Fitment and Product Information. TBI Fuel Regulator Kit. Brandname: Jet Performance Products Part Number: 61510. Jet Performance contains a billet adjustable fuel pressure regulator, all gaskets necessary and a heavy duty replacement diaphram. The fuel pressure regulator will allow for precise tuning of fuel pressure and will restore lost performance due to a warm out stock regulator. WARNING : This product can expose you to chemicals including Styrene, which is known to the State of California to cause cancer.