| GS226 | polishing of a valve | 25,00 € |
| GS209 | porting of the cylinderhead and machining of the valve seats "stage1" | 460,00 € |
| GS210 | porting of the cylinderhead and machining of the valve seats "stage2" | 670,00 € |
| GS216 | set of "sport cams" for stock engines | 465,00 € |
| GS261 | set of clutch springs version "street" | 38,00 € |
| GS259 | set of stiffer clutch springs | 47,00 € |
| Gs235.2 | shim for "shim under bucket" | 10,00 € |
| GS232 | valve seat inlet | 32,00 € |
| GS234 | valve spring kit | 205,00 € |
| GS203 | wages for one hour work | 60,00 € |
