ISR Performance - Top Feed Injectors - 1200cc- (set of 4)

This set of four ISR Performance 1200cc top feed injectors is built for high horsepower four cylinder engines, typically an SR20DET or KA24DE-T running E85 or chasing big boost on a larger turbo. At this flow level you are well past what a street tune needs on pump gas, so these make the most sense for cars that already have the turbo, fuel pump and engine management to use them.

Specs at a glance

• 1200cc flow rate
• High impedance coil
• 48mm height
• 14mm o-rings top and bottom
• Jetronic connector
• E85 compatible stainless steel internals

Why matched sets matter

Large injectors are the hardest to keep consistent at small pulse widths. ISR flow tests each set and only sells them balanced to within 2% across the transitional, low and linear ranges, and the flow data sheet ships in the box so the numbers are on hand when you tune.

Fitment

Universal 48mm top feed injector with 14mm upper and lower o-rings. Designed to pair with the ISR fuel rail and intake manifold combination for SR applications, and usable in other rails with the same injector spec.

Included

• 4x 1200cc top feed injectors
• Injector o-rings
• Injector flow data sheet

Before you order

No pigtails or connectors are included. The 1200cc injectors use a Jetronic plug, so plan on four ISR Jetronic pigtails if your harness is wired for a different connector.

All ISR Performance products are designed for off-road use only.