I need a stock catalytic converter for a 2005 Grand Prix GT. Just helped my brother buy this car for his first car and a converter wasn't in the repair budget. Thanks.
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06-15-2014
I need a stock catalytic converter for a 2005 Grand Prix GT. Just helped my brother buy this car for his first car and a converter wasn't in the repair budget. Thanks.
06-15-2014
If you don't have emissions just chop it out
Originally Posted by theaceofspades
06-15-2014
Really?
Perhaps thinking more than 2 seconds would maybe get some more thought bubbles flowing through your noodle. Like the fact that his gas mileage will go down, his SES will stay on, he'd need a tune and don't gimme no bull**** comment back about that one(because it's not an option for 95% of people). Posts like this make me angry.
06-15-2014
We do have to have emissions, unfortunately. And luckily it isn't clogged, just the check engine light is on so he can at least drive it for now.
06-15-2014
P0420?
06-16-2014
Indeed.
I'm thinking if I can't find a used one quickly, maybe the ZZP down pipe would be the way to go. Looks like a good bit cheaper than a GM or aftermarket direct replacement and would get him a little more sound.
Last edited by 91RS; 06-16-2014 at 04:34 AM.
06-16-2014
Be careful if buying an aftermarket or generic weld in cat. The P0420 code will be back after a few months.
06-16-2014
Cheapest route would probably be a aftermarket downpipe from ZZP w/ a cat and then adding a spark plug fouler. You still may end up a/ the p0420 so a tuning it out may be needed so keep that in mind
06-16-2014
Yeah, I'm a GM tech so I know the weld-ins are junk and a lot of the aftermarket direct replacements are, too. The GM cat is $540 my price and while I'm normally a proponent of GM parts, I just can't justify that on a car we paid $2300 for. I was going to go with the Magnaflow direct replacement since I know its quality but I think the ZZP is going to be the choice if no one offers me a good used stock one by tonight. The price is right and I can send them the bad stock one for a $50 credit.
06-16-2014
Any thoughts in taking the cat off and cleaning it with a solvent?
06-16-2014
Magnaflow does make a quality cat that isnt a high flow, but the cost is likely around $200 bucks. I forget the part numbers but it is out there.
06-16-2014
Dtrick22 has one sitting around. I'll have him jump in
06-16-2014
Has anyone tried the de-fouler trick lately with a universal cat and had good luck?
06-16-2014
Some people have foulers work some don't.
Sent from the Milky Way
06-16-2014
I have a stock cat from my impala, but im in canada.
:4'' HAI\L67 HVTB\HV3\ER Rockers\WP underdrive pulley\Headers\cat delete\91 octane overkill incar tune.3.69 gears, Trans go shift kit.
06-16-2014
I've got a stock down pipe with cat off of my 06' sitting In the garage right now. No issues with it, I just put headers on. Shoot me an offer
06-16-2014
I've never heard of that before.
06-16-2014
The one I was going to go with at first was their direct replacement, not a weld-in universal. That one costs around $350.
06-16-2014
The one Dtrich is talking about is OEM
06-16-2014
Sending PM.
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