The most common upgrade for any 4.2L Patrol owner, is the fitment of a 3″ Manta exhaust system. The 4.2L turbo diesel 6 cylinder motor in the GU Patrol, an improvement on the naturally aspirated type made famous in the previous GQ model, was available from early 2000 until 2006, when it was phased out due to emissions laws. It was upgraded in 2002, when an intercooler was fitted as standard.
Despite the addition of the turbo charger, the standard power and torque of 114kw and 360nm was not ground-breaking in any sense, so many 4.2L Patrol owners have puzzled over how to get more power from their motor.
The easiest and most effective way is to upgrade the exhaust system to a 3″ version, which offers vastly increased flow when compared to the standard version. This has a number of benefits, including increased power and torque, less turbo lag, and far more responsiveness low-down in the rev range. Fuel economy generally improves as well, as the engine is able to operate cooler, and more efficiently.
A number of configurations are available to give you the noise level you desire – whether you want it quiet or wild, we can do it! The exhaust is a stand-alone modification that can be fitted to a completely stock vehicle.
Give your 4.2L Patrol the new lease of life it deserves by fitting a Manta exhaust!