I was absolutely devastated when I’d read in the paper these poor guys’ shop had tragically burnt down! Thank God, they’ve found a new place though and are servicing our cars’ exhaust needs as beautifully just as they always have throughout their long and storied history whilst here providing great service in Jacksonville. These guys are the best! One of my previous cars had become REALLY loud. I took it to the good folks at Rainbow and they discovered it was a a rusted through catalytic converter(they showed the damage to me while it was up on the lift). I gave them the go-ahead and all they did was weld off the old one, weld on a replacement and they then just charged me for the new converter and a small labor fee for the work done in replacing the rusted-out one. All happened lickety-split! They are a completely honest, no-nonsense, locally owned and operated independent business that did the job expertly and very quickly too. The brand new generic(and generically priced, too!) catalytic converter they installed lasted me the rest of the life of my car while I had it. Even when I sold it at 240,000 miles, the derned thing was still going strong! So much better and VERY unlike the prior experience I had at a muffler place in Orange Park which just happens to be part of a national chain: More on that later, though. :-( I will from now on be taking both my cars’ exhaust needs to the great people at Rainbow. You should too if you live within driving distance of them.