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Air and Fuel› Fuel Pumps, Regulators and Components

CJM

S1.E Fuel Return System with Fuel Pressure Gauge

$876.95 $799.95 Save $77.00

SKU: CJM-S1.E

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The CJ Motorsports S1.E is a fuel return system designed for Nissan 370Z, Infiniti G37, and 3.7L Q50 models. This system is critical for turbocharged, supercharged, or race fuel applications. It includes a fuel pressure gauge and a 10mm microglass filter optimized for high-flow fuel pumps like the Walbro 450, 485, and 525.

The S1.E system bypasses the stock fuel filter housing, routing fuel directly from the pump module's top hat through a PTFE hose and an -6AN bulkhead fitting.
Show original supplier description
The CJ Motorsports S1.E Fuel Return System is a high-performance upgrade for the Nissan 370Z, Infiniti G37, and 3.7L Q50. This system is essential for vehicles equipped with turbochargers or superchargers, as well as those running race fuels like VP M5, ensuring stable fuel pressure and delivery. Engineered for demanding applications, the S1.E system bypasses the factory fuel filter housing. Fuel is directed from the fuel pump module's top hat through a PTFE hose to an -6AN bulkhead fitting. This design ensures optimal fuel flow and reliability. The kit comes complete with a fuel pressure gauge and features a 10mm microglass filter. This filter is specifically designed to be compatible with and optimized for larger, high-flow fuel pumps, including popular models such as the Walbro 450, 485, and 525 series. This fuel return system is a critical component for achieving consistent and reliable fuel delivery in high-horsepower and modified VQ37VHR engines. It supports enhanced fuel flow required for significant performance upgrades.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandCJM
Part NumberCJM-S1.E
CategoryAir and Fuel
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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