Pros and Cons of...? - BMW 3-Series (E90 E92) Forum

Papa13 · 08-04-2008, 03:19 AM

Pros and cons of cutting the secondary cats off a e90 325i?

Please be as detailed as possible. For example; if power is gained, would it be low end or high end? Also, please post both pros and cons.

Tried searching, didn't come up with the exact answer I was looking for.

Thanks for any help

Papa13 · 08-04-2008, 02:41 PM

No one?

wuufer001 · 08-12-2008, 11:05 AM

the resonator is the same? cause i have my resonator cut off and installed a Y

Papa13 · 08-12-2008, 01:57 PM

Quote:

Originally Posted by wuufer001

the resonator is the same? cause i have my resonator cut off and installed a Y

Nah, the resonator is different. If you looked under your car when you were getting your resonator cut off. You would have seen two smaller cats in front of the resonator. The resonator is only for sound while your cats are for emissions. But, you have 2 sets of cats, so taking off one would give you a good power increase and you still wouldn't be destroying the environment.

08-04-2008, 03:19 AM	#1
Papa13 Go Gators! Drives: e82 / e90 / e53 / e46 Join Date: Nov 2005 Location: Tampa / SoCal Posts: 1,305 iTrader: (5) Garage List 2009 135i [0.00]	Pros and Cons of...? Pros and cons of cutting the secondary cats off a e90 325i? Please be as detailed as possible. For example; if power is gained, would it be low end or high end? Also, please post both pros and cons. Tried searching, didn't come up with the exact answer I was looking for. Thanks for any help __________________ M-tech e90 - RIP 11.5 sec 1/4 mile @ 122mph N54 135i - RIP e53 X5 4.8is - The beast!
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08-04-2008, 02:41 PM	#2
Papa13 Go Gators! Drives: e82 / e90 / e53 / e46 Join Date: Nov 2005 Location: Tampa / SoCal Posts: 1,305 iTrader: (5) Garage List 2009 135i [0.00]	No one? __________________ M-tech e90 - RIP 11.5 sec 1/4 mile @ 122mph N54 135i - RIP e53 X5 4.8is - The beast!

08-12-2008, 11:05 AM	#3
wuufer001 Colonel Drives: 2006 E90 M/T Join Date: Mar 2006 Location: DFW, TX//Taiwan//South Africa Posts: 2,302 iTrader: (5) Garage List 2006 325i [4.67]	the resonator is the same? cause i have my resonator cut off and installed a Y __________________

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