Tuning the KV6 engine is not a cheap process and will not give you masses of horsepower. However you can do a number of modifications that will improve the driving pleasure and still surprise a few people in the process!
The most common tuning components are listed here:
Replace the standard induction system for any one of these three recommended versions:
- Open cone in inner wing, cheapest.
- BMC CDA and cold air feed.
- ITG Maxogen, bespoke kit but expensive.
Then go for replacing your exhaust, a good quality stainless exhaust will improve it a little, mainly looks! For further improvements replace the manifolds for Janspeed or Hayward & Scott, sports cat or decat pipe, a MIL eliminator maybe required.
Change the springs for lowered and uprated ones, sharpens the handling even more! Shop around as some are getting hard to find, Eibach or Moto-Build. Coilover kits are available but expensive.
Quaife do an ATB diff, again a worthy mod but expensive as this requires building properly.
Piper do cam kits for these, expensive but a marked improvement.
A custom ecu is advisable once you get to cams, the standard Siemens ecu can cope with the induction and exhaust changes as it has an ability to learn this level of change.
Going beyond this was a supercharger kit, but this is a sore subject on many forums and there are only 1 or 2 still running with little issues but have undergone alot of development and those that have done this are in no position to want to share the findings. Turbo charging is impossible as there is no room in the engine bay for this.
Final action would be to carry out an engine transplant, Reyland offer a VAG 20vT conversion and this looks like an awesome package.
I'll pop back in later and add to this before I get timed out!
