Sinus Performance Series engine valve set suitable for the XU9J2 / XU9JA engine found in Peugeots 205 / 309 GTI.

SINUS is one of the world’s most senior and experienced manufacturers of valves for internal combustion engines. 

SINUS valves are manufactured under strict quality and management standards in order to maintain their reputation for excellence and to keep providing our worldwide patronage with premium quality, highly durable and longer lasting engine valves. 

Spoox Motorsports sinus valve kit inlcudes 4 x 41.60mm diameter inlet valves and 4 x 34.60mm diameter exhaust valves both with 8mm stems.

SINUS Performance Series™

Structure : Bi-Metal / Single Piece Forged

Material : 21-4N (EV8) Austenite Alloy

Hard Tip : SIL-1 (HNV3) Martensite Alloy

Coating : Hard Chrome Plating

Spiral Polish : Yes

JetFlow Cut™ : Yes (Intake Only)

SnakeSkin Superfinish™ : No

Valve Head : Full Machining

Valve Head Design : Dished / Flat

For more information on our sinus performance valves or any other of our competition products please do not hesitate to contact us.

Spoox Part Number : OEP284INL / OEP285EXH

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