I have a 96 GT and on mustangtuning it says for SLP they have a shorty catted X-pipe and a regular catted X-pipe, if these are my choice for catted SLP midpipes...........whats the difference between it being a shorty or not?

(Sorry, if its a stupid question)

 

Shorty catted pipes are for LT headers. If you dont have LT headers, get the normal pipe