As the title says, I'm thinking of fitting a tuning box to my 280, but I'm not sure which to get. A JB4 looks like the most popular choice, but installation seems more complicated that DTUK?

I've used DTUK on diesels in the past and they've been great. 

Just wondering if anyone has tried both on a 280?

Have a look here for some info.

It's more complicated because it's also a more sophisticated option with better control over the ECU than the rest of the tuning boxes, resulting in a more OEM power delivery with better boost and AFR curves, which is why it's considered the top of tuning boxes, comparable even to a full remap. It's also got more features than just providing extra bhp, (remote logging, boost by gear, meth controller, custom map setup), a huge client database all over the world that has allowed them to idnetify engine/gearbox issues before even some tuners themselves, and a great support from BMS that's really knowledgeable on these engines.

I know people will say "i had my DTUK/Racechip/whatever box on for years and it was great" which in most cases translates to "i installed it - car felt faster - it hasn't blown up" but i wonder how many are really aware of how these ECUs work on making power, let alone having logged their cars to verify data looks safe and within factory tolerances. And yes even a Jb4 doesn't have the full access to operating parameters a remap has but it's the closest thing to it in the form of a removable box.
 

Edited 13 July, 20205 yr by newbie69

280 Sportline sedan here: I've had a JB1 for 14 months now since the car was brand new (I fitted it at home the day after I took delivery). It has worked faultlessly and has delivered a healthy jump in power and acceleration. I did research on DTUK prior and saw some Golf R's that were running very rough with their DTUK box on YouTube.

Burger Motorsports seems to have a better tune and better after-market support compared to DTUK. I haven't been disappointed and for the money I think it is hard to beat. And the JB4 offers greater tune-ability too than the JB1 I have.

Jb4 hands down! Just set it on map 1 or 2 and leave it at that if you don't fancy playing around with it.