Akrapovic exhaust

BimmerBill458 · 11-02-2016, 08:11 PM

I picked up my 2017 m4 a month ago and was underwhelmed by the sound. Just had an Akrapovic titanium slip on exhaust put on. Picked it up and couldn't really tell the difference in sound. Very underwhelming. Maybe the valves aren't opened?

Any feedback?

I have owned several other cars and notice huge differences with aftermarket kits.

SD ///M4 · 11-02-2016, 09:08 PM

There's a forum specifically for this: Engine / Drivetrain / Exhaust /Bolt-ons

AhsanU · 11-02-2016, 09:23 PM

You might need to run an aftermarket catless downpipe to get a "better" sound. Better is in quotes because it's subjective of course.

But usually, the best bang for your buck on terms of performance and sound is a catless downpipe in tandem with a tune.

BimmerBill458 · 11-02-2016, 09:24 PM

I was told it wouldn't pass inspection here in Texas.

zuschnell · 11-02-2016, 09:43 PM

Quote:

Originally Posted by BimmerBill458

I was told it wouldn't pass inspection here in Texas.

Yes, that won't pass. You could add a mid pipe which would only eliminate your secondary cats. That shouldn't be a problem for inspection.

LOW4LYF · 11-03-2016, 01:30 AM

Akra slip on is not loud at all... get a mid pipe and get rid of the second cat and resonator and keep your tock dp....

literbikes · 11-03-2016, 02:00 AM

I have the akro slip with akro dp's. Sounds great, but will not pass inspections. Definitely should get the free flowing mid pipes to enhance the sound if dp not an option. Just don't do dp and midpipe... too raspy with drone.

Justin.AutoTalent · 11-03-2016, 02:03 AM

I would suggest the Akrapovic Mid Pipe with no secondary cats, but that is unavailable now in the States.

The only option now is downpipes

BimmerBill458 · 11-03-2016, 06:58 PM

I am reading over and over about people starting the car up and setting off alarms and driving by houses and having people call the cops. My car sounds like my old stock 335. Like engine noise not exhaust note.

I haven't had my 1200 mile service yet though.

tom @ eas · 11-03-2016, 07:39 PM

Akrapovic Slip On systems are very tame compared to the EVO setups. Catless downpipes will really wake up the exhaust note, while gaining a few ponies at the same time.

Justin.AutoTalent · 11-03-2016, 11:14 PM

Quote:

Originally Posted by BimmerBill458

I am reading over and over about people starting the car up and setting off alarms and driving by houses and having people call the cops. My car sounds like my old stock 335. Like engine noise not exhaust note.

I haven't had my 1200 mile service yet though.

I have the full system on my car. It definitely sets off car alarms.... Here's a video comparison of MPE (SSII) and Akrapovic (Tanzanite Blue)

d4vid · 11-03-2016, 11:20 PM

Quote:

Originally Posted by BlackDragon

I have the MPE and it rips!! Loud with full throttle. Really loud with full throttle. I'm very impressed. Quiet as all get out if not punching it but still louder than a stock 4 series for sure.

Edit: I have set off car alarms (in a parking garage).

Ditto

:

G1n Mast3r · 11-04-2016, 03:32 AM

Quote:

Originally Posted by Justin | AutoTalent

I have the full system on my car. It definitely sets off car alarms.... Here's a video comparison of MPE (SSII) and Akrapovic (Tanzanite Blue)

I think most exhaust systems for our cars in a closed off environment will set off car alarms lol I know I have. But Debating making it super loud with some Catless DP's :P But i'm still debating on that.

GOLFFRR · 11-04-2016, 06:07 AM

I have the full Akra with DPs on my car as well and its loud no doubt. I would suggest getting a valve controller unit so you can open and close the valves, I have the mach schnell (spelling?) one works like a charm.

-JLT- · 11-04-2016, 06:45 AM

Quote:

Originally Posted by BimmerBill458

I picked up my 2017 m4 a month ago and was underwhelmed by the sound. Just had an Akrapovic titanium slip on exhaust put on. Picked it up and couldn't really tell the difference in sound. Very underwhelming. Maybe the valves aren't opened?

Any feedback?

I have owned several other cars and notice huge differences with aftermarket kits.

vert looks awesome. anymore pics of ur ride?

Daxos · 11-04-2016, 12:47 PM

Quote:

Originally Posted by literbikes

I have the akro slip with akro dp's. Sounds great, but will not pass inspections. Definitely should get the free flowing mid pipes to enhance the sound if dp not an option. Just don't do dp and midpipe... too raspy with drone.

I have the full Akra setup with catless dp's and midpipe and have no drone whatsoever. If you have drone you might want to check your exhaust was installed correctly.

literbikes · 11-06-2016, 01:05 AM

Quote:

Originally Posted by Daxos

Quote:

Originally Posted by literbikes

I have the akro slip with akro dp's. Sounds great, but will not pass inspections. Definitely should get the free flowing mid pipes to enhance the sound if dp not an option. Just don't do dp and midpipe... too raspy with drone.

I have the full Akra setup with catless dp's and midpipe and have no drone whatsoever. If you have drone you might want to check your exhaust was installed correctly.

You have any video clips of your system? I know the video does not really sound exactly right but curious. Thx

carbon//m3 · 11-06-2016, 10:05 AM

I have the full Akra with stock DP and stock valve control, my car is very loud.

Gstone · 11-07-2016, 09:47 AM

seems like slip on exhausts don't change loudness much, just look good. Need to either get midpipe or downpipes.

BimmerBill458 · 11-07-2016, 09:49 AM

I called the Akrapovic folks and they can't sell the downpipe or evolution midpipe here in the states. Said it won't pass emissions.

Is this true? Does anyone have the full system installed? Where did you order it from? Will it pass inspection?

HRE_Wheels · 11-07-2016, 10:25 AM

Quote:

Originally Posted by BimmerBill458

I called the Akrapovic folks and they can't sell the downpipe or evolution midpipe here in the states. Said it won't pass emissions.

Is this true? Does anyone have the full system installed? Where did you order it from? Will it pass inspection?

Due to EPA regulations and standards, we are no longer importing into the United States exhaust pieces which do not meet EPA requirements. This would include pieces like downpipes which alter vehicles emissions.

Slip on systems and other systems which have been approved are still available.

-JLT- · 11-07-2016, 11:18 AM

Quote:

Originally Posted by HRE_Wheels

Quote:

Originally Posted by BimmerBill458

I called the Akrapovic folks and they can't sell the downpipe or evolution midpipe here in the states. Said it won't pass emissions.

Is this true? Does anyone have the full system installed? Where did you order it from? Will it pass inspection?

Due to EPA regulations and standards, we are no longer importing into the United States exhaust pieces which do not meet EPA requirements. This would include pieces like downpipes which alter vehicles emissions.

Slip on systems and other systems which have been approved are still available.

there goes Akra sales here in the States

:

11-02-2016, 08:11 PM	#1
BimmerBill458 New Member 14 Rep 17 Posts Drives: M4 convert 2017 Yas Join Date: Sep 2016 Location: Austin, Tx iTrader: (0)	Akrapovic exhaust I picked up my 2017 m4 a month ago and was underwhelmed by the sound. Just had an Akrapovic titanium slip on exhaust put on. Picked it up and couldn't really tell the difference in sound. Very underwhelming. Maybe the valves aren't opened? Any feedback? I have owned several other cars and notice huge differences with aftermarket kits. Attached Images
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11-02-2016, 09:08 PM	#2
SD ///M4 ///Multiple 2992 Rep 4,243 Posts Drives: M4 Coupe \| M3 \| Z4M Roadster Join Date: Jan 2011 Location: San Diego, CA iTrader: (1) Garage List 2006 BMW Z4 M Roadster [8.81] 2016 BMW M4 Coupe ( ... [10.00] 2018 BMW M3 (Euro D ... [0.00] 2011 BMW 335is Coup ... [10.00]	There's a forum specifically for this: Engine / Drivetrain / Exhaust /Bolt-ons __________________ The Coupe: 2016 M4 \| Sakhir Orange \| Black Full Merino Leather \| CF Trim \| M-DCT \| More \| ED 5/13/16 The Sedan: 2018 M3 \| San Marino Blue \| Black Full Merino Leather \| CF Trim \| M-DCT \| ZCP \| ED 7/18/18 The Roadster: 2006 Z4 \| Interlagos Blue \| Black Extended Nappa Leather \| Carbon Leather Trim \| Purchased 7/19/12
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11-02-2016, 09:23 PM	#3
AhsanU i can haz horsepowr ?? 3830 Rep 1,927 Posts Drives: inconspicuous white van Join Date: Jun 2012 Location: Westchester, N.Y. iTrader: (2)	You might need to run an aftermarket catless downpipe to get a "better" sound. Better is in quotes because it's subjective of course. But usually, the best bang for your buck on terms of performance and sound is a catless downpipe in tandem with a tune.
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11-02-2016, 09:24 PM	#4
BimmerBill458 New Member 14 Rep 17 Posts Drives: M4 convert 2017 Yas Join Date: Sep 2016 Location: Austin, Tx iTrader: (0)	I was told it wouldn't pass inspection here in Texas.
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11-03-2016, 01:30 AM	#6
LOW4LYF Brigadier General 2163 Rep 4,106 Posts Drives: E92 M3 & F85 X5M Join Date: Jul 2016 Location: @Home iTrader: (1)	Akra slip on is not loud at all... get a mid pipe and get rid of the second cat and resonator and keep your tock dp....
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11-03-2016, 02:00 AM	#7
literbikes Private First Class 92 Rep 145 Posts Drives: 2018 G. Telesto M3 w/SO Stitch Join Date: Nov 2015 Location: Seattle, WA iTrader: (1)	I have the akro slip with akro dp's. Sounds great, but will not pass inspections. Definitely should get the free flowing mid pipes to enhance the sound if dp not an option. Just don't do dp and midpipe... too raspy with drone. __________________ 2018 Grigio Telesto Comp M3 w/SO Stitch MT/JB4/Full Akro EVO w/DP/CAI/MPerf HAS 2016 MG M3/MT/JB4/Akro DP/Full Akro Evo/CAI*
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11-03-2016, 02:03 AM	#8
Justin.AutoTalent Banned 3138 Rep 2,953 Posts Drives: F80 M3 Join Date: Jul 2016 Location: LA iTrader: (1)	I would suggest the Akrapovic Mid Pipe with no secondary cats, but that is unavailable now in the States. The only option now is downpipes
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11-03-2016, 06:58 PM	#9
BimmerBill458 New Member 14 Rep 17 Posts Drives: M4 convert 2017 Yas Join Date: Sep 2016 Location: Austin, Tx iTrader: (0)	I am reading over and over about people starting the car up and setting off alarms and driving by houses and having people call the cops. My car sounds like my old stock 335. Like engine noise not exhaust note. I haven't had my 1200 mile service yet though.
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11-03-2016, 07:39 PM	#10
tom @ eas BimmerPost Supporting Vendor 8211 Rep 18,823 Posts Drives: BMW Join Date: Nov 2005 Location: Anaheim, CA iTrader: (19) Garage List 2018 BMW i3s [5.00] 2010 BMW M3 [6.50] 2015 BMW M4 [6.20]	Akrapovic Slip On systems are very tame compared to the EVO setups. Catless downpipes will really wake up the exhaust note, while gaining a few ponies at the same time. __________________ Tom G. \| european auto source (eas) email: tom@europeanautosource.com · web: https://europeanautosource.com· tel 866.669.0705 · ca: 714.369.8524 x22 GET DAILY UPDATES ON OUR BLOG · FACEBOOK · YOUTUBE · FLICKR · INSTAGRAM
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11-04-2016, 06:07 AM	#14
GOLFFRR 10817 Rep 27,600 Posts Drives: GOLFFRR cart Join Date: Mar 2009 Location: we sell BMWs to "ALL" US states iTrader: (4)	I have the full Akra with DPs on my car as well and its loud no doubt. I would suggest getting a valve controller unit so you can open and close the valves, I have the mach schnell (spelling?) one works like a charm. __________________ BEFORE YOU BUY YOUR NEXT BMW, EMAIL OUR GUY KOTE FIRST! Kote M Sales:Kotem@bmwofcamarillo.com Cell:805-368-9101 vipfinance@bmwofcamarillo.com for warranties!
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11-06-2016, 10:05 AM	#18
carbon//m3 Captain 168 Rep 635 Posts Drives: m4 vert Join Date: Sep 2012 Location: CA iTrader: (3)	I have the full Akra with stock DP and stock valve control, my car is very loud.
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11-07-2016, 09:47 AM	#19
Gstone Lieutenant 142 Rep 555 Posts Drives: '18 GT350, '15 M4 sold Join Date: Sep 2014 Location: NY Burbs iTrader: (0)	seems like slip on exhausts don't change loudness much, just look good. Need to either get midpipe or downpipes.
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11-07-2016, 09:49 AM	#20
BimmerBill458 New Member 14 Rep 17 Posts Drives: M4 convert 2017 Yas Join Date: Sep 2016 Location: Austin, Tx iTrader: (0)	I called the Akrapovic folks and they can't sell the downpipe or evolution midpipe here in the states. Said it won't pass emissions. Is this true? Does anyone have the full system installed? Where did you order it from? Will it pass inspection?
	Appreciate 0 Quote