Valve springs VW / Audi 1.8 2.0 16V KR PL 9A retainers FCP

Valve springs data
Installed seat pressure – 38kg
Load – 100kg@12.5mm
Max. lift – up to 13mm
Made from chrome silicone steel SAE9254-V
Outer spring outer diameter: 30.50mm
Outer spring inner diameter: 23.20mm
Inner spring outer diameter: 21.20mm
Inner spring inner diameter: 16.20mm
16 pcs. outer springs
16 pcs. inner springs
16 pcs. titanium retainers
Fits all 4 cylinder 1.8 2.0 16V VW / Audi engines KR, PL, 9A.    
With this set the risk of valve flutter and a possible engine failure is minimized.
Recommended for engines with series and racing camshafts and over 7600 RPM.
Titanium retainers are very strong and light, they help to eliminate valve float. Weight is only 10g.