After the design stage where we use known formulas, computer programmes or use our customers pipe spec, all segments are Lazer cut for optimum acuracy.

Then the segments are Rolled in to there cone shapes.

Next we assemble the segments together, and planish the welds to create a smoother transition for the gas flow from one cone to the next, it also relieves any stress built up in the welding process. 

Below is the finished article, this one for a Lambretta scooter.

Another batch of pipes ready to ship out to one of our customers