After a few hours on the test bench real 132KW have come out with the following modifications: work on Coscast head, engineblocj drilled to first oversize, camshaft DS 603(278° without ramp,11,1mm stroke,108° spread,2mm OT hub at 108° spread) adapted suction tube, machined throttle valve, large racing fan manifold incl. dsop exhaust system, eased momentum, condensed is also a red Riding Hood and a CN insert filter atte. I am very satisfied with the tuning and can recommend the company Kaul with the best of conscience. When driving first I thought I had another car.Motor speaks much more spontaneously and looks more splashy.Easy class.No comparison to before. MfG Tigra2.0 16V