CAT DELETE

mazez · 02-24-2015, 10:47 PM

Does a 2nd cat delete get rid of my o2 sensors. my bank 2 sensor 2 is out and I wanted to do a cat delete in the future so didn't want to replace the o2 sensor for no reason if it was just gonna get deleted later. Is a 2nd cat delete better than the 1st cats in any situation?

Mike. · 02-24-2015, 10:49 PM

Just a simple question, did you do any searching on this topic?

mazez · 02-24-2015, 10:59 PM

I actually did, and still am.

00e46sedan · 02-24-2015, 11:11 PM

2nd cat delete won't give u any emissions issues, just the Primary cats if that's what your asking

Mike. · 02-24-2015, 11:23 PM

I will say this, the secondary cat delete does not get rid of the secondarie sensors as they are before the secondary Cats. The primary header delete will net you 20 hp then secondary cats about 5-10hp.

Tom Droze · 02-24-2015, 11:42 PM

Quote:

Originally Posted by Mike.

I will say this, the secondary cat delete does not get rid of the secondarie sensors as they are before the secondary Cats. The primary header delete will net you 20 hp then secondary cats about 5-10hp.

Point of clarification here please, primary delete will net about 20 hp and then if you do the secondary delete in addition to the primary delete you will net another 5 to 10 horsepower, correct?

Is that 5 to 10 hp still obtainable if you do the secondary delete and leave the primary cats in place?

MarkkyyMan · 02-25-2015, 12:12 AM

Quote:

Originally Posted by mazez

Does a 2nd cat delete get rid of my o2 sensors. my bank 2 sensor 2 is out and I wanted to do a cat delete in the future so didn't want to replace the o2 sensor for no reason if it was just gonna get deleted later. Is a 2nd cat delete better than the 1st cats in any situation?

Sensor 2 is just checking the condition of the primary cat, nothing to do with secondaries.

Mike. · 02-25-2015, 08:48 AM

Quote:

Originally Posted by Tom Droze

Point of clarification here please, primary delete will net about 20 hp and then if you do the secondary delete in addition to the primary delete you will net another 5 to 10 horsepower, correct?

Is that 5 to 10 hp still obtainable if you do the secondary delete and leave the primary cats in place?

Those are separate gains. Either or.

Yes on the second question too.

02-24-2015, 10:47 PM	#1
mazez Private 4 Rep 64 Posts Drives: Daughter of the 335 and 328 Join Date: Jan 2015 Location: fairfax iTrader: (0)	CAT DELETE Does a 2nd cat delete get rid of my o2 sensors. my bank 2 sensor 2 is out and I wanted to do a cat delete in the future so didn't want to replace the o2 sensor for no reason if it was just gonna get deleted later. Is a 2nd cat delete better than the 1st cats in any situation?
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02-24-2015, 10:49 PM	#2
Mike. Mike: Everyone's Pal 2043 Rep 2,973 Posts Drives: F80 M3 Join Date: May 2013 Location: Eastern Long Island iTrader: (5) Garage List 2013 BMW 335xi [10.00]	Just a simple question, did you do any searching on this topic?
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02-24-2015, 10:59 PM	#3
mazez Private 4 Rep 64 Posts Drives: Daughter of the 335 and 328 Join Date: Jan 2015 Location: fairfax iTrader: (0)	I actually did, and still am.
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02-24-2015, 11:11 PM	#4
00e46sedan Captain 70 Rep 699 Posts Drives: 16’ F13 640i M Sport Join Date: Mar 2014 Location: Colton iTrader: (4)	2nd cat delete won't give u any emissions issues, just the Primary cats if that's what your asking
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02-24-2015, 11:23 PM	#5
Mike. Mike: Everyone's Pal 2043 Rep 2,973 Posts Drives: F80 M3 Join Date: May 2013 Location: Eastern Long Island iTrader: (5) Garage List 2013 BMW 335xi [10.00]	I will say this, the secondary cat delete does not get rid of the secondarie sensors as they are before the secondary Cats. The primary header delete will net you 20 hp then secondary cats about 5-10hp.
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