downpipe ?

beemer11 · 07-13-2010, 04:05 PM

can i install just downpipes on my car? or do i need to install other stuff to go along with the DP's like aftermarket exhaust or something like that?

Forcefed3 · 07-13-2010, 04:16 PM

you can install just downpipes.

SV Concepts III · 07-14-2010, 02:08 PM

You can just do downpipes but will get better performance if you do software and an exhaust.

ar design · 07-14-2010, 02:28 PM

Quote:

Originally Posted by Nick@Jlevi SW

You can just do downpipes but will get better performance if you do software and an exhaust.

cstavaru · 07-14-2010, 03:26 PM

You will get O2 error codes if you install the downpipes (and suppress pre-catalysts) without at least a downpipe fix (which is a device tricking the O2 sensors into thinking that there are catalysts installed). There is a downpipe fix available from BMS, but it needs to be installed in the ECU compartment.

07-13-2010, 04:05 PM	#1
beemer11 Enlisted Member 6 Rep 47 Posts Drives: 335i Join Date: Mar 2010 Location: 609 iTrader: (0)	downpipe ? can i install just downpipes on my car? or do i need to install other stuff to go along with the DP's like aftermarket exhaust or something like that?
	Appreciate 0 Tweet Quote

07-13-2010, 04:16 PM	#2
Forcefed3 Banned 131 Rep 4,732 Posts Drives: 2008 335i Join Date: May 2010 Location: South iTrader: (2) Garage List 2008 335i [1.00]	you can install just downpipes.
	Appreciate 0 Quote

07-14-2010, 02:08 PM	#3
SV Concepts III Lieutenant General 381 Rep 16,968 Posts Drives: BMW Duh Join Date: Apr 2005 Location: Santa Clara iTrader: (13)	You can just do downpipes but will get better performance if you do software and an exhaust.
	Appreciate 0 Quote

07-14-2010, 03:26 PM	#5
cstavaru Brigadier General 328 Rep 3,262 Posts Drives: 2009 335i M Sport Sedan 6MT Join Date: Aug 2008 Location: Bucharest, Romania iTrader: (0)	You will get O2 error codes if you install the downpipes (and suppress pre-catalysts) without at least a downpipe fix (which is a device tricking the O2 sensors into thinking that there are catalysts installed). There is a downpipe fix available from BMS, but it needs to be installed in the ECU compartment. __________________ Mods(click): Cobb + RB Turbos \| Aquamist HFS-4 Meth \| Drexler LSD \| Bilstein B12 Pro-Kit \| Custom K&N Apollo Intake \| Wagner Intercooler \| Macht Schnell Downpipes \| BMW Performance Power Kit \| BMW Performance Exhaust \| BMW Performance Short Shifter \| M3 Subframe Bushings \|
	Appreciate 0 Quote