My second visit to Mad Hatter.  The first visit was on referral, the second was because they did such great work on the first visit.  This time, they did a manifold back exhaust for me, to include all new pipe, new o2 sensor bung, new catalytic converter and glass pack.   Part of my request was that they reroute the exhaust to give me room to put an anti-wrap bar on the rear axle of my weekend toy - a '93 Jeep Wrangler - and they accomplished that.   \n\nFurther, the previous downpipe from my exhaust manifold routinely made contact with my front driveshaft under front axle articulation, and they were able to move the new downpipe slightly to the side to eliminate that problem.  \n\nThere were some holes in the pipe near that driveshaft and near the old cat, causing my Jeep to sound like a UPS truck.  So, the bonus is that by sealing up the new pipe, they eliminated exhaust leaks, and I now have a little more power without the UPS truck engine sound.  \n\nBest of all, they did all this while I walked across the street for a bite to eat.   \n\nThanks guys!   Highly recommend!