Exhaust Setup Question

BRD1234 · 02-19-2014, 04:33 PM

Hello everyone.. I am looking to do a secondary cat delete with a muffler delete with an X-pipe and 2.5" stainless steel piping all the way. My question is what is everyones opinion on it? I've heard that it tends to have an extremely loud drone but I rarely do any highway driving. How bad would it be driving in the city and too and from school.

Any insight is good insight. Thanks to whoever responds!

Ingeniator · 02-19-2014, 05:37 PM

If your going custom bent why not go with 3" oval. Stock piping would flow just as well with a muffler delete. IMO it is a waste of money on this platform with any stock frame turbo. Do downpipes/primary cat delete for spool/flow and only do the exhaust for sound.

BRD1234 · 02-19-2014, 06:33 PM

Quote:

Originally Posted by Ingeniator

If your going custom bent why not go with 3" oval. Stock piping would flow just as well with a muffler delete. IMO it is a waste of money on this platform with any stock frame turbo. Do downpipes/primary cat delete for spool/flow and only do the exhaust for sound.

I would do something like that if what I was doing already didn't cost $550 just for the full custom. If I asked them to do a 3" it would have shot the price up a ton I bet and I wouldnt be able to justify spending $900 on a custom setup that I'm not even sure about yet.

AlpineSwift · 02-19-2014, 06:43 PM

In sections: Dual 2.5" in, to single 3.5" mid, to dual out w/4" tips = Great setup to prep for future single turbo.

VSRF does a similar setup but has a muffler in place at the rear. Better alternative to custom setup like you're talking about.
Just my .02

02-19-2014, 04:33 PM	#1
BRD1234 Second Lieutenant 18 Rep 283 Posts Drives: E92 335i Coupe Join Date: Apr 2013 Location: Miami, Fl iTrader: (0)	Exhaust Setup Question Hello everyone.. I am looking to do a secondary cat delete with a muffler delete with an X-pipe and 2.5" stainless steel piping all the way. My question is what is everyones opinion on it? I've heard that it tends to have an extremely loud drone but I rarely do any highway driving. How bad would it be driving in the city and too and from school. Any insight is good insight. Thanks to whoever responds! __________________ 335i Coupe 6MT Montego Blue
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02-19-2014, 05:37 PM	#2
Ingeniator Major 34 Rep 1,093 Posts Drives: 07 335XI(90) 09 135I(82) Join Date: Nov 2013 Location: Fort Mac, Alberta iTrader: (1)	If your going custom bent why not go with 3" oval. Stock piping would flow just as well with a muffler delete. IMO it is a waste of money on this platform with any stock frame turbo. Do downpipes/primary cat delete for spool/flow and only do the exhaust for sound. __________________ 07 335XI (A008006) 6AT ~94K miles JB4 G5 ISO VSRF DP's 09 135I M (VK80379) 6MT. Race Project car. 1) Install Cobb/piggyback? and Motiv 600 Kit[HTA3076R w/ tial .82] 2) JRZ or Moton suspension. 3) Build high flow intake manifold with multi-port fuel and relocate OFH 4) Build full cage 5) Complete staged twin setup with HTA4205R [w/Tial 1.16] 6) Complete dry sump system
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02-19-2014, 06:43 PM	#4
AlpineSwift Colonel 77 Rep 2,114 Posts Drives: 2008 335Xi Coupé Join Date: Feb 2010 Location: Castle Rock, CO iTrader: (3)	In sections: Dual 2.5" in, to single 3.5" mid, to dual out w/4" tips = Great setup to prep for future single turbo. VSRF does a similar setup but has a muffler in place at the rear. Better alternative to custom setup like you're talking about. Just my .02 __________________ E92 '08 335Xi 6AT - Cobb AP3 Tuned by MAC Autosport, Original Prototype Xi DOCRace 6266 Single Turbo Swap, VRSF CP w/Synapse BOV, VRSF 7" FMIC, BMS Cowl, H&R Coilovers, Renn Motorsport RS-51's, Stoptech Stage 2 Slotted, xHP Stage 3, Earl's Racing Oil Cooler, Turner Boost Gauge, M3 Lip Spoiler. Standing Mile Record Holder for Xi over a mile high: 168.2MPH @ 5512'; The Colorado Mile hosted by The US Mile.
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