Anyone heard of this lot?

Spider® Diesel Chip Tuning and Performance from Diesel Tuner Systems

A friend is thinking of fitting one to his golf, and asked my opinion, but I've not heard of them.

As a fully qualified EFI technician and ecu mapper with years of experience tuning everything from road to race cars I can highly advise AGAINST using any type of plug in 'tuning box' type of device.

I have tried and tested many, never been impressed by any of them especially when you read live parameters while running a car on the dyno that has a box fitted.

black smog anyone?

As a fully qualified EFI technician and ecu mapper with years of experience tuning everything from road to race cars I can highly advise AGAINST using any type of plug in 'tuning box' type of device.

I have tried and tested many, never been impressed by any of them especially when you read live parameters while running a car on the dyno that has a box fitted.

black smog anyone?

Superchips is a 'plug-in' box, so is the Diesel Performance Tuning and the Steinbauer PD. These are all well established, reputable companies that have quite some years of experience and offer warranties and insurance against anything going pop. You may well have seen various dubious devices, but there are perfectly decent units out there too.

Spider are in my experience a decentproduct.

Dragon Performace do plug in boxes and i ad no issues with running one BEFORE i removed it fo rmy remap.

In fact, my dad is running one on his 57 plate Leon

I put this chip... Skoda Fabia 1.4 TDI 69 PS | Skoda | Cars | DTE Diesel Tuning UK Ltd

in my Skoda Fabia 1.4, and it goes like a dream.

I get much better fuel economy and around an extra 50Nm of Torque!

Cheers, Trev.