Even eaiser. I'm 17 and did this on my 98 firebird quickly with no experience. Take off the old exhaust by sawing it in half by the rear axle then unbolt it all off. Then put the new one in place and tighten the clamps that come with it. Problem solved
shouldn't take to long and the sound improvement is amazing.
Btw, its called a Magnaflow catback, not catback Magnaflow
Hope this helped man, just ask me anything else if u need help.