2008 Ford Expedition sleeper Intake and Exhaust Upgrades

Installed Spectre cold air intake kit and a custom exhaust system which completely removes the factory 30 pound restrictive boat anchor of a muffler. If I wanted a V8 expedition to sound like a quiet electrical car, I would have bought a Tesla.... A Jones performance 2 chamber muffler was installed with a 3 inch inlet / outlet which extended to the downpipe flange. The factory exhaust from the downpipe was 3 inches which was dropped to 2 1/4 after the downpipe flange leading to 2 1/4 at the factory muffler inlet/outlet then transitioned back to 3 inches to the rest of the exhaust system. The factory exhaust bottle neck is after the downpipe, to / from / and the factory restrictive heavy boat anchor muffler and then the exhaust goes back to 3 inch. I removed factory muffler, cut off all piping that was 2 1/4 and replaced it with 3 inch exhaust piping to lead to the new 3 inch in/out 2 chamber muffler which flows great. Finished it off with a 3 inch in and 5 inch out exhaust tip which gives that great sounding rumble a nice tip. All in all, the intake and exhaust are finally balanced so the engine gets fresh cold air in, and breathes out with free no restrictions (except catalytic converter) to allow the hot exhaust gasses to exit freely with a small fraction of backpressure that it used to have with that HUGE boat anchor factory muffler which belongs on some giant t farm tractor, not a passenger vehicle. Altogether I did real good budget wise. Spent $30 on the Jones 3in/3out 2 chamber muffler at Summit Racing. Exhaust tip 3 in 5 out on ebay for $12, Spectre air intake kit at Summit on the 50% off shelf for $100, and $90 for exhaust tube and welding labor at my local exhaust shop. Great budget mods.