Currently running REVO stage 1+, stage 2 with some other tuning companies and was wondering if it is worth the extra outlay for a Miltek / Scorpion system? For the cost per BHP would you actually notice an increase hypothetical of say 10 BHP when you are already running 450 plus! Also the dreaded drone issues with Dsg would put me off. The only advantage I can see would be the noise under acceleration. I could be wrong but I think BCS just produce back boxes because they could see no real benefit in a full system. I stand to be corrected.