I have 95LX and I want to a cherry bomb on my car and I was wondering what size the pipe was that goes into the muffler so that I can by the proper adapter for it. If someone can help me out, it would be great.

measure the circumference (distance around) of it, then take a calculator and divide that number by pi (3.141592654...)

Will the tail pipe be the same size as the exhaust pipe?

could be, but i wouldnt trust it...just go under and wrap a cloth tape (someone who sews has one) around the exhaust pipe and see...