[CaliKars]

Hey fam,

I have a 2016 340i MSPORT package with the following:

Dinan CAI, Evo Raceworks Downpipe, Dinan Midpipe, Stage 2 BM3 tune.

I would like to know what other upgrades I can do but keep the turbos stock. I was looking at upgrading the fuel pump to the 2020 supra one but im a little unfamiliar with this and would like to know what other options people recommend without putting significant wear and tear on the motor.

Appreciate al your help in advance.

[DJSF3014]

Originally Posted by SuperLomi

Intercooler is the most obvious, and charge pipe if it’s still stock (for durability reasons). You’d basically be FBO at the point.

You could then bump up the the BM3 stage 2+ map if you wanted.

With what you have listed you don’t need a fuel pump.

Idk about you but everyone doesn't need to upgrade the intercooler on the b58 as the stock is plenty till 600-700 hp I believe. Op you can do the b58tu pump for more fueling but then go custom map or even run e30 on stock turbo for some great results as for anything else only cosmetics left till you want more power.

[SuperLomi]

Oh haha sorry. I was in the zone and didn’t realize this wasn’t the N55 engine forum. Yeah disregard I don’t know anything about the b58.

[Wires]

Unless you are planning on running ethanol tunes, there is really no need to upgrade the stock HPFP. It flows enough for gasoline, just runs out of steam when pushing high Ethanol tunes.

Only thing you could really do is an axle back exhaust, but that's 100% for sound.

[CaliKars]

Im good on the axle back, the car sounds great.

If there is nothing more besides an ethanol tune, which I am hesitant due to the potential for blowing motors/turbos/etc, what can I do to increase HP? Larger Turbo, new fuel pump with ethanol tune?