I got a sweet deal on mine because of friendship mutual respect in the biz and I send them work. I asked about How much in general to do the same for most fwd on avg like mine. With SS tigged style muffler, Aluminized 2.5" thick stuff exhaust tubbing(not the cheap stuff) resonator, flex joint, and flanges and gaskets about $450.00-500.00. 3" slightly more if wanted.