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i have a 93' 150 4x4 with a flowmaster 40 single in, dual out muffler with it exiting in frot of the right tire at a 45 degree angle. it wounds nice but i want a deep tone at mid range and a little more hp. i was told a high flow cat would do the trick. would it pass emitions with one high flow cat? let me kno, steve
As long as you're not in CA you can swap out both cats for a DI/SO cat that'll go where the first cat is. CATCO makes one that'll fit there. Should pass emissions just fine.