[AngelFarelli]

In order depending on how much you have to invest.

Intake, catless downpipe, charge pipe, mhd tune, stage2 turbo , inlet , diverter Valve , methanol injection kit , high octane gas 93 or 94 , high pressure fuel pump, big brake kit for front and back, nitrous , professional dyno tune, suspension, wheels, race tires. From that point on it's a matter of getting enough boost without turbo lag or cracking your cylinder block or blow by pressure. High performance academy on YouTube has some great content

[iqraceworks]

Originally Posted by jboyorak

Full exhaust, intake, intercooler, and charge piping.

This...and catless downpipes.

[N54_ABQ]

Its all a matter of opinion.

Just as a "rebuilt" engine means different things to different people.

[avgn5x]

I'd say everything before upgrading turbos. Imo once you get to more advanced big mods you are going balls deep.

[RoughKnight]

account created feb 2019, one post, he wasted his first post since 10 months ago for the thread necro..........