1999-2000 Honda Civic Si Race Flo Intake Valve - Single by Manley Performance
The Race Master, and the Pro Flo version identified as Race Flo valves, are manufactured with 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 8000 rpm or below. Generally, higher engine speeds require titanium valves. Engine builders who have 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 page and the next demonstrate that the Manley Race series is equal to the best offered by any competitor.
Features
- Head Diameter: 33.0mm
- Stem Diameter: 5.48mm / .2157"
- O/A Length: 102.40mm
- Tip Length: 2.5mm
- Underhead Angle/Radius: Pro Flo 22° x 5/16°
- Margin: 0.050"
- Seat Width: 0.075"
- Head Top: 17° Dish
- Chrome stems and hard tips
- Swirl polished and fully machined
- NK-842 stainless intake material
Benefits
- Ideal for drag racing and oval track racers operating under 8,000 rpm. Generally, higher engine speeds require titanium valves.
- Equal to the best offered by any competitor
- Up to 40% increase in flow on small port OE style cylinder heads
- Proven performance gains on the flow bench
Please 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
- Manley products are sold without warranty due to the nature of their intended use.
Before Ordering
〇 About Import Consumption Tax
At Shaftoya Shopping Site, we pay the import consumption tax incurred at the time of import on your behalf, so there will be no additional charges other than the total amount paid at checkout.
〇Confirmation of Compatibility
Since our entire product database is based on North American vehicles (USDM), please confirm compatibility with Japanese vehicles (JDM) before placing your order. (If you are unsure whether the listed product is compatible with your vehicle, please feel free to contact us. Our support team will investigate for you.)
If you place an order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if products are sorted by selecting the year, manufacturer, and vehicle model on the tabs of our home page, this does not necessarily mean they will fit 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 costs are paid at the time of settlement. Estimates for shipping costs are automatically calculated when you enter your shipping address on the checkout page. For large items such as body parts, there are rare cases where there is a significant discrepancy between the automatically calculated shipping cost and the actual shipping cost. In such cases, we will contact you individually by email.
In principle, all products are shipped internationally from our U.S. warehouse. Unlike domestic shipping in Japan, international shipping takes about 7 to 14 days, so please order with enough time. If you are in a hurry, please contact us in advance to confirm the delivery date. Note that all products are transported by air. They are never shipped by sea freight.
○ Regarding Compliance with Japanese Vehicle Inspection (Shaken)
All products we handle are basically designed and manufactured outside of Japan. Please note that they are not compliant with the "Japanese Vehicle Inspection System," and we cannot provide strength calculation documents or similar paperwork for the Japanese inspection system. Therefore, all parts are sold for the purpose of "circuit, private property, or off-road use," and installation and use are at your own risk.
○ Regarding Warranty
Please check the contents immediately upon arrival. As all products are shipped internationally from outside Japan, there may be shipping damage to the packing boxes or the products themselves. Please understand that we will only provide returns, refunds, or replacement exchanges for products with shipping damage, defective products, or products different from your order if you contact us within 7 days of receipt. Please also note that for products sold through us, all warranty-related support will be handled "exclusively through us." We do not provide support through other companies or agents located within Japan.