My 07 has about 84k miles on it now and it either just needs to be driven hard a bit to blow the junk out or the cat is a bit clogged because I can make out the rotten egg smell every now and then but not all the time. If i replace the cat I do not want any codes thrown because I do not want to get tune just to take the light off. So with that being said any have any idea what cat I should get to replace? The car is staying stock but I dont care if its a high flow as long as it doesnt throw a code. If I have to get a stock cat to keep that from happening I will do that. Thanks, I tried searching but its a bit hard to pick through the pages and pages of search results LOL

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2007 Pontiac Grand Prix GT - 20% tint, painted calipers, red inlays, and more to come!

any universal cat will work as long as you keep the o2 sensors plugged in

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DIY intake-HV3-3" catless dp-180 tsat-DIY shift kit-murphy custom tune

Well, I saw somewhere where someone had used a Magnaflow cat and still got the code. That was a high-flow though and if they don't work "good enough" for the PCM it will set the code off.

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2007 Pontiac Grand Prix GT - 20% tint, painted calipers, red inlays, and more to come!

If it's high flow, it was eventually set off a code.

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sport red-05 COMP.G. MOD here MOD there.

I've had my Magnaflow high flow for over a year and it has not set a code....But it has broken apart on the inside and now rattles like nobody's business.

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2001 GT-Blue, Comp G Wheels, 2.5'' DP, Home Depot Intake, 180*T, GMPP Sways

which means you need a new one

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DIY intake-HV3-3" catless dp-180 tsat-DIY shift kit-murphy custom tune

Thanks for the input guys. I know I am being picky but thats just how I am. Like I said, I don't care if its high-flow but I just wanted to check on a few things before it came time.

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2007 Pontiac Grand Prix GT - 20% tint, painted calipers, red inlays, and more to come!

my slp cat threw a code until it was tuned out by my overkill pcm

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2004 GTP COMP G
K&N Intake, MPS, 3.5, Overkill PCM, SLP Powerflo, GTX Tips, SLP Headers, SLP Cat, 180 tstat, MSD Coils
Aeroforce Interceptor, Tints, 17" Elbrus Wheels

Or just rip that crap outta there like I did..yea i have a constant code and mil light, but the better sound and slightly improved performance off sets the trouble imho

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