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⛽ Elevate your fuel game—because your GM deserves the pressure boost it craves!
The TBS 10321 GM TBI 18 psi Brown Fuel Pressure Spring is a high-quality alloy steel replacement spring designed to increase fuel pressure from 11-12psi to 18-19psi in 1986-95 GM TBI motors. It fits OEM regulator cans and supports performance upgrades, requiring a compatible fuel pump for optimal operation. Ideal for a range of classic GM vehicles, this spring delivers reliable, heat-resistant performance for enthusiasts seeking enhanced engine efficiency.
| Asin | B012XJ08NO |
| Best Sellers Rank | #1,027,295 in Automotive (See Top 100 in Automotive) #912 in Automotive Replacement Fuel Injection Pressure Regulators |
| Brand Name | Throttle Body Shop |
| Customer Reviews | 4.5 4.5 out of 5 stars (42) 4.5 out of 5 stars |
| Manufacturer | Throttle Body Shop |
| Material Type | Alloy Steel |
| Part Number | TBS-10321 |
| Temperature Range | 1.2E+2 Degrees Celsius |
| Unit Count | 1 Count |
User
87 to 95 tbi. With up grads. Is a.must have
87 to 95 tbi up grade regulatory to 18psi a.must when you up grade the pump a 96 factory vortec pump. Our a warbor perfomace pump up grade
User
It won't boost your 55# injectors to 72#.
The seller implies on his webpage that this spring boosts most injectors to a flow rate of about #72. The real truth is that you already need to have 65# injectors to reach 72# like he claims. The truth is that most people have #55lb injectors, not the #65 required to boost them to the #72 he implies. This will only boost a set of #55 injectors to 65#, far short of enough to support the 270 horsepower implied on his webpage. He implies this spring avoids the purchase of higher flow injectors. That's false for the large majority of us.
User
Three Stars
Shipping was fast and product worked as hoped
Trustpilot
1 month ago
3 weeks ago