Originally Posted by chrisko
Wanted to add an update.
65/35 hwy/city I got about 22.4-23 (just added today). GRANTED I just got my JB4 installed + catless DP + axle back installed so I've been a bit boost happy as well (trying my best to test out the JB4).
When I went on a 34 mile highway commute right after fueling, I averaged 28.2 mpg and it was still rising when I got there. Probably could have gotten it to 30 with some babying.
Good info man. Ill be doing almost the same mods here as soon as my break ins over. Already have jb4 and just ordered down pipes. Tell me how much better is the acceleration difference?