HP Tuners Unlocks C8 ZR1’s 1,064-HP Engine To Make 25% More Power

If you want a 1,300-horspower C8 Corvette without electric assist and all-wheel drive, you now have an option. HP Tuners has finally unlocked the ECM for the 1,064-horspower Corvette ZR1. That lets you push the hyper-Vette even harder, and the company says you should be able to get up to 25% more power from your LT7 V8. The limit on that extra performance, at least according to HP Tuners, is one we haven’t really seen before.