INSTALLING A JB4 TO MY BMW M140i - instant horsepower gains! 

Thanks! I’ll try and make some more when we’re done with this lockdown!

Thanks!

Thanks bud! Appreciate it!

Thanks!

I got the JB4 for free, so figured it was the easiest and cheapest option.

I don’t think I’m qualified to answer, but Map 3 provides the most boost. You can get somebody to custom tune Map 6 I believe which is probably the best option.

Yeh, I’ll try and get another video done soon!

Standard all the way through, but with the M-Performance backbox

No estimations - I had it dyno’d a while back. 370.0bhp stock, 428.6bhp in Map 3. Stock engine aside from a pipercross drop in filter.

Alexiooo that stock figure 🤯 the B58 engine really is something else.

brownosing yeh, they all dyno higher than the quoted 340bhp

@@Alexiooo The only people who give you a graph with 370bhp for a stock M140i are bullshitting con artists, who have manipulated the figures, which is very easy to do. A video on RU-vid shows how to get over 500bhp with just a remap (bullshit figure, and he shows how con artist tuners con idiots into thinking their car is running mega power). Max BHP for a remapped M140i B58 engine is about 420bhp, it is mechanically impossible to get more REAL bhp on the stock turbo, injectors, exhaust and fuel pump. Mine was dyno'd at a BMW perfomance specialist on an honest dyno, it made 336REAL bhp stock, and 411bhp/576nm after a remap. Some stock cars might be running 340-345 bhp maximum REAL bhp, but not a chance of 370.

@@DjNikGnashers the dyno I used was one of the most trusted dynos near me, and it was my mate who did it. Add that to the fact that 2 other cars had dynos and their came up quoted power. I couldn’t care less about numbers, but that’s just what it is. If you know anything about the B58, you’ll know 370bhp isn’t uncommon.

Haha! Too slow this time!

Closed the boot when?

@@Alexiooo when the battery was disconnected.

Ahh! Yeh, well don’t do that! 😂

Can’t DM. What’s up?

Alexiooo - mouse has chewed through my tune box wiring loom, and right through the boost sensor. Trying to take the look off by following your install video basically in reverse but can’t seem to disconnect the clips. Used the screwdriver to push the white clip out but can’t seem to separate the two. Bloody nightmare

Give them a squeeze, they just need unclipping

Message me on insta @Alexiooo