Car: 2005 TW VR-X AWD Magna
Mods: HM Headers *no other performance mods*, on ULP 91
Tyres: Yokohama A.drive @ 36psi
Dyno: Mainline AWD Dyno @ Ultimate Tunes ACT
Power (Std Exhaust): 105.3kW @112kph @ 5270rpm
Torque (Std Exhaust): 208Nm @90kph @ 4330rpm
Power (HM Headers): 112.7kW @104kph @ 4775rpm
Torque (HM Headers): 228Nm @92kph @ 4425rpm
RPM-based charts, based on CSV data export from Dyno @ 250RPM intervals:
FWIW, with HM headers, the output is more than the stock peak output all the way from 4400rpm to 5700rpm. At 5000rpm and lower, the HM headers consistently produce 8-10% more torque than stock.




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