I offer you complete tuning kits or individual tuning services according to your needs. First of all, it must be clearly stated that changes of any kind on the engines lead to the loss of the operating permit and have to be removed individually from the door !!
Basically, a distinction must be made between 3- and 4-stud bolts. For the 3-stud bolts (lower lamp), the engines with 1 and 2 overflows must be distinguished.
Let's start with the lamp down motors with 2 overflows. The Wideframe engines with 4 stud bolts can be found under the category GS 150.