The ASAP PCH also known as the  ASAP 924 Turbo PCH or simply Turbo PCH, is a limited-production, high performance Porsche Turbo 924 produced by Advanced Systems And Performance of Los Angeles California.

Developed by Advanced Systems And Performance, designed and built by Maverick Mann in the spring of 2009 and based on the Porsche 924 Turbo platform.

The ASAP PCH featured a hand modified  louvered functional hood that dropped engine temperatures 22 degrees with over a 150 individual louvers which was hand crafted by master fabricator Scott Ruddin.

The Turbo PCH also features an enlarged KKK Turbolader Turbo and a highly tuned version of Porsche's in line-four cylinder engine, Hal Holbrook flared body panels, BBS 19 inch wheels, upgraded suspension and braking systems, a custom-designed LSD quaffe, and several unique trim pieces to create the one of a kind wide body pre-944 flared fender look.

Much attention was given to aerodynamic considerations as well as usable  form and function being one of the key elements of the Turbo PCH’s design and styling theme. The prototype model used the 924 Turbo hood and made the factory NACA duct functional by piping air flow directly to the inter-cooler. This along with the louvered hood to assist in dissipating increased engine heat put out by the larger Turbo unit.

The Turbo PCH Develops 305 hp and 288 lb·ft of torque and weighing in it at only 2,130 pounds, the PCH has outstanding performance, with a 0-60 mph time of around 5.6 seconds and a top speed in excess of 165 miles per hour.

The car received its nickname, "PCH", during testing by Maverick Mann, who shook the car down on test drives home on the Pacific Coast Highway through a 27 mile strip in  Malibu California and noted how well the turbo four cylinder ran in coastal sea air and started calling the car the “Turbo PCH”.