Here is two graphs before 3'' and after with some tuning

Do you guys think I could have made more hp?

 

looks like good #'s.

i put out 318 whp on 15 lbs on a td05-18g greddy kit.

 

Yeah a little, with 14.5 psi, but I would be happy with what you've got. You gained a lot of low end torque with the 3" and tuning which probably makes it much more of a joy driving around every day. Nice numbers.

 

nice torque curve

 

Thanks god to know