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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Can i delete secondary cats and stay legal in PA?



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      11-14-2012, 05:52 PM   #1
AGood22
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Can i delete secondary cats and stay legal in PA?

I am getting a some work done to my car and i was wandering if i could remove my secondary cats and still pass inspection in pennsylvania?
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      11-14-2012, 08:21 PM   #2
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I think technically you can't legally remove any emissions equipment. That said, the car will still pass the sniff test with just the primaries.
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      11-15-2012, 09:18 AM   #3
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Im by Philly and want to take my secondaries out too. I have looking at using a sawz all to take the off at their original welds, gut the cats, then have them welded in the same way. This would allow for it to be gutted but not be visually noticeable. Also wouldnt have to have tubes bent up, etc.
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      11-15-2012, 02:12 PM   #4
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Quote:
Originally Posted by RupertPupkin View Post
Im by Philly and want to take my secondaries out too. I have looking at using a sawz all to take the off at their original welds, gut the cats, then have them welded in the same way. This would allow for it to be gutted but not be visually noticeable. Also wouldnt have to have tubes bent up, etc.
how can you gut the cat?
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      11-15-2012, 02:23 PM   #5
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Once you have the cat off you can break the innards. It is kind of difficult, but usually a long drill bit, punch and hammer, maybe dremel. WOuldnt be fun but did it on my Ford Turbo diesel truck and it took a few hours but well worth it. once theyre broken pieces will just fall out

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how can you gut the cat?
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      11-15-2012, 02:28 PM   #6
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Quote:
Originally Posted by RupertPupkin View Post
Once you have the cat off you can break the innards. It is kind of difficult, but usually a long drill bit, punch and hammer, maybe dremel. WOuldnt be fun but did it on my Ford Turbo diesel truck and it took a few hours but well worth it. once theyre broken pieces will just fall out
Thank you i am probably going to do this in a week or so thanks for the tip
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      11-15-2012, 02:45 PM   #7
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No doubt. Let me know how it goes and take pics if possible. I just need to find someone to weld mine back in and ill cut them off instantly. It will be a pain but probably worth it. Power gains are debateable. One guy here dynoed an additional ten at wheels but who knows if its real or not. Heard makes it a tiny bit raspier too.



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Thank you i am probably going to do this in a week or so thanks for the tip
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      11-15-2012, 02:51 PM   #8
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Quote:
Originally Posted by RupertPupkin View Post
No doubt. Let me know how it goes and take pics if possible. I just need to find someone to weld mine back in and ill cut them off instantly. It will be a pain but probably worth it. Power gains are debateable. One guy here dynoed an additional ten at wheels but who knows if its real or not. Heard makes it a tiny bit raspier too.
I have a local exhaust shop that works miracles for next to nothing and im putting an m3 rear bumper on so im going to get a custom quad exhaust so i may just have them do it but if not ill defiantly take pics
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      11-15-2012, 03:46 PM   #9
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Cool sounds good. Wish I had a hookup on welding.


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I have a local exhaust shop that works miracles for next to nothing and im putting an m3 rear bumper on so im going to get a custom quad exhaust so i may just have them do it but if not ill defiantly take pics
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      11-15-2012, 03:53 PM   #10
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if you end up breaking your cats all together, i still have mine sitting in a box in my garage... $50 shipped and you can have them. ^__^ (like i said, JUST IN CASE you mess up on your project)
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      11-15-2012, 04:11 PM   #11
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Are they just the secondaries? About to buy them and gut them then cut mine out and weld yours in. Are yours off a 330i? Would just need the secondary cats, no pipes or anything.


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Originally Posted by N0OS3 View Post
if you end up breaking your cats all together, i still have mine sitting in a box in my garage... $50 shipped and you can have them. ^__^ (like i said, JUST IN CASE you mess up on your project)
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      11-15-2012, 06:13 PM   #12
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Quote:
Originally Posted by N0OS3 View Post
if you end up breaking your cats all together, i still have mine sitting in a box in my garage... $50 shipped and you can have them. ^__^ (like i said, JUST IN CASE you mess up on your project)
Im fairly good with welding and stuff of this sort so i could probably manage myself but i think ill just let the shop do it considering they can put a whole cat back system in for around $200
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      11-15-2012, 06:14 PM   #13
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Do you know if in PA i can have blue angel eyes?
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      11-15-2012, 06:40 PM   #14
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Quote:
Originally Posted by AGood22 View Post
Im fairly good with welding and stuff of this sort so i could probably manage myself but i think ill just let the shop do it considering they can put a whole cat back system in for around $200
$400***
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      11-15-2012, 08:02 PM   #15
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You cant. no color other than white or amber on front of vehicle.



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Do you know if in PA i can have blue angel eyes?
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      11-15-2012, 09:20 PM   #16
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Quote:
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You cant. no color other than white or amber on front of vehicle.
Thats what i though ha just checkin
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