I'm a lil biased since I've worked with Keith....but.. I do own a Buick and don't like putting crap parts on it....
Keith's pipe has a water-jet cut flange so there is no warpage during the machining process. The wastegate puck is essentially the largest you can run and is made out of inconnel, the shaft doesn't bind, his latest revision of the pipe is more straight and has less bends which promotes slightly better flow characteristics then previous designs, the quality in the welds and workmanship are text-book perfect...whereas Terry's and ATR's welds look like booger jobs on
every pipe I've seen from them, whether it was for a Buick, a Typhoon, among others...
and... Keith's pipe is very well priced.
He is right now a two-man fabrication shop, but the quality of what he makes is second to none in this market for what other products I've seen.
At the moment, one of his customer's cars is almost done, a proposed 1000rwhp twin-turbo Impala SS, using the first two of Innovatives new Mini-Gates.. they're cute even
... should be booty-full
but hey, like I said, I'm a bit biased