Sierra OHC manifold; outlet 50,8 LHD

Martelius Exhausts are made in Finland for Left hand drive cars so may not fit Right hand drive vehicles. If your car has the steering column on the intake side of the engine then the exhaust manifold should fit no problem. If your steering column is on the exhaust side of the engine then the Exhaust manifold will probably not fit and may require modification to clear the steering column. 

Sierra OHC 4-2-1 manifold. Pipe diameters (mm): 44.5-> 44.5-> 50.8 Note: Choose outlet pipe diameter; 50.8mm or 63.5mm - manifold fits to Martelius exhaust systems 160 013 (2") and 160 018 (2,5"). Welding is needed in order to fit with the original exhaust system.