Ask Honest John

Most recently answered remapping questions
I bought a Volkswagen Scirocco from a private seller in October 2016. The car was fully serviced and appeared to be in good condition. The other day Volkswagen did the emissions update and it completely...
Based on your advice and all you've written, I bought a Kia C'eed estate auto 1.6 diesel (no DPF) with 37,000 miles on the clock from a Kia dealer this January for £5500. I drive approx 30,000 miles a...
My diesel Audi 2.0-litre has been remapped. Will the emissions fix undo my remap, thus meaning I will have to pay to get it done again?
I've been doing some research on Audi remaps. Is this going to degrade the engine in any way and why do you think superchips are probably the best option?
I'm looking at getting a Superchips Bluefin remap for my new 2016 Ford Focus 1.5 EcoBoost, 147PS with 2600 miles on the clock. The remap boasts a 47PS and 63Nm torque increase, although I'm well aware...
A friend's 2007 Audi A6 2.0 TDI had a DPF removed and deleted, as well as an EGR shut. It also had a remap done. From test drive, the vehicle begun emitting excesses smoke when the engine was heated and...
Should I remap the engine of my recently acquired Audi A3 Sportback 1.4 petrol with 32,000 miles on the clock? A local garage is offering Superchips, which it says will give better performance. But what...
I am thinking of re-mapping my Jaguar XF 3.0D diesel. I've been told that the torque will increase from 369 to 449 lb ft, with an associated increase in bhp from 236 to 327. They also claim a small improvement...
Looking for an economical remap to increase mpg, not increase power as I pay enough insurance already. Does anyone know a company that would do that?
I'm thinking of remapping my 2006 Renault Laguna 2.0 Dci (150). Is it safe, or would it open a can of worms?