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The W177 Mercedes A45 and A45S AMG represent the absolute pinnacle of the modern hyper-hatch segment. Powered by the spectacular hand-built M139 2.0-litre turbocharged engine producing up to 421bhp, it delivers physics-defying acceleration. Paired with the lightning-fast AMG Speedshift DCT 8-speed gearbox and the incredibly advanced MFA2 front-wheel-drive biased 4MATIC+ system featuring AMG Torque Control, this aggressive hatchback provides immense all-weather grip and supercar-slaying capabilities. JXL Performance supplies the elite aftermarket hardware required to push this AMG platform to its absolute limits.

Explore our full selection of W177 A45 and A45S AMG upgrades by category: To boost engine output and enhance your exhaust note, browse our Intake and Cooling ranges alongside high-flow Exhaust setups and uprated Turbocharger hardware. For rapid power gains, choose our Fuel/Ignition tuning modules, or fortify your hand-built engine block with Engine Build forged components for extreme power projects. Optimize power delivery with our Drivetrain, Suspension, and Wheels/Spacers products, while securing fade-free stopping power in our Brakes department. Finally, elevate your vehicle's aggressive stance with Exterior aero trim and Interior driver upgrades, while keeping your AMG running reliably with OEM-spec Service Parts. You can also explore our complete catalog in the Shop All Parts collection.