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Air and Fuel› Fuel Injection Systems and Components - Electronic

ISR

550cc Side Feed Injectors

$462.00 $420.99 Save $41.01

SKU: IS-INJS-550-4

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In Stock
Ships by Aug 3
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Designed as direct drop-in replacements, these injectors are perfect for SR/KA engine applications. Constructed with stainless steel internals, these injectors are compatible with E85 fuel. They are sold in balanced sets, ensuring a flow variation within 2% across transitional, low, and linear ranges of pulse widths, which contributes to consistent engine performance. Each set includes four 550cc side feed injectors, necessary injector o-rings, and a flow data sheet for reference.

MIA's Description

The ISR Performance Side Feed Injectors are a set of four 550cc direct-fit replacement injectors for Nissan vehicles. These injectors are designed for SR/KA applications and feature stainless steel internals for E85 compatibility. They are sold in balanced sets with a flow variation within 2%.

Fitment

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Specifications

BrandISR
Part NumberIS-INJS-550-4
CategoryAir and Fuel

Buy with Confidence

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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