Hennessey unveils 745kW McLaren 765LT power upgrade

US-based tuning house Hennessey Performance Engineering will offer an engine upgrade for the McLaren 765LT supercar, allowing for a power increase of approximately 32 per cent. Known as the HPE1000 package, the upgrade comprises new air filters for the car's 4.0-litre twin-turbo V8, a re-mapped factory ECU calibration, a stainless-steel exhaust downpipe upgrade, high-flow exhaust componentry, and a chassis dyno calibration.