The JRP range of ram pipes are designed for use on Weber 40 and 45 DCOE style carburettors. 37mm of the JRP ram pipe 'slots' into the carburettor. Please note: they will not fit Dellorto equivalent carburettors. The JEM range will fit Rover V8 applications.
Whenever an ITG filter replaces an original equipment inlet system, the fuel metering systems on an engine may need adjustment to compensate for the change in air flow capacity. (The full engine range should be checked on a rolling road).