Click above for a gallery of the turbocharged APS HSV Commodore.
APS is in the business of making power and that's exactly what they've done for the new Pontiac G8 GT and its Aussie-spec sibling, the Holden Commodore HSV. The tuner's Stealth Intercooled turbocharger setup uses two water-cooled turbos mounted deep into the engine bay, just ahead of the transmission, to ensure underhood temps are kept in check – road debris be damned. According to APS, the system is a straightforward, bolt-in affair, utilizing a right-sized, aluminum, air-to-air intercooler, seven pounds of boost and a pair of TIAL 38mm external wastegates to bleed off exhaust gases and optimize throttle response. While APS hasn't installed the system on a Pontiac G8 GT yet, they've strapped its own blown HSV (with a three-inch cat-back exhaust) onto the rollers of a Dyno Dynamics dyno and produced 557 hp and 583 lb.-ft. of torque while running 93-octane. Pricing hasn't been announced yet, but considering how impressed we were with the standard G8 GT, this setup has the potential to redefine the bang-for-the-buck quotient in the segment.
APS is in the business of making power and that's exactly what they've done for the new Pontiac G8 GT and its Aussie-spec sibling, the Holden Commodore HSV. The tuner's Stealth Intercooled turbocharger setup uses two water-cooled turbos mounted deep into the engine bay, just ahead of the transmission, to ensure underhood temps are kept in check – road debris be damned. According to APS, the system is a straightforward, bolt-in affair, utilizing a right-sized, aluminum, air-to-air intercooler, seven pounds of boost and a pair of TIAL 38mm external wastegates to bleed off exhaust gases and optimize throttle response. While APS hasn't installed the system on a Pontiac G8 GT yet, they've strapped its own blown HSV (with a three-inch cat-back exhaust) onto the rollers of a Dyno Dynamics dyno and produced 557 hp and 583 lb.-ft. of torque while running 93-octane. Pricing hasn't been announced yet, but considering how impressed we were with the standard G8 GT, this setup has the potential to redefine the bang-for-the-buck quotient in the segment.
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