APS has designed and produced what is arguably the ultimate in bullet proof extreme flow Twin Scroll turbochargers for the Subaru Impreza enthusiast. Unencumbered by the limitations of current off the shelf WRX turbochargers, APS has totally engineered a "no-compromise" turbocharger from the ground up to match the exact requirements of extreme performance Subaru Impreza engines.
APS has utilized extreme flow Ball Bearing Turbochargers, rotated to avoid the restrictive standard intake duct, in its race cars for many years. The twin scroll design of the APS TSR turbocharger permits separate exhaust gas pulses from each cylinder bank to effectively drive the turbocharger's turbine with the maximum exhaust gas energy possible. This results in quicker turbocharger response and higher horsepower than an equivalent non-twin scroll design. The APS TSR turbocharger incorporates innovative anti surge ports that effectively broaden the turbocharger compressor's operating range particularly near the surge line of the compressor map. At the surge point, compressed air is permitted to pass through the compressor wheel and into the anti-surge slot and ports, thus drastically reducing compressor surge.
Unlike turbochargers designed to suit the stock position and orientation,APS TSR Series turbochargers are supplied as a comprehensive and complete bolt-on complete system.
To coincide with the release of the APS TSR70 turbocharger, APS has designed the ultimate Twin Scroll up-pipe that delivers a double blast of separate exhaust gas pulses to the turbocharger. The true twin scroll design completely eliminates the mixing of exhaust gasses from left and right cylinder banks. This delivers a huge amount of energy (hence horsepower). In addition, the APS up-pipe included with the APS TSR 70 turbocharger incorporates a remote wastegate connection.
Though it does not end there!
For rock steady boost control, the APS TSR 70 turbocharger isdelivered complete with a competition, 44mm Tial vee band mount wastegate system. The wastegate is designed to divert a balanced flow of exhaust gas from each of the two exhaust gas routes in the APS up-pipe.
For the highest possible exhaust gas flow with the minimal back pressure, a 'V' band mounted full 3.5" turbine outlet pipe is provided. This will directly attach to any APS turbo back exhaust system.
In addition, a custom moulded silicon compressor discharger hose, A286 turbine mounting studs, teflon lined braided stainless steel power steering, oil lines, all necessary clamps and hardware are all supplied.
Taken all together, you have the ultimate Subaru rotated mount turbo system the APSWRX-RMT/03.
A completely new APS High Flow Cold Air Intake system delivers a huge straight-shot of chilled fresh air directly into the wide compressor mouth of the APS TSR turbocharger.
The APS cold air intake system accommodates stock style MAF metering through the MAF venturi supplied with the APS system. Best of all, for those Subaru horsepower enthusiasts who overwhelm the stock MAF meter at extreme horsepower levels, the MAF venturi is removable and markedly increases the cross sectional area at the MAF metering point from 65mm to 80mm. This now gives huge headroom for even greater air flow, larger fuel injectors, more effective air flow metering at high horsepower levels - and of course far greater tunability from the MAF meter.
Ultimately, a complete extreme horsepower turbocharger solution that leaves nothing to chance. Highly engineered and manufactured with great precision, this range of components from APS represents many years of research and development and is arguably the ultimate in high horsepower turbocharging for the Subaru WRX/STI.
System Components:
- APS Twin Scroll Rotated Mount Ball Bearing Turbocharger
- 44mm TiAl v-band mount wastegate system
- Cold Air Intake To Suit Rotated Mount Turbos
- APS up-pipe
- APS Turbocharger System
- Installation/Labor
- Street Tune
- APS Twin Scroll Header (+$834.07)
- D/R 525 Front Mount Intercooler System *Black or Silver (+$1,449.82)
| Kit: | $3,576.97 |
| Install: | $800.00 |
| Street/Tune: | $300.00 |
| Package Price: | Starting at $4,676.97 |
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*Images may not reflect actual product.