the exhaust setup, and the tb setup on your truck? When I changed out the exhaust system on my truck, I took note that I had 2 cats, 1 muffler and 1 rear resonator. I had heard from some that they had an extra res on theirs? Just curious how different each yr is. As for the TB I found out theres a difference among yrs dealing with the number of sensors. How many does yours have? This isnt a big topic, just curious how different some of the yrs are among the third gens and to inform ppl who dont know.

 

On my 08 TRX 4.7 there are 2 cats (one off either pipe coming from the manifold), a front resonator, a HUGE can, then another resonator over the rear axle. I'm thinking of cutting the muffler off and seeing how it sounds with just the 2 resonators.

On a side note, does anyone know what our exhaust systems are made of...aluminized steel, stainless, or what?

Thanks

 

my 05 4.7 had two cats before the y-pipe then it went into one resonator followed by the huge muffler then another resonator before the tailpipe. as for the tb, only 2 sensors.

 

2005, not sure on the TB but as for the exhaust, 2 cats (one on each bank) -> y pipe -> resonator -> muffler big enough to keep a dump truck quiet -> resonator -> exit.

 

06 same deal, 2 cats, 2 resonators and BIG A$$ muffler.. Kid Rock could have made another song about FAT BOTTOM..

 

I wonder why the 07s were different, or at least mine was...with just a single res

 

Bolt, I am the same as you; My '07 has 2 cats, the big a$$ muffler and then 1 res over the axle.

The '06 I had prior to this had 2 cats, 2 res and one muffler. I am not sure why the '07's differ.

 

my 06 had one big *** muffler thats it, its sitting in my garage still-

 

these exhaust systems are stainless. i have a cat off both manifolds, used to have front and rear resonators, and that trash can muffler as well. i just have iat and tps sensor on my t/b.