APR Stage 3+ PowerMax Turbo System With Port Injection & LPFP For VW MK8 GTI

On the MK8 GTI's EA888 Gen 4, the factory fuel system, not the turbo, is the real ceiling. A bigger turbo alone runs out of fuel. The APR Stage 3+ PowerMax GT2563S Turbocharger System solves airflow and fuel together, with the factory ECU in control.

The Garrett PowerMax GT2563S is the same direct-replacement turbo APR uses on the MK8 Golf R, adapted to the GTI with a dedicated fit kit and hardware. To feed it, APR adds Multi-Port Injection (four 980cc ethanol-compatible Bosch Motorsport injectors on the factory intake manifold) and the genuine VW MK8 Golf R brushless low-pressure fuel pump and controller. High-range MAP sensors let the ECU measure and report boost above the factory sensor limits.

APR Stage 3+ ECU software is included. The factory ECU runs the direct and port injectors together, monitors low-side fuel pressure full time, and reduces torque if pressure drops. Torque-by-gear management and a launch torque strategy are built for front-wheel-drive traction, with full power from 4th gear. Choose the 350 WTQ or 400 WTQ file on 91, 93, or E85; the 400 WTQ file requires the APR DQ381 TCU Upgrade. Software flashes at home with APR Ultralink or at an APR dealer.

The result: up to 521 WHP and 410 WTQ on E85, up from 249 WHP and 303 WTQ stock, and a best 60-130 mph of 8.64 seconds (E85, Dragy, best of four runs). OEM-style cold starts, idle, diagnostics, and factory safety strategies stay intact.

Features:

• Up to 521 WHP and 410 WTQ on E85 (High Torque file), up from 249 WHP and 303 WTQ stock; 449 WHP and 402 WTQ on 93 octane
• Best 60-130 mph of 8.64 seconds on E85
• Garrett PowerMax GT2563S, the same direct-replacement turbo as the APR MK8 Golf R kit, with GTI fit kit and turbo hardware
• APR Multi-Port Injection: four 980cc ethanol-compatible Bosch Motorsport port injectors, fuel rail, distribution block, and harness
• Genuine VW MK8 Golf R brushless low-pressure fuel pump and pump controller
• High-range intake manifold and charge pipe MAP sensors for accurate boost measurement above factory limits
• APR Stage 3+ ECU software included; direct and port injection both run on the factory ECU, with no standalone ECU or injector controller
• 350 WTQ and 400 WTQ files on 91, 93, and E85; the 400 WTQ file requires the APR DQ381 TCU Upgrade
• Torque-by-gear and launch torque strategy built for front-wheel-drive traction, with full power from 4th gear
• APR Fuel Pressure Protection monitors low-side fuel pressure full time and reduces torque if it drops
• OEM-style cold starts, idle, diagnostics, and factory safety strategies retained
• ECU and TCU software flash at home with APR Ultralink or at an APR dealer
• High-flow catalyst files available: boost control recalibrated to prevent overboost, up to 534 WHP on E85 with a high-flow catalyst (not included)