Did they even LOOK under your car? Low catalyst efficiency isn't possible on your car, as greyhare said above.

Find a new exhaust shop?

OK, No they did not look under the car.
They had the parts page from the last muffler shop that wanted $200 more to do the same job.

This was something I was wondering because I said there was no Air pollution tubes or sensors with the cat.

They said that the Magnaflow engineer said the light would come on and if there was a problem they weren't responsible.

This is good news then because this High spun cat is the closest thing you can get to just a plain piece of pipe. LOL

I am going to go ahead and order this cat then, and keep the factory resonator, and go with the F-body muffler by magnaflow. They said they would probably need to replace the tail pipes. Tips are too much now and will do them in the fall.

I have a set of custom flame throwers.(bought for a 57 Chevy) I think they would melt the rear bumper fascia.LOL Be cool though on a night run to just blast flames out the back!

Thanks guys. Once again you have set my mind at ease.

Mr.Firemouth has a flame fetish.

If that setup kills the ignition so raw fuel goes through the system, like all the kits I have seen, it is a good way to destroy the new cat. Some raw fuel will burn off in the cat causing it to overheat.

Sorry to be a spoilsport.

theres an easy fix for that dont get the cat. run cat-less it will hurt performance but the flame throwers would be twice as cool. My dads 60 falcon has flamethrowers on a pretty built engine so the flames are like 6ft long

That'* fairly illegal for post-74 cars. Besides, I'd rather have a rear bumper cover than flames. It helps attract the ladies when your car isn't melted.

WOW!
I installed the Magnaflow High Spun Cat today!
What a difference! I kept the rest of the exhaust stock but Holy Cow!
the car is a whole lot faster and stronger than it was before!
I know for a fact that my 0-60mph is way better!
I am loving this!