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      08-04-2008, 03:19 AM   #1
Papa13
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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
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      08-04-2008, 02:41 PM   #2
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No one?
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M-tech 330i JB/TERRA modded - RIP
n54 135i AW/CR JB3 FBO 420rwhp 444rwtq - 11.5 sec 1/4 mile @ 122mph - RIP
e53 X5 4.8is M///BLUE/M///SUEDE - 357awhp 369awtq - The Snow Beast!
n54 135i JB/CR JB4 FBO - tc kline coilovers - 1/4 mile and dyno PENDING
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      08-12-2008, 11:05 AM   #3
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the resonator is the same? cause i have my resonator cut off and installed a Y
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      08-12-2008, 01:57 PM   #4
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Originally Posted by wuufer001 View Post
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.
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M-tech 330i JB/TERRA modded - RIP
n54 135i AW/CR JB3 FBO 420rwhp 444rwtq - 11.5 sec 1/4 mile @ 122mph - RIP
e53 X5 4.8is M///BLUE/M///SUEDE - 357awhp 369awtq - The Snow Beast!
n54 135i JB/CR JB4 FBO - tc kline coilovers - 1/4 mile and dyno PENDING
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