Alright here it is I'm starting to get quite pissed, I changed the plugs and wires about a month ago. NGK plugs and MSD wires. Today I started up the car and had a few problems today while driving. First was today as I was driving my car would lag while accelerating on and off liek it was bogging down and I have no clue what is causing that now. Second problem is the exhaust it sounds like the engine is misfireing, because the exhaust tone cuts out sometimes, wondering what coudl be making that happen. On a side note I do believe I have an exhaust leak because I can smell the exhaust and I dont think it because there is no cat anymore. Would an exhaust leak cause any of this. Third problem is lately my car seems to vibrate good enough to where I can feel it in the steering wheel and in the floor. Also it feels like something is loose or something under the car cuz along with the vibration is feels like something might be rubbing or grinding right under my feet or somewhere under there. Any ideas would be greatly appreciated.