3 cats i would imagine is too much restriction , 2nd ens only came with 1 cat. 180 your not going to really get any numbers. it just help the truck in other ways

 

it's just a t-stat, not gonna change much on it's own but in conjuction with other mods it helps. Just another piece to the puzzle. I should clear something up, I'm a dak owner but it's the same powertrain as the rams so I'm here. 5.9, backed with 46RE, 12 bolt posi loaded with 3.92. But on a side note, I am getting a ram, just haven't decided on which.

 

did a little racing today againt a hemi he beat me from dead stop.. 30 roll i got him.. the chevys only pulled on me at 90.. a few more mods and il be where i want and thanks for all the imputs

 

5.9!! did you get superchips inn?

 

not to steel your thread but, can i run true duals? since we only have 2 O2 Sensors on one Cat. wouldnt it screw something up?

 

if there is an 02 sensor after cat, you'll have to get a sim box I think it's called. If no 02 sensor, all is good. Check local emissions if you have any.

 

Sim Box???

 

just dont make it too big , 2.5 duels would be prob perfect 3 is too big

 

Im thinking my programmer isnt helping at all i put it back to stock and raced a buddys hemi beat him from a 30 roll and on the tune i cant really feel that big of a difference..

 

really? because im loving my superchip! pulls harder @ 2200+ rpms. I wish i had more options (trans tuning) though. thats the only thing that i dont like about superchips, its very limited with the 5.9.