" Big news here from Weistec Engineering who has managed to keep their Mercedes-Benz McLaren SLR twin turbocharger development under wraps until now. The Mercedes-Benz McLaren SLR as you know has an M155K supercharged 5.5 liter AMG V8 which is based on the M113K supercharged 5.5 liter V8 familiar to us from the W211 generation E55 AMG. Weistec decided to remove the supercharger on the SLR and add a pair of twin turbos in.
The Weistec SLR Biturbo system is still under development so few details will be shared at this time. What we can tell you is it will be officially released later this year. Additionally, Weistec will have M155K V8 built motor options with forged internals for those that want big boost. The system will be sold as a package.
As far as power figures expect some eye opening numbers when the time comes.