328 and 320 Performance Upgrades

[jnic290]

I've been looking into getting an F30, and would obviously love a 335, but they are slightly outside my price range unless mileage is at 70k+. What sort of reasonable performance upgrades are out there for the 4 cylinder turbo engines that can give then a pick-me-up. I saw they make the JB4, but that's about 40hp if I remember correctly. Anyone have any experience?

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[Pelican Parts]

Hello - If you're looking at the 328 and 320 models, the JB4 or similar tune will likely be the most HP you'll see. Intake and exhaust will show minimum gains.

[mike@XPH]

JB4 is the most popular tune for BMW

If you are looking for a mild increase while keeping your car stock i recommend a JB stage 1
For more power you can do Jb4 + other mods

www.x-ph.com