Mods are in the sig, this truck is the strongest 6.7 I've had (4th since 2011), I was looking for improved mpg with a ******, a bump in power sure why not, but it runs bad. The turbo lag is awful.
https://youtu.be/kxz61-uzsqs
I've tried a few different tuners, a BD 40928, running a SCT live...