Shipping Policy
Last updated: June 2026

Scheduled Summer Shipping Update

Our online store will remain open during our scheduled summer shipping pause.

All orders placed from July 19 through August 10, 2026 will ship on August 11, 2026.

Customers are welcome to place orders during this period and will receive an order confirmation at checkout. Tracking information will be provided once the order ships.

Please note that expedited shipping options apply to carrier transit time after shipment and do not change the August 11 ship date.

Standard Shipping Schedule

Under normal operations, orders are processed within 1–2 business days.

Our scheduled shipping days are:

Tuesday
Wednesday
Friday

Available shipping methods include:

USPS First Class 2-7 Day
USPS Priority Mail 2-3 Day
USPS Express Mail 1-2 Day

Delivery times vary depending on the shipping method selected and the customer’s location. Customers will receive tracking information once their order ships.

Returns & Exchanges Policy
Last updated: June 2026

At CS Performance Fuel Injection, customer satisfaction is important to us. We stand behind the quality of our professionally tested and remanufactured OEM fuel injectors.

Returns & Exchanges

We accept returns and exchanges within 30 days of the delivery date (online purchases).

Customers may request a return or exchange for reasons including:

Ordered the wrong item
Need a different injector style or application
Fitment issues
No longer needed
Changed their mind
Product concerns

To start a return or exchange, please contact us:

Email: customercare@csperformancefuelinjectors.com

Please include:

Your order number and date
Name used on the order
Vehicle year, make, model, and engine (if requesting an exchange)
Reason for return or exchange

Exchange Process

If you need a different injector set, we are happy to help find the correct option for your application.

Once the original item is returned and inspected, we can:

Ship a replacement set
Apply the original purchase amount toward a different injector set
Assist with finding the correct replacement option

Additional charges may apply if exchanging for a higher-priced product.

Return Conditions

Returned items must include all injectors and components originally received.

Items that have been:

Physically damaged
Modified
Disassembled
Damaged due to incorrect installation
Excessively dirty

may not qualify for a full refund or exchange.

Advanced Flow Matching Service

Optional 1% advanced flow matching services are customized testing services performed specifically for each customer’s injector set.

The 1% flow matching service fee is non-refundable once completed.

Return Shipping Costs

Customers are responsible for return shipping costs unless the return or exchange is due to an error on our part.

If we shipped the wrong item or there is a verified product issue, we will provide return assistance.

Refund Processing

Once we receive and inspect your returned item, approved refunds will be issued back to the original payment method.

Refunds are typically processed within 5 business days after inspection.

Please allow additional time for your bank or payment provider to post the refund.