The Pro-Flo XT LS3 EFI intake manifold is engineered with a large plenum and 6.25" tapered runners to deliver maximum horsepower and a broad torque band from 1500-7000+ rpm. It features a 90mm throttle bore opening that can be ported to 105mm as needed. Machined for use with a stock LS3 style MAP sensor or Edelbrock p/n 350-36019 that is mounted directly to the manifold. The Pro-Flo XT LS3 EFI accepts GM OEM 90mm or Edelbrock p/n 350-3869 / 350-38693 throttle bodies. Compatible with LS3 Fuel Rail Kit p/n 350-3648 (sold separately), which features -08 AN inlet and outlet. Not intended as direct replacement for late-model vehicles due to hood and cowl clearance. In testing, the Pro-Flo XT LS3 intake manifold made 16 horsepower more, and the peak power point also increased by 500 rpm compared to a competitors plastic design. The Pro-Flo XT LS3 intake manifold is the best choice for your boosted or nitrous powered LS3 engine.

• Manifold Dimensions: (A) 9.28", (B) 9.68", (C) 17.40', (D) 3.02', (E) 15°
• Port Exit Height: 1.23" x 2.52'
• Manifold not equipped with EGR.

Installation Notes:

• Uses LS3/ L92/L76 style individual port o-ring seals, GM p/n 809-19256623 or Edelbrock 350-7395.
• Throttle Body Recommendations: Edelbrock #3869/#38693 or OEM drive-by-wire style
• Compatible with Edelbrock LS-Series XT fuel rail kit p/n 350-3648
• Compatible with Pico or standard style injectors

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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