Well... I'm late on this one since you have already ordered; however our 98 Saleen has the Saleen style AM 18x10 rears (unknown offset) with no issues with the exhaust clearance. Not sure if the Borla systems were the same for all years. I am eventually going to ditch them for a set of Saleen Lemans with the proper front and rear offsets. Then have the rears widened by someone like Weldcraft to fit a 315. Here is the best photo I have for now showing the wheel to exhaust clearance. You can see there is plenty of room with the 295's.
-Daniel
