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Part number KPR-5/7S
Supertech 5mm single groove valve keeper (lock)
Price is for 1 pc. (2 pcs. needed for one valve)
BMW - 3.0 Turbo (N54B30)
Opel / Vauxhall - 1.6 (Z16LER)
Mini Cooper R56 - 1.6 Turbo (N14B16A, N14B16C, N18B16C)

Part number VS-M6.6I
Supertech intake valve seal for 6.6mm valve stem
Mitsubishi EVO - 2.0 16V (4G63, 4G63T)

Supertech intake valve seals are made from a high quality rubber compound.

Supertech 7mm single groove valve keeper fits for:
4 cylinder VW Corrado, Golf, Jetta engines - 1.8-2.0 16V (6A, KR, PL, 9A);
5 cylinder Audi 200, S2, RS2, S4, S6 engines - 2.2T 20V (3B, ABY, ADU, AAN);
Also for VW ABF and Audi 7A engines when using single groove valves

Valve springs data
Installed seat pressure:
Intake valve spring - 25kg, exhaust double valve spring - 36kg
Load:
Intake - [email protected], exhaust - [email protected]
Max lift:
intake - up to 11mm, exhaust - up to 12.7mm
Made from chrome-silicon steel SAE9254-V
12 pcs. intake valve single springs
8 pcs. exhaust valve double springs
12 pcs. intake valve spring titanium retainers
8 pcs. exhaust valve spring titanium retainers
Fits all 4 cylinder 1.8-2.0 20V Turbo/NA Audi / Seat / Skoda / VW engines.
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 9 and 4 g.