i just put on my magnaflow catback on my lt1 and love it. but now my cat is rattling[:@]
what will just flat out gutting it do to the sound/ performance?
and what to do about check engien light comming on....

 

it wont give u hardly any performance, maybe a couple horsepower at the best and it will make ur car a little bit louder.

as for the SES light, get it scanned and see what the problem is.

 

nnnnnnnnooooooooooo by gutting the cat wont it turn on the ses light?

 

It depends on what year your car is, if it's pre 1996 you won't have to worry about an SES light, but you may still have to worry about emissions tests depending on how they are conducted in your area.

 

Gutting the cat will result in a surplus of power and make the car dangerous. Hell, we should all know that by now. LOL

 

Depending on the State your in gutting the car will result in a shat pile of fines.

Don't ask, don't tell.

Most don't realize cutting the cat won't result in a large increase in power. There is a reason the cat is larger then the system, to allow flow while processing the exhaust. By some performance aftermarket 50 state legal and your good to go. The older, pellet style cats of the 70s and 80's did hamper the power pretty bad but those made now are very good at keeping the power levels up.

Emmision testing, if in your area, automatice failure if it's not on or gutted.

95 and later, yes, it will throw a SES light.

If your cat is rattling the "honey comb" broke loose inside. Do what you think is best to fix that problem.

 

i think im going with the magnaflow direct fit for my replacement. since i got the catback already........................

 

Good Cats and they don't kill your wallet. I've actaully put them on as stock replacement because of the cost difference to a factory and the fitment quality to most aftermarket.

 

I have magnaflow cats in my Kooks system, although if you're willing to spend a bit more Random Technology cats flow the best, you loose a whopping 1 hp with a set of Random Tech cats...

 

Magnaflow Carsound Cats are $50 shipped to your door on ebay brand new

I'd get one of those