A common upgrade to the 3.0L GU Patrol is the fitment of a Manta 3″ exhaust system. The ZD30 3.0L turbo diesel motor was first released in the Patrol in 2000, replacing the old 2.8L 6 cylinder motor, and was later upgraded with a common rail fuel injection system in 2008. The power figures look good on paper – 116kw and 354nm (118kw and 380nm in the common rail motor), however in reality the power delivery is very “peaky”, with the motor having to be revved hard before the power and torque became accessible.
The primary cause of the poor power delivery, and a contributor to the high exhaust gas temperatures commonly seen in these vehicles, is the restrictive factory exhaust system which chokes the turbo – preventing the motor from operating at peak efficiency, causing heat build-up. Replacing the factory exhaust system with the 3” Manta turbo back exhaust makes a world of difference. It allows the turbo to operate at its maximum capacity, spooling a lot earlier, thus coming onto full boost much quicker. This means the power and torque is more evenly spread throughout the rev range, making it more accessible down low.
The 3” exhaust also reduces exhaust gas temperatures dramatically, helping the engine run cooler. Whether you’re chasing an exhaust noise level close to stock, or you want it as loud as possible, we have a number of combinations available to give you the note you’re chasing.