straight pipe...?

Chitown335i · 03-25-2015, 06:48 PM

Having cat less DPs already, does eliminating the secondary cats throw codes? I was thinking about just going straight pipe down from the downpipes...anysound clips on this...basically I would remove the muffler as well. how loud and drone it is doesn't bother me....gonna be a track car more or less....just wondering about the o2 sensor....there is one on the secondAries right?

Fast35i · 03-25-2015, 08:35 PM

It's going to sound loud & raspy
I don't think u would want that kind of sound for ur car. Replace the cats with hi flow resonator.

Chitown335i · 03-25-2015, 08:43 PM

Ewwww. raspy.....no definitely don't want that. Top bad we aren't v8s with a nice growl

924er · 03-26-2015, 02:10 AM

Quote:

Originally Posted by Chitown335i

Ewwww. raspy.....no definitely don't want that. Top bad we aren't v8s with a nice growl

Sorry man no growl for you. Lol

To be honest I still love the way a 335i sounds even stock. It's more of a humble growl. I'm running downpipes with a stock exhaust and it's like heaven when you hear ur twins spooling

waterbottle1 · 03-26-2015, 02:45 AM

i have a catless dp and muffler delete, pretty loud enough. ! id be happy with a little less actually. .
its enough to wake all the houses around me. and get the death stares from grumpy people in morning.

03-25-2015, 06:48 PM	#1
Chitown335i Private First Class 28 Rep 182 Posts Drives: 2007 Smoky Graphite 335i Join Date: May 2014 Location: Joliet, IL iTrader: (0)	straight pipe...? Having cat less DPs already, does eliminating the secondary cats throw codes? I was thinking about just going straight pipe down from the downpipes...anysound clips on this...basically I would remove the muffler as well. how loud and drone it is doesn't bother me....gonna be a track car more or less....just wondering about the o2 sensor....there is one on the secondAries right? __________________ 07 335i...M2 exhaust...Macht Schnell DP's...VRSF 7" FMIC...MMP inlets....VRSF Chargpipe with HKS BOV....MHD w/WedgeTuning.... RB Stealths!!!....MFactory LSD...Stage 2 Fuel It...N20 map sensor....265/40/18 Sticky Mickeys in the rear
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03-25-2015, 08:35 PM	#2
Fast35i Private First Class 19 Rep 184 Posts Drives: 2016 f82 M4 , 2011 335is cou Join Date: Aug 2014 Location: Bowie iTrader: (0)	It's going to sound loud & raspy I don't think u would want that kind of sound for ur car. Replace the cats with hi flow resonator.
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03-25-2015, 08:43 PM	#3
Chitown335i Private First Class 28 Rep 182 Posts Drives: 2007 Smoky Graphite 335i Join Date: May 2014 Location: Joliet, IL iTrader: (0)	Ewwww. raspy.....no definitely don't want that. Top bad we aren't v8s with a nice growl
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03-26-2015, 02:45 AM	#5
waterbottle1 Major 153 Rep 1,118 Posts Drives: F80 M3 Join Date: Dec 2012 Location: Perth AUSTRALIA iTrader: (3)	i have a catless dp and muffler delete, pretty loud enough. ! id be happy with a little less actually. . its enough to wake all the houses around me. and get the death stares from grumpy people in morning.
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