TRL12087

im not sure... but i do know flowmaster claims they produce more HP gains than the American Thunder ones

dc_mann8

yeah they are supposed to have more power i cant find out if they are as loud..

Obsol3te

Still say to get the "feel" for Magnapacks you MUST hear them in person.
That vid doesnt do it much justice...
If you heard them, you'd make the switch.

nemethjames1

when are they going to offer a catback for the foxbodys?

Obsol3te

Doubt they ever will, The newest foxes are like 11 years old...

roundman

Personally and to upset OB I would go with 1-5/8" equal length shorties and you can go back from them with a 2-1/2" off road H-pipe and 2-1/2" cat back with whatever mufflers you choose to go with. this way you keep the O2 sensors in the stock location so there's no problem with the ECU controlling the engine and the pipes are not too large to kill low end torque either.

Obsol3te

Yeah, but he doesn't have to pass emissions...
So why go with a less HP producing header?
Just for the ease of the install?[:'(]

I know you're wise and all knowing but Longtubes are Dyno Proven to make more power and torque.
And it sounds better too

Dbeck002

if you like turning wrenchs, get the long tubes!!! i got them and never regret it... took me a while to figure out how to install them but now that i know i could do it in half a day.

perfect exhaust setup

Long tubes - catless H pipe - super turbo straight through muffler (any company) - dumps

Obsol3te

Perfect Full would yield the most power
So it'd be Longtubes then Offroad X then a straight thru muffler

bobby

Such as Magnpacks