted by mike33176 View Post
Thanks Nawaaz, I thought I said goodbye to mod bug after 2 trashed trannys, a turbo and a diff on my WRX. I guess it never gets out of your blood!
haha Same here.

My Evo's 6 speed tranny was going bad, and I still couldn't get over modding when I got into my M3.

Now, I'm finally starting to learn.

I hope.
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      02-21-2010, 07:49 PM   #9
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http://s612.photobucket.com/albums/t...t=MOV00442.flv
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      02-21-2010, 08:24 PM   #10
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I second the high level of service I received from these guys. Omar wants everything to be perfect and makes sure you are happy. Great customer service. Took the car out today for a nice drive along with my buddy's RS4. He couldnt believe the sounds my car makes. He has a GMG exhaust on his which sounds beautiful, but he was amazed how the AA HFC X-pipe and exhaust sound. I never heard it from the outside so I let him do some high-speed runs on a back road in my car while I stood and listened and all I can say is OMG. It is very raw and very loud. Sounds awesome. Amazingly, its quite tame in my opinion while you are in the car.
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      02-22-2010, 01:10 AM   #11
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Those are some really nice gains, congrats. And the exhaust sounds really good too!

Sounds loud, but at idle I think? sounded relatively tame. Does it drone between 1,500-2,500 rpms? & and what are those two 'canister' like objects next to the mufflers? (pardon the ignorance)
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      02-22-2010, 07:39 AM   #12
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I absolutely love to have my wife take my M to publix, cuz i get to stand in the driveway and actually hear the amazing sound.

I must say it sounds soo much nicer when your not driving it but merely stand outside and hear it.

Very unique and custom sound that signature system with x-pipe from AA

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      02-22-2010, 07:50 AM   #13
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It is a great sounding exhaust. I can't wait until it's warm enough for me to drive around with the windows down again haha.
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      02-22-2010, 11:37 PM   #14
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Uhhh Ohh.. You let your Wifee take the ///M to Publix? Ouch!
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      02-22-2010, 11:38 PM   #15
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Mike, Exhaust sounds GREAT! Congrats. Im in the market for 1 aswell. Debating between AA Rear or RPI Full..
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      02-23-2010, 02:49 PM   #16
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Mike,

It was great to have you come by and I am happy to see you are pleased with the system. Enjoy in good health my friend.

p.s. PG my fault on the charts, engineering will have them over to Mike today!
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      02-23-2010, 05:52 PM   #17
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Quote:
Originally Posted by PencilGeek View Post
Where's the dyno charts? I'd like to add them to the DynoDB.
Dyno -Michael_e90M3_exh_vs_stk.pdf
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Here it is, thanks Omar. How do I post this in the reply rather than have it as a PDF link? Sorry, newbe here.
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      02-24-2010, 11:52 AM   #18
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Thx Omar.
Your welcome Sir.
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      02-25-2010, 01:23 AM   #19
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Thanks PG.
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      02-27-2010, 02:10 AM   #20
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Quote:
Originally Posted by PunjabiM3 View Post
So you are saying that you got 13 whp from just the muffler? Seems high...
Posted results, 13 WHP and 14 LB FT gained from the rear section, as you call a muffler.
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