Valve Spring Retainers are an indispensable part for any high powered, high speed engine. The combination of high lift camshafts and oversize valves will greatly increase the flow rate for fuel mixture to enter the combustion chamber.
When upgrading the valves to cope with the new high lift camshafts it is also necessary to upgrade the valve springs to maximize the new gains in performance and durability. High engine speeds and the dynamic movement of the valve trains mass can cause unwanted stress loads.
This causes abnormal valve jump or valve bounce which may result in engine failure. The Tomei Retainers are made from titanium alloy for added weight reduction while maintaining high strength properties and the precision required under such loads and stress. This will help keep the valves securely in place during the harshest of race conditions.
THINGS TO KNOW:
For JDM vehicles only
We don't guarantee fitment
Client responsible for research before purchase
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If cancellation of an order is needed, notice of cancellation with a manager of Tuned Japan must be made in writing within 24 hours from the date the order was initiated. This will be granted only at the discretion of Tuned Japan and may not be granted in cases were made-to-order or special order items have already been ordered. Some product images may show optional items that are sold separately or may not show the exact specification. Please contact us to confirm prior to your order if you have any questions. For example, and item that comes unpainted from the manufacturer may be shown painted and installed in the photo.
Tuned Japan will notify you if there are any errors with our product pricing, shipping calculations or sales tax computations prior to processing the order. Tuned Japan will not be held responsible for these errors and if unable to be mutually reconciled Tuned Japan will void the order and refund payment.
All products that are ordered on a pre-paid made-to-order basis or are not regularly stocked in the end-user's home country by the manufacturer or distributor are considered “special orders”. All special orders must be paid in full prior to starting the order. Special orders are non-refundable. Products ordered from Japan-based manufacturers may be eligible for a refund, at the discretion of the manufacturer or authorized distributor, if still in new condition and in original packaging. Any refund will be issued at our discretion and will be subject to a minimum 25% restocking fee on non-aero item. Aero and body parts, or vehicle specific items are subject to a 75% restocking fee. No exchange or return will be allowed or accepted without a pre-confirmed RMA # issued by management of Tuned Japan in writing. All internationally (outside Japan) sourced products are automatically considered special order items and will not be eligible for any refund or exchange. For special order items, we will happily exchange parts that do not match with the product which was ordered. Be advised that any refunds submitted or accepted by Tuned Japan is subject to our "payout schedule" which is the last day of each month.
Extended Storage For Orders/Abandonment Policy
When orders are received at our warehouse and ready to ship, we contact the owner promptly to arrange shipping. We are happy to hold orders for up to one month, in an effort to help coordinate shipping dates for our clients. After one month of complimentary storage, fees will be charged. We will make every effort to inform customers that their products are on hold and subject to storage fees, however ultimately it is the client’s responsibility to cooperate and receive their parts promptly. Fee rate is (per month):￥15,000 JPY per bumper box, ￥10,000 JPY per hood,roll cage,exhaust and￥2,000 per small items. After a period of one year, or the point where storage fees exceed the value of the products stored, Tuned Japan retains the option to take ownership of the products to pay off the storage fees due, or alternatively storage fees will continue to accumulate and remain due.
All parts shall remain the property of Tuned Japan until paid in full.
If cancellation of an order is needed, notice of cancellation with a manager of Tuned Japan must be made in writing within 24 hours from the date the order was initiated. This will be granted only at the discretion of Tuned Japan and may not be granted in cases were made-to-order or special order items have already been ordered.
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