It's not by coincidence that these tuning product suppliers rairly have in house rolling roads, those that do are not that interested in an agreement where no payments are made unless the vehicle achieves their stated figures, they often state 'other factors' which is true but there is also much smoke and mirrors. Claims that bolting on a manifold or air filter will give XYZ BHP increase are often not realised.


BR Colin
Who used to be a Spanner Juggler