This is our free tuning guide for the COPO LS PFI injectors! Add this to your cart and check out like normal, and a download link will be sent to your email.
**Warning: Do not attempt to tune your vehicle if you are not a certified tuner. These tuning guides are for the sole purpose of making your Nostrum High Performance product (COPO LS PFI injectors) function as intended, are not intended for building power for your vehicle build. To optimize power and torque on your vehicle, please go to a certified tuner. Nostrum is not liable for any damages that occur due to tuning errors.**
