2016 340i
50k miles
48k miles with BMS intake
44k miles with JB4
42k miles with ER catless downpipe
Multiple e85 mixes around e15-e30 due to 91 octane.
Multiple octane boosters used due to 91 octane
Ran Map 1 Beta, followed by initial Map 2 release.
Used map 3 and 5 for the last 1.5 years with lots of octane mixes.
Didn’t run perfect always, but when it did, it was perfect.
No hardware damages. It’s been two months since I returned it and I still miss it, but looking at g20’s helps me get over it.
One time got a low coolant warning at 49k miles.
Had the jb4 during it’s development days. It was nice surprising people in 2016 when most weren’t familiar with the 340i.
Had a lot of people ask if it’s a V8, assuming they were used to the 540i/740i