Tuning needed for new exhaust?

Originally Posted by somms

I noticed things like fixed throttle lag, and a slight improvement in mpg. The racerom features; launch control, FF shifting, and Valet mode are almost worth it alone. I have the dyno sheets to prove a 22 whp gain, however the butt dyno can't tell the difference. I suspect where you get it tuned probably makes a difference in how well your mods get maximized.