Ok, i have a 91 z with dual cats. My question is are the cats bolted to the y pipe and on the inlet pipe? or are they welded or riged in some other way? i really dont wanna crawl under my car so i just thought id hit u guys up u no how it is. i no they r prolly bolted because welding wouldnt really make any sence, and i just answered my own question. ok
thanks anyway

 

you can easily see under the car without getting under it, just bend down, and you will see that the dual cat cars cat's are welded on and the single cat cars are bolted on, i dont know why this is, but thats how ive always seen them.