Speedflow manufactures a comprehensive range of flare reducers, expanders and extensions. We are also extending our range of plugs and caps to include metric to complement our popular imperial sizes. 951-03-04-BLK 951-04-06-BLK 951-05-06-BLK 951-06-08-BLK 951-06-10-BLK 951-08-10-BLK 951-08-12-BLK 951-10-12-BLK 951-12-16-BLK