Well not to make a story out of it but my truck finally wouldnt rev at all.......solution.....chop the plugged cat off= REALLY LOUD Truck.(worked though) Being my only automobile i plan on fixing it tommorow but sense i have to go through the hassle i was gonna put a highflow cat in. Problem even after searching i am finding brands ive never heard of...Any clues as to who makes a good high flow cat for the 5.9L 4x4 99......quadcab shortbed. Thanx

 

got my magnaflow highflow direct fit cat from summit.... id suggest goin with that one... fits great!!! even on my 01 (the cat was for a 99 yr) magnaflow is goodbrand..stick with that...dont get the one off ebay...that guys screwed me over megabigtime