***MANUAL TRANSMISSION EQUIPPED CARS ONLY*** Torque output is too high for the 4-speed automatic to handle reliably.
Peak Gains: 95whp/170wtq!
Flywheel Rated Numbers
Stock 2008 HHR SS: 260hp/260tq
E47 Tuned 2008 HHR SS: 360hp/445tq
*Using only a very conservative estimate of 7% drivetrain loss to the wheels
Unlike many competitors out there, we do not advertise our gains as “under the curve” gains. We measure our delivered power output in terms of PEAK performance numbers. Gains “under the curve” for our tunes can be substantially higher than the 95whp advertised above, depending on RPM compared.