06/03/2026
One word: PRO
The JB4 PRO for the C8 Corvette ZR1 is one of Burger Motorsports’ latest plug-and-play piggyback tuner specifically developed for the 2025+ C8 ZR1’s twin-turbo LT7 engine.
It installs between the factory sensors and ECU, without flashing the ECU.
Key Performance Gains (dyno results on a stock ZR1):
• Stock baseline (93 octane): 1,005 whp / 820 wtq
• Map 1 (93 octane): 1,048 whp (+50 whp)
• Map 3 (100 octane): 1,107 whp / 980 wtq (up to 100+ peak whp and 220+ whp under the curve)