Description
TTE670 VTG Upgrade Turbos Porsche 997.1 Turbo audi a8 d5 17 50 tfsi 286 esi5127412 These valve springs are tailored ATMSYGR05 These valve springs are tailored to Audi 5 cylinder 20v engines with performance upgrades such as high lift camshafts and larger turbos which guarantees quality and reliability • Porsche 997 the ECU software will need to be adjusted