Your trusted source of JDM parts shipped direct from Japan

Your trusted source of JDM parts shipped from Japan

JDM parts shipped direct from Japan

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Tomei Oversize Valves

The Tomei Oversize Valves

The Tomei Oversize Valves have been designed from the ground up for increased strength and fatigue resistance while improving air flow and therefore engine performance.

  • 1mm oversized compared to standard
  • Designed for increased flow efficiency on intake and exhaust
  • Thinner exhaust stem design enabling greater air flow and lighter weigh
  • High precision design for optimum sealing capabilities 
  • Surface treatment on intake side for improved wear, fatigue rate with improved heat and corrosion resistance
  • Intake side features SUH35 material for high heat resistance
  • Exhaust side features Iconel 751 material for the highest level of heat resistance
  • Please see the exact size specifications from Tomei under Links below.

Further information available from Tomei under Links below.

 

 

Vehicle Product   Price Order
180SX - RS13
Nissan - PS13/S14/S15 - SR20DET - IN+EX Set
163401
USD $ 403.42
USD $ 476.29
Silvia - S13
Nissan - PS13/S14/S15 - SR20DET - IN+EX Set
163401
USD $ 403.42
USD $ 476.29
Silvia - S14
Nissan - PS13/S14/S15 - SR20DET - IN+EX Set
163401
USD $ 403.42
USD $ 476.29
Silvia - S15
Nissan - PS13/S14/S15 - SR20DET - IN+EX Set
163401
USD $ 403.42
USD $ 476.29
Skyline GT-R - BCNR33
Nissan - BNR32/BCNR33/BNR34 - RB26DETT - IN+EX Set
163400
USD $ 605.13
USD $ 714.43
Skyline GT-R - BNR32
Nissan - BNR32/BCNR33/BNR34 - RB26DETT - IN+EX Set
163400
USD $ 605.13
USD $ 714.43
Skyline GT-R - BNR34
Nissan - BNR32/BCNR33/BNR34 - RB26DETT - IN+EX Set
163400
USD $ 605.13
USD $ 714.43
Product   Order
180SX - RS13
Nissan - PS13/S14/S15 - SR20DET - IN+EX Set
163401
USD $ 403.42
USD $ 476.29
Silvia - S13
Nissan - PS13/S14/S15 - SR20DET - IN+EX Set
163401
USD $ 403.42
USD $ 476.29
Silvia - S14
Nissan - PS13/S14/S15 - SR20DET - IN+EX Set
163401
USD $ 403.42
USD $ 476.29
Silvia - S15
Nissan - PS13/S14/S15 - SR20DET - IN+EX Set
163401
USD $ 403.42
USD $ 476.29
Skyline GT-R - BCNR33
Nissan - BNR32/BCNR33/BNR34 - RB26DETT - IN+EX Set
163400
USD $ 605.13
USD $ 714.43
Skyline GT-R - BNR32
Nissan - BNR32/BCNR33/BNR34 - RB26DETT - IN+EX Set
163400
USD $ 605.13
USD $ 714.43
Skyline GT-R - BNR34
Nissan - BNR32/BCNR33/BNR34 - RB26DETT - IN+EX Set
163400
USD $ 605.13
USD $ 714.43

Vehicle Product   Price Order
Lancer Evolution IV - CN9A
Mitsubishi - Evo4-9 - 4G63 - IN+EX Set
163402
USD $ 403.42
USD $ 476.29
Lancer Evolution IX - CT9A
Mitsubishi - Evo4-9 - 4G63 - IN+EX Set
163402
USD $ 403.42
USD $ 476.29
Lancer Evolution V - CP9A
Mitsubishi - Evo4-9 - 4G63 - IN+EX Set
163402
USD $ 403.42
USD $ 476.29
Lancer Evolution VI - CP9A
Mitsubishi - Evo4-9 - 4G63 - IN+EX Set
163402
USD $ 403.42
USD $ 476.29
Lancer Evolution VII - CT9A
Mitsubishi - Evo4-9 - 4G63 - IN+EX Set
163402
USD $ 403.42
USD $ 476.29
Lancer Evolution VIII - CT9A
Mitsubishi - Evo4-9 - 4G63 - IN+EX Set
163402
USD $ 403.42
USD $ 476.29
Product   Order
Lancer Evolution IV - CN9A
Mitsubishi - Evo4-9 - 4G63 - IN+EX Set
163402
USD $ 403.42
USD $ 476.29
Lancer Evolution IX - CT9A
Mitsubishi - Evo4-9 - 4G63 - IN+EX Set
163402
USD $ 403.42
USD $ 476.29
Lancer Evolution V - CP9A
Mitsubishi - Evo4-9 - 4G63 - IN+EX Set
163402
USD $ 403.42
USD $ 476.29
Lancer Evolution VI - CP9A
Mitsubishi - Evo4-9 - 4G63 - IN+EX Set
163402
USD $ 403.42
USD $ 476.29
Lancer Evolution VII - CT9A
Mitsubishi - Evo4-9 - 4G63 - IN+EX Set
163402
USD $ 403.42
USD $ 476.29
Lancer Evolution VIII - CT9A
Mitsubishi - Evo4-9 - 4G63 - IN+EX Set
163402
USD $ 403.42
USD $ 476.29

Vehicle Product Price Order
Impreza WRX STI - GDB
Subaru - Impreza GDB C-G - EJ207/255 - IN+EX Set
163403
USD $ 403.42
USD $ 476.29
Product Order
Impreza WRX STI - GDB
Subaru - Impreza GDB C-G - EJ207/255 - IN+EX Set
163403
USD $ 403.42
USD $ 476.29
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Associated JDM Parts

Tomei - Adjustable Cam Pulley

TomeiAdjustable Cam Pulley

from USD $ 107.46
Nismo - Engine Mounts

NismoEngine Mounts

from USD $ 25.68
Tomei - Valve Springs

TomeiValve Springs

from USD $ 165.34
Tomei - Valve Guide

TomeiValve Guide

from USD $ 198.40
Tomei - Pro Cam

TomeiPro Cam

from USD $ 181.87

About Nengun Performance

Since the year 2000, Nengun Performance has supplied over 100,000 parts direct from Fukuoka, Japan to 150 countries worldwide. If you have any questions, our experienced and friendly customer service team is always happy to help, please send us an enquiry.

Nengun Performance, shipping JDM direct from Japan