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Modern performance tuning is no longer limited to loading a single calibration into an ECU. As vehicles become more sophisticated, tuners and enthusiasts need greater access to engine parameters, bett … read more

More horsepower is only useful if the vehicle can slow down with confidence. As vehicles become heavier, faster, and more powerful, the braking system has to handle greater thermal loads and repeated … read more

More power creates more heat. As engines produce greater horsepower and vehicles are driven harder, the factory cooling system can become one of the most important limitations to address. Maintaining … read more

As power levels increase, the demands placed on a vehicle's supporting systems increase with them. Higher boost generates more heat. Larger turbochargers require greater charge-air flow. Repeated hard … read more

X-PH.com is excited to introduce German Car Accessories (GCA), a brand focused on aftermarket upgrades for some of the most popular German performance and luxury vehicles. With a product range coveri … read more