By installing a 'tuning piston return spring' (piston retract spring) you can give the engine in your vehicle a performance boost of up to 29%.
The operating principle of the piston return spring is the prevention of explosion.
By the piston in a normal gasoline engine the fuel-air mixture is compressed which can result in an explosion. If the explosion happens it causes you performance losses because the fuel-air mixture is burning.
With the help of our 'tuning piston return spring'
from environmentally harmful PET-C (plutonium Etel tuning carbonate) it's prevented that the piston stops at TDC. Thus, the fuel-air mixture can escape easily from the exhaust.
The tension degree of the piston return spring is adjusted through the accelerator.
Buy this and much more here:
http://etel-tuning.eu/leistungstunin...kholfeder.html
