Custom Exhuast

slmdgee · 11-14-2011, 04:53 PM

I plan on getting a 3inch down pipe in to a 3inch piping that ends with a muffler in to quad tips. You think its cheaper to just get the catback or do this custom?

Let me know cause ill have the 335xi sedan (n54) By march. So i would like to think about everything.

nafoo · 11-14-2011, 05:03 PM

Best bet would be to contact a local muffler shop and ask how much it would cost. I'm sure you will have to choose between the quality of the piping, type of muffler, tips, etc.

slmdgee · 11-14-2011, 05:15 PM

Yeah i got a meinke around here but i was thinking of doing this with my friend. He has a welder so we could just buy the stainless steel piping and do this.

But the exhuast i really like is turner motor-sports, and the Ams. I dont really want to leave my car at a muffler shop, but i think a 3 in stainless steel piping in to a muffler and just weld in 4 tips. I want this to be perfect, this could either be cheap or expensive.

39nas-t · 11-21-2011, 07:57 AM

That is what I did, custom exhaust 3 inch downpipes and 3 inch single with 1 borla and 3.5 inch tips....

slmdgee · 11-21-2011, 01:28 PM

Wow that looks hella clean! How much did that run you and do you have any sounds clips?

39nas-t · 11-21-2011, 01:31 PM

I paid 1650 for everything including downpipes...
now i cut the cats because it is 3" goin into the cats then welded 3inch back so that is my downpipe setup but it works and sounds great!
send me your phone number I have sound clips on my phone and i will text message you the track runs

39nas-t · 11-21-2011, 02:00 PM

Hoping the videos upload

slmdgee · 11-21-2011, 02:11 PM

So basically you bought the 3inch down pipe then welded on a straight pipe all the way to the borla mufflers.? I was going to get a 3inch downpipe and a borla catback, but thats 3inch to 2.5 inch. I want to hear your set up.

cbturbo335i · 11-22-2011, 11:39 AM

I have a 07 e92 335i 6 speed manual. I had meineke cut off my mufflers, center resonators and cats and weld 3" piping in there place, it sounds soooo good. There is no performance difference between straight pipes and aftermarket mufflers and aftermarket catless downpipes, they are both straight through. The straight pipes sound soooo much better and you save thousands of dollars!!!!! Meineke charged me $400 for everything. The exhaust is really loud but its not like the annoying high pitch hondas. It has a really low grumble like a mustang or camaro. They welded the O2 sensors from the old cats on to the straight pipes so the car would not throw a code and can pass inspection.

Syndicategt · 11-22-2011, 11:44 AM

Just FYI,

Several people have done a custom single 3 inch exhaust and reverted back to stock/aftermarket. It's extremely lound and has horendous drone, listen to YouTube clips of the HPF's single 3".

slmdgee · 11-22-2011, 02:23 PM

Quote:

Originally Posted by cbturbo335i

I have a 07 e92 335i 6 speed manual. I had meineke cut off my mufflers, center resonators and cats and weld 3" piping in there place, it sounds soooo good. There is no performance difference between straight pipes and aftermarket mufflers and aftermarket catless downpipes, they are both straight through. The straight pipes sound soooo much better and you save thousands of dollars!!!!! Meineke charged me $400 for everything. The exhaust is really loud but its not like the annoying high pitch hondas. It has a really low grumble like a mustang or camaro. They welded the O2 sensors from the old cats on to the straight pipes so the car would not throw a code and can pass inspection.

Can you post of video of this on here?

bigdaddycane · 11-22-2011, 02:41 PM

39nas-t,

why didn't you just go with an aftermarket down pipe?

slmdgee · 11-22-2011, 04:04 PM

Thats what i would have done the 3inch down pipe, then with a custom exhuast. But i think i am gunna get the 3inch downpipe and borla cat back with dual tips.

zeenon53 · 11-22-2011, 08:01 PM

I was thinking of getting the MS 3" downpipes and cutting off the flange where it goes to 2.5" and re-welding on a 3" flange. Then making a custom 3" exhaust. I'm surprised there isn't a TRUE 3" turbo back exhaust on the market for our cars. Maybe COBB can make it happen?

11-14-2011, 04:53 PM	#1
slmdgee Usofstance 81 Rep 671 Posts Drives: 328I 6SPD Join Date: Nov 2011 Location: Long Island iTrader: (0)	Custom Exhuast I plan on getting a 3inch down pipe in to a 3inch piping that ends with a muffler in to quad tips. You think its cheaper to just get the catback or do this custom? Let me know cause ill have the 335xi sedan (n54) By march. So i would like to think about everything.
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11-14-2011, 05:03 PM	#2
nafoo Major 46 Rep 1,145 Posts Drives: Boosted Bimmer Join Date: Jan 2010 Location: Earth iTrader: (15)	Best bet would be to contact a local muffler shop and ask how much it would cost. I'm sure you will have to choose between the quality of the piping, type of muffler, tips, etc.
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11-14-2011, 05:15 PM	#3
slmdgee Usofstance 81 Rep 671 Posts Drives: 328I 6SPD Join Date: Nov 2011 Location: Long Island iTrader: (0)	Yeah i got a meinke around here but i was thinking of doing this with my friend. He has a welder so we could just buy the stainless steel piping and do this. But the exhuast i really like is turner motor-sports, and the Ams. I dont really want to leave my car at a muffler shop, but i think a 3 in stainless steel piping in to a muffler and just weld in 4 tips. I want this to be perfect, this could either be cheap or expensive.
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11-21-2011, 07:57 AM	#4
39nas-t Work Smarter! 15 Rep 105 Posts Drives: TBSS, X5M(Wife's) Join Date: May 2011 Location: Rochester, MI iTrader: (0)	That is what I did, custom exhaust 3 inch downpipes and 3 inch single with 1 borla and 3.5 inch tips.... Attached Images
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11-21-2011, 01:28 PM	#5
slmdgee Usofstance 81 Rep 671 Posts Drives: 328I 6SPD Join Date: Nov 2011 Location: Long Island iTrader: (0)	Wow that looks hella clean! How much did that run you and do you have any sounds clips? __________________ 2013 328i 6MT Bagged IG Stu_UnitedStatesOfStance United States Of Stance
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11-21-2011, 01:31 PM	#6
39nas-t Work Smarter! 15 Rep 105 Posts Drives: TBSS, X5M(Wife's) Join Date: May 2011 Location: Rochester, MI iTrader: (0)	I paid 1650 for everything including downpipes... now i cut the cats because it is 3" goin into the cats then welded 3inch back so that is my downpipe setup but it works and sounds great! send me your phone number I have sound clips on my phone and i will text message you the track runs
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11-21-2011, 02:00 PM	#7
39nas-t Work Smarter! 15 Rep 105 Posts Drives: TBSS, X5M(Wife's) Join Date: May 2011 Location: Rochester, MI iTrader: (0)	Hoping the videos upload
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11-21-2011, 02:11 PM	#8
slmdgee Usofstance 81 Rep 671 Posts Drives: 328I 6SPD Join Date: Nov 2011 Location: Long Island iTrader: (0)	So basically you bought the 3inch down pipe then welded on a straight pipe all the way to the borla mufflers.? I was going to get a 3inch downpipe and a borla catback, but thats 3inch to 2.5 inch. I want to hear your set up. __________________ 2013 328i 6MT Bagged IG Stu_UnitedStatesOfStance United States Of Stance
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11-22-2011, 11:39 AM	#9
cbturbo335i New Member 0 Rep 6 Posts Drives: 335i coupe 6 speed w/ nav!!! Join Date: Sep 2011 Location: Greensboro, NC iTrader: (0)	I have a 07 e92 335i 6 speed manual. I had meineke cut off my mufflers, center resonators and cats and weld 3" piping in there place, it sounds soooo good. There is no performance difference between straight pipes and aftermarket mufflers and aftermarket catless downpipes, they are both straight through. The straight pipes sound soooo much better and you save thousands of dollars!!!!! Meineke charged me $400 for everything. The exhaust is really loud but its not like the annoying high pitch hondas. It has a really low grumble like a mustang or camaro. They welded the O2 sensors from the old cats on to the straight pipes so the car would not throw a code and can pass inspection.
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11-22-2011, 11:44 AM	#10
Syndicategt Brigadier General 156 Rep 3,730 Posts Drives: 335i Join Date: Sep 2009 Location: Nor Cal iTrader: (11)	Just FYI, Several people have done a custom single 3 inch exhaust and reverted back to stock/aftermarket. It's extremely lound and has horendous drone, listen to YouTube clips of the HPF's single 3". __________________ 2008 BMW 335i e90 - Sold - Rob Beck Turbos / PROcede V5 / Aquamist HFS-4 / AR Downpipes / AE Exhaust / ER Comp FMIC / ER CP / TiAL BOV / Custom Intake / RPI Scoops / Quaife LSD / Swift-Koni Coilovers / DSS HS / Morr VS8.2 Sig Black / Michelin PSS / P3 Boost Guage / M3 body / M3 steering wheel / Adam's Rotors / Hawk HPS / SS lines /
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11-22-2011, 02:41 PM	#12
bigdaddycane I even mod my cereal 249 Rep 3,445 Posts Drives: 11 ZCP DCT M3 14 328d 21 GT4 Join Date: Aug 2009 Location: Northern Va iTrader: (53) Garage List 2021 Porsche GT4 [0.00] 2014 BMW 328d Xdriv ... [0.00] 2011 BMW M3 [0.00]	39nas-t, why didn't you just go with an aftermarket down pipe? __________________ 2011 Mineral White M3 ZCP - Opticoat, Ventureshield, some CF, B&B exhaust, AFE Intake Vorsteiner VFF 101s Ohlins 2014 Mineral White 328d Xdrive Wagon - Opticoat, Ventureshield, B8s, H&R, Apex SM-10s Hawk Pads 2021 718 Cayman GT4 - Fire extinguiser, Neodyme GT3 Wheel Color
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11-22-2011, 04:04 PM	#13
slmdgee Usofstance 81 Rep 671 Posts Drives: 328I 6SPD Join Date: Nov 2011 Location: Long Island iTrader: (0)	Thats what i would have done the 3inch down pipe, then with a custom exhuast. But i think i am gunna get the 3inch downpipe and borla cat back with dual tips. __________________ 2013 328i 6MT Bagged IG Stu_UnitedStatesOfStance United States Of Stance
	Appreciate 0 Quote

11-22-2011, 08:01 PM	#14
zeenon53 Major 39 Rep 1,153 Posts Drives: BMW Join Date: Apr 2010 Location: obx iTrader: (3)	I was thinking of getting the MS 3" downpipes and cutting off the flange where it goes to 2.5" and re-welding on a 3" flange. Then making a custom 3" exhaust. I'm surprised there isn't a TRUE 3" turbo back exhaust on the market for our cars. Maybe COBB can make it happen?
	Appreciate 0 Quote