Clutch Springs Polini d=105mm

Tuned engines are of course showing what they're capable of at high rpm mostly, but have a tendency to perform poorly at low rpm. Poor off-the-line acceleration is one of the things you'll see a lot with these engines. To avoid that your engine underperforms like this, Polini has these clutch springs for stock clutches coming in different strengths. Definitely something you should get if you have a sports exhaust.

Polini Clutch OEM with 2 clutch shoes.