As far as emissions content, some say it will pass and some say it won't. Visually it won't pass if the inspectors know what should be there. Will the first 2 cats be enough? I think so as long as the engine is running as it should be. I'll find out in about 2 months, and I'm here in CA so if I pass, this issue will be set to rest.
Note: Vehicle emission tests are currently required in Bucks county.
Tests: Dynamometer, Visual Check and Gas Cap Check
Note: Brand-new vehicles and vehicles driven under 5000 miles annually may qualify for an exemption sticker. Ask your service provider for more details.
Disclaimer: Gasoline-powered motor vehicles with a model year of 1975 and newer with a GVWR of 9,000 pounds or less and registered in an I/M county or region are subject to an emission inspection. Actual test requirements based on make and model, drive system, vehicle weight, etc. The regulations in Title 67 Pa. Code, Chapter 177 shall determine the test type for any individual vehicle.
If it was ME, and it passed the dyno, and had 2 cats, I'd probly let it go. We have an old bronco that comes into work w/ headers, true duals, and has a cat on each, and the state told us that "As long as an attempt was made to put the cats on as close to factory, let it go" So I'd pretty much take that as, well as long as it has them on there, its good. I guess technically though, they could fail you, but then a call to the state might clear things up.
From what I've read, in some states, if the car passes the sniffer and isn't throwing any codes, it's good. However in others, like California, they have a visual inspection, and if the exhaust is anything other than stock, you fail. So it's best to check the local laws and see what's legal in your area before getting any work done.
I've heard some real horror stories in California though. Guys in stock STi's getting pulled over for "illegal modifications" such as large exhaust tips and blue radiator hoses, both of which come stock on the car. The way I get it is, that in California, if you've done any visible modifcations to the car, you're busted.
On a different note, Geico published an article for parents about how to tell if their kids are street racing a few years ago. It stated that, if any aftermarket equipment is found on a Geico-insured car when it's pulled over, Geico declares it a "street racer", and voids their coverage.
Here in CA, if you're not doing anything that would get you pulled over, you probably aren't going to have trouble. I've had my 3rd cat gone for over a year now with my dual exhaust (came single from factory), and I've never had any problems. Then again, I don't speed or change lanes radically or do anything to grab unwanted attention. If the car is obnoxiously loud or lit up like it ain't supposed to be, you'll be fine unless the cops are really lookin' for something to do or you are getting busted for something else. Then they'll probably add on to the tab because they can and you're pulled over anyway.
A forum community dedicated to Ford Thunderbird, Mercury Cougar and Lincoln Mark owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, maintenance, and more!