Big R is right, the lift won't work with the duals. The lifts that mount on the bottom are prone to create cv binding. I ran an EMP lift on my first LE car that mounted on the lower -arm and it worked fine with no binding, but that was a LE, I don't know how they would do on an S. With the additional wheel travel of a "s", the joints may bind.
So I've been talk to a couple of guys about the new Tim Barker Dual Exhaust set up and we don't think it will work, because like what you guys said it pushes the the shocks up and out about 3 inches. I don't know if FJK just got different shaped mufflers and that's why his works, But I thought the guys I talked to said their muffler is round not oval shaped.And the Looney tunes I think will work..maybe? Give us a call if you still got any questions we can figure it out. Thanks!