Custom quad exhaust help

hawkm3 · 08-17-2014, 12:11 PM

Hey guys so one of my buddys is a great welder and builds alot of performance parts for cars and he said he can build me a custom quad exhaust however i need some help. Does anyone know the size and where i can get the adapter donut piece that goes from the mid pipe to the muffler? Also he said buying dual exhaust tips would save him time on making the y pipe for them but i dont want to buy some and then find out then wont clear the exhaust cutout on the diffuser so does anyone know where i can get some that will clear? I found these but i think they are to much spread apart to clear http://m.ebay.com/itm/221338582971?nav=SEARCH and last but bot least, had anyone cut the oem diffuser to add an extra cut out for a quad exhaust? Thanks for reading guys and hope i can get some feedback

hawkm3 · 08-17-2014, 05:39 PM

Anybody ?

Dackelone · 08-17-2014, 06:59 PM

Maybe these pics will help you think something up. he problem with the 1er is that the battery box gets in the way of the "extra" pipes. You will need to but the 1M battery box. There was a German company that offered a four tail pipe conversion.... but it was very pricey(~2K euros) and it did not work for 135i's bc the exhaust pipes were too small. You will need to do your homework on selecting the proper exhaust O.D. pipes. G.L.

Dack

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hawkm3 · 08-17-2014, 07:04 PM

Quote:

Originally Posted by Dackelone

Maybe these pics will help you think something up. he problem with the 1er is that the battery box gets in the way of the "extra" pipes. You will need to but the 1M battery box. There was a German company that offered a four tail pipe conversion.... but it was very pricey(~2K euros) and it did not work for 135i's bc the exhaust pipes were too small. You will need to do your homework on selecting the proper exhaust O.D. pipes. G.L.

Dack

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Is the battery box located inside the black undertray? This whole time i thought that space was empty? Is that were the battery is located? I just had the car for a while so i havent look under there much lol i know the batter is in the trunk but i didnt put two and two together, my buddy is a great welder but i dont want to give him to much of a hard task

hawkm3 · 08-17-2014, 07:06 PM

Here is something he welded before, for an evo x

08-17-2014, 12:11 PM	#1
hawkm3 Lieutenant 57 Rep 477 Posts Drives: 2009 135i Join Date: Jun 2014 Location: Central Cali iTrader: (4)	Custom quad exhaust help Hey guys so one of my buddys is a great welder and builds alot of performance parts for cars and he said he can build me a custom quad exhaust however i need some help. Does anyone know the size and where i can get the adapter donut piece that goes from the mid pipe to the muffler? Also he said buying dual exhaust tips would save him time on making the y pipe for them but i dont want to buy some and then find out then wont clear the exhaust cutout on the diffuser so does anyone know where i can get some that will clear? I found these but i think they are to much spread apart to clear http://m.ebay.com/itm/221338582971?nav=SEARCH and last but bot least, had anyone cut the oem diffuser to add an extra cut out for a quad exhaust? Thanks for reading guys and hope i can get some feedback __________________ FBO 09 135i Space Grey Metallic ///M Sport/Premium Package JB4 40% E85 / BMS Intakes / VRSF FMIC / Berk Resonated Midpipes / Custom Muffler Delete / N54 tuning downpipes / VMR v710 Wheels
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08-17-2014, 05:39 PM	#2
hawkm3 Lieutenant 57 Rep 477 Posts Drives: 2009 135i Join Date: Jun 2014 Location: Central Cali iTrader: (4)	Anybody ? __________________ FBO 09 135i Space Grey Metallic ///M Sport/Premium Package JB4 40% E85 / BMS Intakes / VRSF FMIC / Berk Resonated Midpipes / Custom Muffler Delete / N54 tuning downpipes / VMR v710 Wheels
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08-17-2014, 06:59 PM	#3
Dackelone European Editor 10539 Rep 22,992 Posts Drives: N54 e82 Join Date: Feb 2010 Location: Bayern, Germany iTrader: (1)	Maybe these pics will help you think something up. he problem with the 1er is that the battery box gets in the way of the "extra" pipes. You will need to but the 1M battery box. There was a German company that offered a four tail pipe conversion.... but it was very pricey(~2K euros) and it did not work for 135i's bc the exhaust pipes were too small. You will need to do your homework on selecting the proper exhaust O.D. pipes. G.L. Dack __________________ Dackel's European Delivery Museum Guide
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08-17-2014, 07:06 PM	#5
hawkm3 Lieutenant 57 Rep 477 Posts Drives: 2009 135i Join Date: Jun 2014 Location: Central Cali iTrader: (4)	Here is something he welded before, for an evo x Attached Images __________________ FBO 09 135i Space Grey Metallic ///M Sport/Premium Package JB4 40% E85 / BMS Intakes / VRSF FMIC / Berk Resonated Midpipes / Custom Muffler Delete / N54 tuning downpipes / VMR v710 Wheels
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