Exhaust system size

[glhs]

Looked a 250hp auto 2003 yesterday. I think I read a while back the 2003s would have a 4" exhaust. This truck looked like it had a 4" turbo outlet with 3. 5" pipe to the muffler and 4" coming out. Are the 305hp models different? Could someone verify?



Kurt

 

[Mark_Kendrick]

I'm pretty sure it's 4" all the way and mandrel. The turbo has an adapter that goes from 4. 5"+ down to 4" at about 45* then the exhaust attaches there. It looks like they are planning on E-brakes to fit there.



Later,

Mark

 

[JGarcia]

Took a quick look at a 3500, I think it's a 4 inch cat-back.

 

[yogibear]

3 1/2" to muffler, 4" muffler back.

 

[Mark_Kendrick]

Yogi is right. 3. 5 not 4" to the cat. 4" from there