I've got Roktech lift off of ebay installed with my Muzzys. I bought the lift before I had the exhaust. I did have to modify the lift to install the exhaust. Wasn't a big deal just marked and cut out for the pipes then welded some flat bar to reinforce where I made the cuts. If your buying a lift getting one that already works the the exhaust isn't a bad idea. I only paid 135 for my lift.. Took about 2 dollars worth of flat bar to mod it..
Here is a picture of where the cans hit.