> Honda & Acura performance racing engine valves by SINUS
SINUS offers its wide range of performance racing valves series under the SINUS PERFORMANCE brand name, for Honda and Acura engines.
From performance stainless steel, through nickel superalloys, and up to designated titanium alloys, SINUS performance valves will provide ultimate benefits to your Honda or Acura engine.
Whether you intend your engine for street performance, drag or professional racing purposes, SINUS professionalism and experience in design, configuration, metallurgy and production of valves for Japanese performance engine, constitutes a cutting edge upon its competitors.
SINUS was established in 1949 and is one of the most experienced and senior manufacturers of valves for internal combustion engines. SINUS conducts constant research and development (R&D) activities in order to keep its technological pulse beating faster and stronger then any other valves manufacturer. SINUS is practically the only valves manufacturer that manages innovate the industry with cutting edge processes, treatments and solutions that redefines the term quality time after time.
Quick Links:
• HONDA CIVIC SI B16A3
• HONDA DEL-SOLl B16A1
• ACURA GSR B17A1
• ACURA GSR B18C1-3
• ACURA RSX K20A
• ACURA TSX K24A
• HONDA S2000 F20A
• HONDA ACCORD F22B1
• HONDA ACCORD F22B2-B6
SINUS Performance Series™ 
- 21-4N (EV8) - Austenite stainless steel single piece forged Structure
SIL-1 (HNV3) - Hard tip
Hard chrome plating
Sprial polish
JetFlow Cut™ - Undercut stem on Intake Valves
Your choice of dished or flat valve head
SINUS Performance Plus Series™ 
- 21-4N (EV8) - Austenite stainless steel single piece forged Structure
SIL-1 (HNV3) - Hard tip
Hard chrome plating
Stelite #6 Faced Seat - Substantial valve head strength empowerment
Spiral polish
JetFlow Cut™ - Undercut stem on Intake Valves
SnakeSkin Superfinish™ - Friction reducing solution
Your choice of dished or flat valve head
SINUS Extreme Performance Series™ 
- 21-4N (EV8) - Austenite stainless steel single piece forged Structure
SIL-1 (HNV3) - Hard tip
Physical Vapor Coating Deposition - CrN | TiN | ZrN | M.L.S.P™
Mirror Polish
JetFlow Cut™ - Undercut stem on Intake Valves
Your choice of dished or flat valve head
SINUS Ultimate Performance Series™ 
- Inconel X-751 / Nimonic N80A - Nickel superalloy Bi-Metal structure
- SIL-1 (HNV3) Martensite Stainless Steel - Hard tip
- Physical Vapor Coating Deposition - CrN | TiN | ZrN | M.L.S.P™
- Mirror Polish
- JetFlow Cut™ - Undercut stem on Intake Valves
- SnakeSkin Superfinish™ - Friction reducing solution
- Your choice of dished or flat valve head
Quick Links:
• HONDA CIVIC SI B16A3
•
HONDA DEL-SOLl B16A1• ACURA GSR B17A1
• ACURA GSR B18C1-3 •
ACURA RSX K20A •
ACURA TSX K24A •
HONDA S2000 F20A
• HONDA ACCORD F22B1
• HONDA ACCORD F22B2-B6