Hello

Anyone done this?

What is the difference is these? ive got a good deal for a used thunderheader but its pre 06..

What is the difference? is it the bracket? 02 bungs? the exhaust itself?

Cheers

 

Pretty sure it's the same except for the 05 and earlier won't have O2 sensor bungs.

 

Ok my o2 sensor are bypassed anyway from my power commander

 

How the bracket mounts to the transmission is different. I had 99-05 Cobra Dragsters mounted to my 06, I hacked up the bracket that came with them and made them fit the trans.