Well they won't bolt up. You would have to have a muffler shop install them. I can't remember the clearance on the left side (driver) but if you could fit your OEM muffler on that side I'm sure the others would too. You going with a GT or V6 take offs?
A muffler shop can cut the back tubes off of the GT and weld yours on. I bought a set of GT500's, and had this done so that they would bolt up to the V6 exhaust tubing, as it is slightly smaller that the 5.0's.