GeigerCars unveils the Mustang GT 250, which sports a 5.2L engine (4.6L to 5.2L stroker kit) that rockets it from 0-60 in just 4.2-seconds. Other upgrades include a high-performance exhaust manifold/muffler system, a multimedia sound system, and larger brakes. Few more images after the jump.

Precision-machining of both cylinder heads, installing sport camshafts and reinforcing the valvetrain are part of the GeigerCars power treatment as is a belt-driven supercharger with generously dimensioned intercooler

[via LeftLaneNews]