Skip to product information
1 of 1

Manley Performance 28.0mm Race Master Exhaust Valve - Single | 1999-2000 Honda Civic Si (11373-1)

Manley Performance 28.0mm Race Master Exhaust Valve - Single | 1999-2000 Honda Civic Si (11373-1)

SKU:MAN11373-1

Regular price R$ 342,00
Regular price Sale price R$ 342,00
(Duties & import taxes included)
Import Duties & Taxes

The displayed price includes import duties and taxes. In principle, no additional payment is required upon delivery. If the shipping carrier nevertheless charges you import duties or taxes upon delivery, please pay the charges first. Shaft Shop will reimburse you for the amount paid.

Sale Sold out
Shipping calculated at checkout.

In stock | Estimated delivery: 5–8 business days

International shipping rates are calculated at checkout.
Authorized U.S. Suppliers Sourced through authorized channels
Tracked International Shipping Track your shipment to your destination
Japanese & English Support Contact us about fitment and delivery
FAQs: Duties, Delivery & Fitment → View full details

1999-2000 Honda Civic Si Race Master Exhaust Valve - Single by Manley Performance

Race Master, and the Pro Flo version identified as Race Flo valves, are manufactured from XH-426 material for exhaust and NK-842 material for intake. This series of valves is intended for bracket, drag, and oval track racers operating at or below 8000 rpm. Generally, engine speeds higher than that require titanium valves. Any engine builder who has successfully used EV-8 alloy (21-4N) valves will find this series of Manley valves to be an excellent product at a most attractive price. The ultimate tensile strength tables on this and the next page demonstrate that the Manley Race series is equal to the best that competitors have to offer.

Features

  • Head Diameter: 28.0mm
  • Stem Diameter: 5.46mm / .2150"
  • O/A Length: 102.70mm
  • Tip Length: 2.5mm
  • Underhead Angle/Radius: 25° x 11/32°
  • Margin: 0.065"
  • Seat Width: 0.080"
  • Top: 20° Dish
  • Chrome stems and hard tips
  • Swirl polished and fully machined
  • XH-426 stainless exhaust material

Benefits

  • Ideal for drag racing and oval track racer operation below 8000 rpm - titanium valves are generally required for higher engine speeds
  • Equal to the best that competitors have to offer

Note: The image provided is generic and may not be an exact representation of the product you will receive.

Applications

  • 1999-2000 Honda Civic Si

What's in the box?

  • 1 - Valve

Warranty

  • Due to the nature of their intended use, Manley products are sold without warranty.


Before Ordering

〇 Regarding Import Consumption Tax
At the Shaftoya shopping site, we cover the import consumption tax incurred at the time of import, so there are no additional charges beyond the total amount paid at checkout.

〇 Checking Compatibility
Since our entire product database is based on North American vehicles (USDM), please confirm whether or not parts can be installed on Japanese vehicles (JDM) before ordering. (If you are unsure if a listed product is compatible with your vehicle, please feel free to contact us. Our support team will check it for you.)
If you order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if items are sorted by selecting the year, manufacturer name, and vehicle model in the tabs on our home page, this does not necessarily mean they are compatible with Japanese models without modification.
All products have been translated into Japanese using translation software. As there may be confusing expressions, please contact us before ordering if you have any questions.

○ Regarding Shipping
Shipping fees are paid at the time of payment. Shipping estimates are calculated automatically when you enter your shipping address on the checkout page. For large items such as body parts, there are rare cases where the automatically calculated shipping fee differs significantly from the actual shipping cost. In such cases, we will contact you individually via email.

All products are generally shipped internationally from our U.S. warehouse. Unlike domestic shipping in Japan, international shipping takes about 7 to 14 days, so please order with time to spare. If you are in a hurry, please contact us in advance to confirm delivery times. Furthermore, all products are transported by air freight; they are not shipped by sea.

○ Regarding Compliance with Japanese Vehicle Inspections
The products we handle are basically all designed and manufactured outside of Japan. Please note that they are not compliant with the "Japanese vehicle inspection system," and we cannot provide documents such as strength calculation sheets for the Japanese inspection system. Therefore, all parts are sold for the purpose of "use on circuits, private property, or off public roads," and installation and use are at your own risk.

○ Regarding Warranty
Please check the contents immediately upon arrival of the product. Since all products are shipped internationally from outside Japan, there may be shipping damage to the packing box or the product. We will only provide returns, refunds, or replacement exchanges if you contact us within 7 days of receipt regarding products with shipping damage, defective products, or products different from your order. Please understand this policy. Also, for products sold through us, we will handle warranty matters "only through us." Please note that we do not provide support through other companies or distributors located in Japan.