Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
⚠️ California Proposition 65 Warning : Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
GM TBI power up kit. Includes 1/4 thick injector spacer (design may vary), 14psi regulator spring and instructions on modifying your OEM stock TBI base to add enough fuel and air to support up to a 40hp with power adders such as headers, free flow exhaust intake and small cam upgrades. Adds 14hp on a stock 5.7L TBI motor.
I got the TBI power-up kit for my 1988 GM motor. Performance has improved slightly, but it wasn't a huge jump. The mounting holes didn’t align perfectly, which made installation a bit tricky. Overall, it’s decent, but I expected a bit more for the price.
C
Carlos Mendoza
Great boost for my old truck!
I installed the TBS 10203 power-up kit on my 1991 GM truck, and the difference is noticeable. The throttle response is much better, and it feels like I’ve added extra horsepower. The installation was straightforward, and the fit was perfect. Just wish the instructions were a bit clearer!
D
Derek Thompson
Not worth the hassle
I had high hopes for the TBS power-up kit, but it ended up being a letdown. The kit arrived with missing parts, and after I finally got everything together, the motor still runs sluggishly. I wouldn’t recommend this for anyone looking for a reliable boost. Really disappointed.
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Is the shipping free?
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
