CS Performance is an industry leader in custom EFI technology. Our state-of-the-art factory uses only ASNU flow benches in our certified ASNU service center. Our flow technicians are experienced mechanics who have been in the industry for over 20 years, so you can feel confident that your fuel injectors are being tested and rebuilt properly.

Our goal since starting this business is to provide top-quality auto parts to customers at a fraction of the price that they are at local auto parts stores. This is what has driven our business to success, and what keeps us going in this increasingly flooded market.

If you have any questions, we are very happy to discuss the products we sell. Please do not hesitate to reach out to us. We will get back to you within one business day at the latest.

All of our sets are flow matched to 3-5% or better (OEM factory standards).

We offer an advanced flow matching service with documentation for

$80 for 1% dynamic flow match with documentation

The percentages are how closely the injectors are flow matched to one another.

Static flow matching involves testing the injectors at 100% duty cycle.

Dynamic is the process of testing and matching the injectors at all duty cycles.

If you would like this service, please send us a message BEFORE PLACING YOUR ORDER.

All orders are shipped out within 1 business day from when payment is received. All orders received by 8:00 a.m. will be shipped out same day.

*FREE* USPS First Class Shipping on all domestic fuel injector set orders

Priority Mail 2-3 day Shipping Available

Priority Mail Express 1-2 day Shipping Available

International Shipping Available

This item is covered by CS Performance Lifetime Warranty. CS Performance remanufactured products are warranted to the original owner only against manufacturing defects in materials and workmanship for the lifetime of the product. If a product covered by this warranty fails due to a manufacturing defect, we will repair or replace the units affected. Only original unaltered and unmodified product and workmanship are covered by this policy. This warranty does not cover damage caused by accident, improper care, negligence, or unsanitary installation conditions. Damage not covered by this warranty may still be repaired for a reasonable rate. All shipping costs and expense incurred will be the sole responsibility of the buyer. CS Performance LLC Holds no liability for any damages caused by improper or careless use of this product. CS Performance cannot be held liable for return packages lost in transit.  All warranty claims must be returned to CS Performance for warranty work. No refunds or credits will be given for warrantied product under any circumstances. All items returned under warranty MUST include original sales receipt, no exceptions. CS Performance reserves the right to make changes, modifications, or improvements to returned warrantied product. Only warrantied product is covered, no other vehicle components, installation fees, or other fees incurred will be covered for any reason.  By purchasing this item, you agree to the aforementioned terms.

We accept Paypal and all major credit cards as payment.

All items must be returned within 60 days of sale and be in the same condition as when shipped.

No returns on sets with advanced 1% flow matching