GBT 69 - 440-820 BHP

The 69mm frame GBT is the largest in the range. This option caters for the larger displacement or higher revving engines requiring greater power outputs. The 69mm is capable of producing engine output from 440-820bhp using 2.0 to 4.0 litre engine configurations. As with the 61mm frame, there are 5 compressor wheel size choices and the Ma7 and Ma5 covers can be used