Through school-Customized almost everything is doable.
Rotating at the same influx of tube length in a turbocharger Dragsters.

For a vintage BMW 328 Year Built 1937, a 6-3-1 exhaust system with long Krümmern and huge performance increase from the bottom out designed and manufactured.

A 250 Motocross engine from Suzuki was constructed in accordance with CNC-milled plates and keepers into the chassis of a 125 GP machine from Yamaha and fitted with a silencer completes.