Pre owned 08 F 350 SD
 

I just traded in my 04 F-250 V10 for a Loaded F-350 Lariat. Love the truck. Comfort and power all wrapped up with a 6.4. 40G's all hwy. Anyway the prior owner had a Banks intake and exhaust installed, No Chip or Computer. Can anyone give me an estemate of how much HP and TQ gained by this upgrade.