BAR-TEK Chiptuning for VW Golf 4 R32 engines with turbo. Chiptuning V1: Garrett GT/GTX35 turbo Compression 8:1 Boost max. 1.8bar 630ccm injectors 90mm Air mass meter Upgrade of 1 o2 sensor in Downpipe for ECU.No. 022906032CN Please send your ECU to us after purchase. Other configurations on request. Manufacturer Information about the manufacturer BAR-TEK BAR-TEK Motorsport GmbH Im Rauschen Auel 3, 51491 Overath-Brombach, Germany info@bar-tek.com