I found this on facebook from Bulgarian
https://m.facebook.com/4ringsOOD/pho...=page_internal
Audi RS6 V8 4.2 GT30
- manual gearbox
- forged connecting rods and pistons
- custom exhaust manifolds
- custom full exhaust system
- 2xAEM320 fuel pumps
- 870cc fuel injectors
- big MAF housing
- water - meth injection