We are proud to introduce our most powerful direct fit Buick turbocharger, the G4S-7268. This unit has proven itself by taking home the win in the TAI class with Ron Bailey at the 2018 GS Nationals. Proven 5 second performance out of your Buick, combined with quick response and big power. Unit comes complete with direct fit 3 bolt turbine housing, water coolant line kit and -4AN oil feed fitting. The G4S features the latest 9 bladed turbine wheel technology, dual ceramic ball bearings, twin gas seals on the compressor shaft for un-matched oil control, o-ring sealed billet aluminum backplate for leak free sealing at high boost and our high flow compressor cover in your choice of black ceramic, polished aluminum or natural finish.