Exhaust Question. Feedback needed.

gavolant · 10-05-2011, 01:34 PM

Looking for a few good exhaust options whether it be a full system or just a DP. Basically my goals are to improve sound, and keep it street legal. Also, will an aftermarket exhaust void my warranty with BMW ??

On a side note, for those shopping around for the 135i powerkit I got a quote today. For the flash only its, $599 on special until the end of december, plus an hr of labor @ $178.

Thanks in advance for your input!

thebigragu99 · 10-05-2011, 01:36 PM

Quote:

Originally Posted by gavolant

Looking for a few good exhaust options whether it be a full system or just a DP. Basically my goals are to improve sound, and keep it street legal. Also, will an aftermarket exhaust void my warranty with BMW ??

On a side note, for those shopping around for the 135i powerkit I got a quote today. For the flash only its, $599 on special until the end of december, plus an hr of labor @ $178.

Thanks in advance for your input!

get the bmw performance axle back,it sounds sick and made from bmw..You'll have no issues.

gavolant · 10-05-2011, 01:43 PM

Any idea how much it costs installed?

Do the exhaust burbbles I get on my stock exhaust increase? I love that sound.

Also forgot to mention, I want to keep the black tips.

Flipwit · 10-05-2011, 02:03 PM

unless you have a pipe cutter i think the bmw exhaust needs to be installed. as for the tips, they aren't welded on you can slide them off and then onto your new one! if the tips are welded on the perf exhaust, you have have to cut them as well, just don't cut too much that you cant get the tips back on.

mike the snake · 10-05-2011, 06:21 PM

I just had my local muffler shop install this Magnaflow muffler on my 135. It sounds great, and only cost me $340, and shaved over 30 pounds off the car's overall weight.

The sound is just what I was looking for, I opted for a Mercedes AMG single exhaust tip that fit perfectly, with matching angle cut. I may switch back to the stock style dual tips, not sure.

I'm not sure if I'm missing something, but $1250 for the BMW axle back exhaust is a LOT of $$. The Magnaflow offering is $550-$800, and others I sourced were a lot of money as well.

I would think that any good muffler shop can do what I've had done here for similar costs.

Kamal · 10-05-2011, 06:27 PM

Couldn't be happier with my Berk Technology full street exhaust... great price as well from David@EAS. Lovely burble and I believe you can pay a little extra to get it coated black.

alexmtl_135i · 10-05-2011, 10:46 PM

I'm actually looking at doing the same upgrade on my 135i, Perf exhaust + Perf Power Kit.

For the BMW Perf exhaust they first quoted something like 1500$ + tax + manpower, but it quickly went down to 1275.
I got a quote for a stage 2 power kit because they had one they had put on a car for mechanics trainings. It was 1275$, down from 2000 ish.

Overall for both + tax + manpower they said they can lower it up to 3000$. I'm still thinking about saving another 500$ and just get the stage 1 kit. The price you got for the kit is very good, it's the same price on getbmwparts.com and they are very cheap. You can also look at getting your exhaust from there if your dealer doesn't lower the prices too much.

I went to listen to one of the mechanics' car with the Perf exhaust, and it sounds fucking great. I've listened to a lot of exhausts on youtube (not perfect, i know), but this one sounded very nice and quite angry

.. Which is what I want to hear when I step on the gas of a 300+hp car.

One last thing, the mechanic said the power kit was underestimated, and overall with power kit + exhaust I should be around 350hp. I've read a lot of posts saying that they felt it was much more than a 20hp increase, but 350 sounds quite a lot. Any thoughts on that anyone?

John Dempsey · 10-07-2011, 10:12 AM

Love my berk

GodSpeed135 · 10-07-2011, 11:04 AM

I have the Remus Race quad exhaust, it is great and has the great burble that you are looking for. For just an axle-back, the Remus really changed the exhaust note to a nice sporty european sound. It is a little high for just an axle back though.

alexmtl_135i · 10-08-2011, 01:10 AM

I actually got my perf exhaust installed today (no power kit yet). I need to test drive some more but:
- Lot of noise (too much?) with windows open, not so much windows closed
- Lot of burbles
- Noticeable improve in performance. Not sure if it is the placebo effect but it does seem like it improved acceleration.

|2ed · 10-08-2011, 03:22 AM

when you guys mentioned 'burbles', are you running manual or dct?

alexmtl_135i · 10-08-2011, 09:55 AM

N55 DCT for me. But the burbles I get are when releasing the gas around 2000RPM, so I don't think it's linked to the gearbox.

gavolant · 10-08-2011, 10:26 AM

Im assuming the berk axel back would void my warranty?

ken1137 · 10-08-2011, 10:29 AM

I would recommend Berk street performance exhaust with ceramic coating (black). Deeper tone than stock..you have an N55 so I would keep the mid pipe. Street legal(?), then AR catted down pipes if you want DPs. Otherwise, the Berk axle back will be your best bet...a bolt on axle back is not going to void your warranty and its only $700-$800 and you have black tips

cooler2442 · 10-08-2011, 10:34 AM

+1 for Berk.

It shouldn't void your warranty at all. I am sure your dealership gets cars that have changed exhausts to different ones on a weekly basis.

gavolant · 10-08-2011, 10:56 AM

Thanks guys!

Eyeman · 10-08-2011, 02:16 PM

It's pretty much "illegal" to do anything that modifies the catalytic converters on a car. So technically all you can do is change the axleback. However, if you live in an area that does not require emissions inspection this modification will probably never be noticed. Even in emissions inspecting areas sometimes you can still pass depending on what you did and how they test.

As far as BMW goes they might try to not cover warranty work if you've modified your car in anyway. The way I understand it they really can't void your warranty, they just refuse to do warranty work by blaming your mods (Btw this is the case with my car, it's been written up for all its mods by BMW). Most likely this will only come up if you decide to replace the stock downpipes. So an axleback is very safe, midpipes still probably safe.

I personally think MadDad makes the best axlebacks and midpipes for the money for our cars. They make a whisper or street series axleback. Great midpipe too. Don't do a downpipe mod unless you are very serious about modding.

AGM2 · 08-15-2016, 06:05 PM

Perfect Sound perfect!!! MadDad Midpipe & MadDad Euro Sport Street Exhaust

https://www.youtube.com/watch?v=I7jtsMd5TBg#password

http://www.daddysscp.com/BMW_135i_Exhaust_s/31.htm

10-05-2011, 01:34 PM	#1
gavolant Second Lieutenant 20 Rep 212 Posts Drives: 2011 AW 135i M-Sport Join Date: Jul 2010 Location: Falls Church, VA iTrader: (0)	Exhaust Question. Feedback needed. Looking for a few good exhaust options whether it be a full system or just a DP. Basically my goals are to improve sound, and keep it street legal. Also, will an aftermarket exhaust void my warranty with BMW ?? On a side note, for those shopping around for the 135i powerkit I got a quote today. For the flash only its, $599 on special until the end of december, plus an hr of labor @ $178. Thanks in advance for your input! __________________ 2011 AW 135i Coupe\|6MT\|Savanna Beige\|M Sport\|Navi Order Placed: July 26 \| Production Started: Aug 09 \| Production Complete: Aug 17 \|At Port: Aug 19 \| In Transit: Sept 02 \| At Prep Center: Sept 15 \| At Dealer: Sept 25
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10-05-2011, 01:43 PM	#3
gavolant Second Lieutenant 20 Rep 212 Posts Drives: 2011 AW 135i M-Sport Join Date: Jul 2010 Location: Falls Church, VA iTrader: (0)	Any idea how much it costs installed? Do the exhaust burbbles I get on my stock exhaust increase? I love that sound. Also forgot to mention, I want to keep the black tips. __________________ 2011 AW 135i Coupe\|6MT\|Savanna Beige\|M Sport\|Navi Order Placed: July 26 \| Production Started: Aug 09 \| Production Complete: Aug 17 \|At Port: Aug 19 \| In Transit: Sept 02 \| At Prep Center: Sept 15 \| At Dealer: Sept 25 Last edited by gavolant; 10-05-2011 at 02:14 PM.. Reason: typo
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10-05-2011, 02:03 PM	#4
Flipwit Private First Class 19 Rep 188 Posts Drives: 2016 M235i Join Date: Sep 2011 Location: Brocal iTrader: (2)	unless you have a pipe cutter i think the bmw exhaust needs to be installed. as for the tips, they aren't welded on you can slide them off and then onto your new one! if the tips are welded on the perf exhaust, you have have to cut them as well, just don't cut too much that you cant get the tips back on.
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10-05-2011, 06:21 PM	#5
mike the snake Captain 68 Rep 643 Posts Drives: 135i Join Date: Sep 2011 Location: Sonoma County, CA. iTrader: (1)	I just had my local muffler shop install this Magnaflow muffler on my 135. It sounds great, and only cost me $340, and shaved over 30 pounds off the car's overall weight. The sound is just what I was looking for, I opted for a Mercedes AMG single exhaust tip that fit perfectly, with matching angle cut. I may switch back to the stock style dual tips, not sure. I'm not sure if I'm missing something, but $1250 for the BMW axle back exhaust is a LOT of $$. The Magnaflow offering is $550-$800, and others I sourced were a lot of money as well. I would think that any good muffler shop can do what I've had done here for similar costs. Attached Images
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10-05-2011, 06:27 PM	#6
Kamal Indian Stig 29 Rep 1,002 Posts Drives: '03 540i M, '11 Ducati M796 Join Date: May 2008 Location: StL/CoMO iTrader: (1) Garage List 2008 BMW 135i [7.56] 2011 BMW 328i [8.00]	Couldn't be happier with my Berk Technology full street exhaust... great price as well from David@EAS. Lovely burble and I believe you can pay a little extra to get it coated black. __________________ 2008 E82 N54 \|\| Stage 2 -------- Gone to a good home.
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10-05-2011, 10:46 PM	#7
alexmtl_135i First Lieutenant 31 Rep 371 Posts Drives: 2013 C63 Coupe P31 Join Date: Oct 2011 Location: Montreal, Canada iTrader: (0)	I'm actually looking at doing the same upgrade on my 135i, Perf exhaust + Perf Power Kit. For the BMW Perf exhaust they first quoted something like 1500$ + tax + manpower, but it quickly went down to 1275. I got a quote for a stage 2 power kit because they had one they had put on a car for mechanics trainings. It was 1275$, down from 2000 ish. Overall for both + tax + manpower they said they can lower it up to 3000$. I'm still thinking about saving another 500$ and just get the stage 1 kit. The price you got for the kit is very good, it's the same price on getbmwparts.com and they are very cheap. You can also look at getting your exhaust from there if your dealer doesn't lower the prices too much. I went to listen to one of the mechanics' car with the Perf exhaust, and it sounds fucking great. I've listened to a lot of exhausts on youtube (not perfect, i know), but this one sounded very nice and quite angry .. Which is what I want to hear when I step on the gas of a 300+hp car. One last thing, the mechanic said the power kit was underestimated, and overall with power kit + exhaust I should be around 350hp. I've read a lot of posts saying that they felt it was much more than a 20hp increase, but 350 sounds quite a lot. Any thoughts on that anyone?
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10-07-2011, 10:12 AM	#8
John Dempsey Banned 31 Rep 588 Posts Drives: White 135i M-Sport Join Date: Sep 2011 Location: Encinitas iTrader: (0)	Love my berk
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10-07-2011, 11:04 AM	#9
GodSpeed135 Private 10 Rep 74 Posts Drives: BMW 135i Join Date: Sep 2011 Location: Greenville,SC iTrader: (0)	I have the Remus Race quad exhaust, it is great and has the great burble that you are looking for. For just an axle-back, the Remus really changed the exhaust note to a nice sporty european sound. It is a little high for just an axle back though. __________________ 2008 BMW 135i-BSM-Coral Red-Many Mods 2012 Ford SVT Raptor-Race Red-Mods
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10-08-2011, 01:10 AM	#10
alexmtl_135i First Lieutenant 31 Rep 371 Posts Drives: 2013 C63 Coupe P31 Join Date: Oct 2011 Location: Montreal, Canada iTrader: (0)	I actually got my perf exhaust installed today (no power kit yet). I need to test drive some more but: - Lot of noise (too much?) with windows open, not so much windows closed - Lot of burbles - Noticeable improve in performance. Not sure if it is the placebo effect but it does seem like it improved acceleration.
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10-08-2011, 03:22 AM	#11
\|2ed Private First Class 24 Rep 109 Posts Drives: 135i N55 Join Date: Nov 2010 Location: SG iTrader: (0)	when you guys mentioned 'burbles', are you running manual or dct?
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10-08-2011, 09:55 AM	#12
alexmtl_135i First Lieutenant 31 Rep 371 Posts Drives: 2013 C63 Coupe P31 Join Date: Oct 2011 Location: Montreal, Canada iTrader: (0)	N55 DCT for me. But the burbles I get are when releasing the gas around 2000RPM, so I don't think it's linked to the gearbox.
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10-08-2011, 10:26 AM	#13
gavolant Second Lieutenant 20 Rep 212 Posts Drives: 2011 AW 135i M-Sport Join Date: Jul 2010 Location: Falls Church, VA iTrader: (0)	Im assuming the berk axel back would void my warranty? __________________ 2011 AW 135i Coupe\|6MT\|Savanna Beige\|M Sport\|Navi Order Placed: July 26 \| Production Started: Aug 09 \| Production Complete: Aug 17 \|At Port: Aug 19 \| In Transit: Sept 02 \| At Prep Center: Sept 15 \| At Dealer: Sept 25
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10-08-2011, 10:29 AM	#14
ken1137 Brigadier General 89 Rep 3,732 Posts Drives: BMW S1000XR Join Date: Jun 2011 Location: Gilbert, AZ iTrader: (7) Garage List 2009 e90 335i [6.40]	I would recommend Berk street performance exhaust with ceramic coating (black). Deeper tone than stock..you have an N55 so I would keep the mid pipe. Street legal(?), then AR catted down pipes if you want DPs. Otherwise, the Berk axle back will be your best bet...a bolt on axle back is not going to void your warranty and its only $700-$800 and you have black tips __________________ BMWCCA member
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10-08-2011, 10:34 AM	#15
cooler2442 Brigadier General 477 Rep 4,154 Posts Drives: 1/18 Monte Carlo Blue E92 M3 Join Date: Apr 2011 Location: Los Angeles iTrader: (6) Garage List 2016 Porsche GT4 [0.00]	+1 for Berk. It shouldn't void your warranty at all. I am sure your dealership gets cars that have changed exhausts to different ones on a weekly basis.
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10-08-2011, 10:56 AM	#16
gavolant Second Lieutenant 20 Rep 212 Posts Drives: 2011 AW 135i M-Sport Join Date: Jul 2010 Location: Falls Church, VA iTrader: (0)	Thanks guys! __________________ 2011 AW 135i Coupe\|6MT\|Savanna Beige\|M Sport\|Navi Order Placed: July 26 \| Production Started: Aug 09 \| Production Complete: Aug 17 \|At Port: Aug 19 \| In Transit: Sept 02 \| At Prep Center: Sept 15 \| At Dealer: Sept 25
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10-08-2011, 02:16 PM	#17
Eyeman Colonel 121 Rep 2,037 Posts Drives: 2008 135 blk, blk, step Join Date: Jan 2009 Location: Atlanta, GA iTrader: (0) Garage List 1994 Porsche 968 Cab [0.00] 2017 AMG GTS [0.00] 1994 Porsche 968 Coupe [0.00] 1977 Mercedes 450SE ... [0.00] 2008 135 [8.00]	It's pretty much "illegal" to do anything that modifies the catalytic converters on a car. So technically all you can do is change the axleback. However, if you live in an area that does not require emissions inspection this modification will probably never be noticed. Even in emissions inspecting areas sometimes you can still pass depending on what you did and how they test. As far as BMW goes they might try to not cover warranty work if you've modified your car in anyway. The way I understand it they really can't void your warranty, they just refuse to do warranty work by blaming your mods (Btw this is the case with my car, it's been written up for all its mods by BMW). Most likely this will only come up if you decide to replace the stock downpipes. So an axleback is very safe, midpipes still probably safe. I personally think MadDad makes the best axlebacks and midpipes for the money for our cars. They make a whisper or street series axleback. Great midpipe too. Don't do a downpipe mod unless you are very serious about modding. __________________ Injen, RR OCC, MadDad Whisper, donut spare, 19x8.5et43fr 19x9.5et45r Volk LE37's, rear fenders rolled/pulled, PSS4S 225/35fr 255/30r, KW V1's, AR coated catless dps, Cross strutbar, CF grills and license plate holder, iCarbon diffuser, ETS black anodized FMIC, M3 control arms, Quaife, ER chargepipe, ForgeDV's, Topspeed Custom Tune, V3sims, Braille, Andrey_GTA rear hub mod, Ebay Mstyle front bumper and performance style side skirts.
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08-15-2016, 06:05 PM	#18
AGM2 Lieutenant 298 Rep 471 Posts Drives: M2 LBB 17 Join Date: Jul 2016 Location: Land O Lakes FL iTrader: (0)	Perfect Sound perfect!!! MadDad Midpipe & MadDad Euro Sport Street Exhaust https://www.youtube.com/watch?v=I7jtsMd5TBg#password http://www.daddysscp.com/BMW_135i_Exhaust_s/31.htm Last edited by AGM2; 08-16-2016 at 05:44 AM..
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