Anyone know  what the largest tailpipe you can get through the bumper? Stock is 1 1/2". I am thinking 2" would be max. Also looking for performance mufflers. Currently running stock mufflers and tailpipes without resonators and like the sound. Problem is my engine with Mummert heads and Isky cam and Blue Thunder intake is around 400 horsepower. Looking to get over 400 with good headers. Running antique Hedman headers. Just ordered FPP headers. 4 month lead time. Need better system behind them. Looking at 2 1/2 in and 2 1/2 out mufflers. Trying to figure out what to do from the muffler back. Would like to keep exhaust through the bumper if possible. Thinking 2" would be max. Will this be a problem. Could go to 2 1/2" and dump it behind the mufflers or in front of the bumper. Not thrilled with either options. Looking for muffler suggestions and a tailpipe solution. Will install an H pipe and cutouts for the eventual drag strip runs. I want it to sound good but not so loud as to be obnoxious and annoying.