45 mm DIY Exhaust Pipe Kit to make your own exhaust. The set consists of bends and lengths which generally should be sufficient for one system.

The wall thickness is 1.5 mm, and the material is stainless steel.
Officially, the tube 44.8 mm, but the industry size is often referred to as a 45 mm.

The tubes are also available in steel.

What's in it:

1 x 45 mm x 990 mm tube with mouthpiece
1 x 45 mm x 490 mm tube with mouthpiece
1 x 45 mm x 180 tube with nozzle
1 x 45 mm x 90 º tube with mouthpiece
1 x 45 mm x 60 º tube with mouthpiece
1 x 45 mm x 45 º tube with mouthpiece
1 x 45 mm x 30 º tube with mouthpiece