99blkgs Posted September 19, 2007 Share Posted September 19, 2007 I HAVE A 99 GS AND I WANT TO REMOVE THE CATALYC CONVERTERS, IS THERE A WAY I CAN JUST PUT RESONATORS IN THEYRE PLACE AND WILL THIS REALLY MAKE THE SOUND LOUDER OR ANNOYING COMPARED TO STOCK THANX IN ADVANCE Quote Link to comment Share on other sites More sharing options...
CarbonGS Posted September 19, 2007 Share Posted September 19, 2007 do it right. if you plan on doing this you'll save your money in the long end by getting headers. a friend of mine had his stock is300 exhaust manifold custom cut where they put in striaght pipe where the cats were. he then installed o2 simulators to assure there would not be a CEL Quote Link to comment Share on other sites More sharing options...
TRD911 Posted September 20, 2007 Share Posted September 20, 2007 Where are all the environmental folks bashing you guys. I aggree with the headers. I did that on my 4.7L Tundra.. B do it right. if you plan on doing this you'll save your money in the long end by getting headers. a friend of mine had his stock is300 exhaust manifold custom cut where they put in striaght pipe where the cats were. he then installed o2 simulators to assure there would not be a CEL Quote Link to comment Share on other sites More sharing options...
djspawn00 Posted September 25, 2007 Share Posted September 25, 2007 Where are all the environmental folks bashing you guys. I aggree with the headers. I did that on my 4.7L Tundra.. B do it right. if you plan on doing this you'll save your money in the long end by getting headers. a friend of mine had his stock is300 exhaust manifold custom cut where they put in striaght pipe where the cats were. he then installed o2 simulators to assure there would not be a CEL The environmental guys are busy throwing rocks at H2's. not that I mind or anything. :whistles: Quote Link to comment Share on other sites More sharing options...
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