In the wake of a VW Group-wide emissions testing scandal, the task of producing a 400-plus hp Golf falls into the hands of tuning companies since the R 400 Concept project had been cancelled from the fallout.

Austrian tuner outfit O.CT Tuning has done the deed, and then some, giving the mk7 Golf R 450 hp and 550 Nm of torque from its most potent package. Speaking of which, there are intermediate packages rated at 370 hp / 460 Nm, 378 hp / 480 Nm, and 395 hp / 505 Nm, from the standard car’s 300 hp and 380 Nm of torque.

Performance details are scant, however increases in acceleration and top speed can naturally be expected over those of the standard car, which does the century sprint in 5.3 seconds (4.9 seconds with the six-speed DSG transmission) and a limited top speed of 250 km/h. Unrestricted, the factory standard Golf R is said to be capable of 270 km/h.

Modifications apply to both hardware and software; this 450 hp kit includes uprated air intakes, turbocharger, exhaust downpipes including sport catalytic converters, a stainless steel exhaust system, intercooler, oil cooler, and reinforced clutch.

On the software front, engine code is modified too, and the transmission software is revised for a torque limit increase, higher RPM, and quicker gear changes. It won’t be surprising that O.CT Tuning can also cater for other models within VW Group brands, such as the Audi S3 and the SEAT Leon Cupra.

GALLERY: Volkswagen Golf R 400 Concept