Wondertwin1

Aka. Lost low end torque.

papa tiger

Add the stainless Y pipe and electric dumps with downturns, then you can open em up when you want to be nasty in the wild and close M up sum when you get to town or see a trouper with his ear out thewindow listening to you pull overthe crest of a hill. LOL

ibd2328

iTrader: (2)

I added headers and high flow cats then took the muffler off..

I like the sound, and mpg are about the same.


http://s1147.photobucket.com/albums/...rent=027-7.mp4

03FX4604

you dont lose low end torque, read ottos write about exhaust and youll see why

MFK

My 5.4 has a reverse y from the cats to a straight pipe then another y to the duals in the rear. It can be kind of loud, but I don't feel it is too obnoxious unless I start romping on it, although it does tend to drone some while pulling a trailer at highway speeds. Otherwise I'm quite pleased with the sound.

Jacob.P93

I already explained that to him. but he said "aka lose low end torque" but when you lose something you don't have it. with the low end being moved up you still have it. lol

greenheadkiller98

As long as you keep the cats, cops wont pull you over for straights with these trucks, they really arent any louder than a performance muffler

MFK

Yep my 79 with true duals is far louder than my straight-piped 5.4 with all the cats still in, I have had 0 problems with the cops over it.

pterrell

i have true duals and cut my rear cats and muffler off. my 0-60 is still the same as it was with the cats, but it does take a little more to get going at a stop sign. then again it takes me a mile to get up to speed (my driving habits) so i dont think its a negative. i love the sound, and i am really considering cutting the other two off.

Jacob.P93

So that shows you lose nothing.