- Fuel Injection Systems
- Speedmaster Downdraft EFI Stack Intake Manifold Systems
EFI Performance Intakes
Speedmaster's Downdraft EFI Stack Intake Manifold Systems are designed to provide exceptional EFI tuning and versatile engine performance. These intake systems deliver crisp EFI performance in up to 1000 hp applications. Precision cast aluminum 50mm IDA-style throttle bodies supply sufficient fuel and air to provide superior idle characteristics and throttle response. Improve your vehicle's emissions and air/fuel ratio economy with a downdraft EFI stack intake manifold system from Speedmaster!
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Ford
Speedmaster 1-148-009
Speedmaster Downdraft EFI Stack Intake Manifold - Big Block Ford 460 Fuel Injected - Black
Downdraft EFI Stack Intake ManifoldBig Block Ford 460 Fuel Injected Non-EGR Idle-7000 RPM Includes Intake Trumpets and Fuel Rails Aluminum Casting Black Finish 8-Piece Set
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$2,450.00
Ships Monday
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Speedmaster 1-148-008
Speedmaster Downdraft EFI Stack Intake Manifold - Big Block Ford 460 Fuel Injected
Downdraft EFI Stack Intake ManifoldBig Block Ford 460 Fuel Injected Non-EGR Idle-7000 RPM Includes Intake Trumpets and Fuel Rails Aluminum Casting Polished Finish 8-Piece Set
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$2,450.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Speedmaster 1-148-010
Speedmaster Downdraft EFI Stack Intake Manifold - Ford FE 390/427/428 Fuel Injected
Downdraft EFI Stack Intake ManifoldFord FE 390/427/428 Fuel Injected Non-EGR Idle-7000 RPM Includes Intake Trumpets and Fuel Rails Aluminum Casting Polished Finish 8-Piece Set
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$2,450.00
(1)
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Speedmaster 1-148-010-02
Speedmaster 1-148-010-02 Downdraft EFI Stack Intake Manifold System Complete for Ford FE 390, 427, 428 [Black]
Downdraft EFI Stack Intake Manifold System CompleteFord FE 390, 427, 428 Fuel Injected Idle-7,000 RPM Includes Intake Trumpets and Fuel Rails Aluminum Casting Black Finish Set of 8
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$2,450.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Speedmaster 1-148-011
Speedmaster Downdraft EFI Stack Intake Manifold - Small Block Ford 260, 289, 302W Fuel Injected
Downdraft EFI Stack Intake ManifoldSmall Block Ford 260, 289, 302W Fuel Injected Non-EGR Idle-7000 RPM Includes Intake Trumpets and Fuel Rails Aluminum Casting Polished Finish 8-Piece Set
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$2,450.00
(3)
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Speedmaster 1-148-015
Speedmaster Downdraft EFI Stack Intake Manifold - Small Block Ford 260, 289, 302W Fuel Injected - Black
Downdraft EFI Stack Intake ManifoldSmall Block Ford 260, 289, 302W Fuel Injected Non-EGR Idle-7000 RPM Includes Intake Trumpets and Fuel Rails Aluminum Casting Black Finish
View Details
$2,450.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Speedmaster 1-148-016
Speedmaster Downdraft EFI Stack Intake Manifold - Small Block Ford 260, 289, 302W Fuel Injected - Satin
Downdraft EFI Stack Intake ManifoldSmall Block Ford 260, 289, 302W Fuel Injected Non-EGR Idle-7000 RPM Includes Intake Trumpets and Fuel Rails Aluminum Casting Satin Finish
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$2,320.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Speedmaster PCE148.1081K
Speedmaster Complete Downdraft EFI Stack Intake Manifold System Kit Big Block Ford 460
Complete Downdraft EFI Stack Intake Manifold System KitBig Block Ford 460 Idle-7,000 rpm Includes Intake Trumpets and Fuel Rails Unassembled Aluminum Casting Black Finish 8-Peice Set
Includes: FAST Engine Control System
Includes:
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$3,574.94
(2)
Estimated to ship direct from manufacturer on 02/05/25, pending manufacturer availability.
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Speedmaster PCE148.1053
Speedmaster Downdraft EFI Stack Intake Manifold Ford 302/351C [Satin Finish]
Downdraft EFI Stack Intake ManifoldFord 302/351C Idle-7,000 RPM Range Non-EGR Aluminum Satin Finish
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$1,630.00
Estimated to ship direct from manufacturer on 02/05/25, pending manufacturer availability.
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Speedmaster 1-135-005-02
Speedmaster 1-135-005-02 Ford 351W Windsor Downdraft & FiTech Ultra EFI Fuel Injection System [Polished]
$3,894.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Speedmaster 1-135-006-02
Speedmaster 1-135-006-02 Ford 351W Windsor Sidedraft & FiTech Ultra EFI Fuel Injection System [Polished]
$3,894.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Speedmaster 1-135-007-02
Speedmaster 1-135-007-02 Ford BB 460 Downdraft & FiTech Ultra EFI Fuel Injection System [Polished]
$3,894.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Speedmaster 1-135-008-02
Speedmaster 1-135-008-02 Ford FE 390 427 428 Downdraft & FiTech Ultra EFI Fuel Injection System [Polished]
$3,894.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Speedmaster 1-135-009-02
Speedmaster 1-135-009-02 Ford SB 289 302W Downdraft & FiTech Ultra EFI Fuel Injection System [Polished]
$3,894.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Speedmaster 1-135-011-02
Speedmaster 1-135-011-02 Ford BB 460 Downdraft & FiTech Ultra EFI Fuel Injection System [Black]
$3,894.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Speedmaster 1-135-013-02
Speedmaster 1-135-013-02 Ford SB 260 289 302W Downdraft & FiTech Ultra EFI Fuel Injection System [Satin]
$3,894.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Speedmaster 1-135-018-02
Speedmaster 1-135-018-02 Ford 351W Windsor Downdraft & FiTech Ultra EFI Fuel Injection System [Satin]
$3,894.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Speedmaster 1-135-019-02 Ford 351W Windsor Downdraft& FiTech Ultra EFI Fuel Injection System [Black]
Speedmaster 1-135-019-02
Speedmaster 1-135-019-02 Ford 351W Windsor Downdraft& FiTech Ultra EFI Fuel Injection System [Black]
$3,894.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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GM
Speedmaster 1-148-042-02
Speedmaster Complete Downdraft EFI Stack Intake Manifold System [Chevy LS1 Fuel Injected] Polished
Complete Downdraft EFI Stack Intake Manifold SystemChevy LS1 Fuel Injected Non-EGR Idle-7000 RPM Includes Intake Trumpets and Fuel Rails Unassembled Aluminum Casting Polished Finish 8-Piece Set
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$2,450.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Downdraft EFI Stack Intake ManifoldChevy LS3 Fuel Injected Non-EGR Idle-7000 RPM Includes Intake Trumpets and Fuel Rails Aluminum Casting Polished Finish 8-Piece Set
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$2,450.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Complete LS3 Downdraft EFI Stack Intake Manifold System Kit
Includes:Complete Downdraft EFI Stack Intake Manifold System MAP Sensor Air Temp Sensor EZ-EFI Engine Control Kit TPS Sensor IAC Valve Adapter Fuel Injectors
Includes:
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$4,410.95
Estimated to ship direct from manufacturer on 03/07/25, pending manufacturer availability.
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Speedmaster PCE148.1055
Speedmaster PCE148.1055 Chevy LS7 Side Draft EFI Stack Intake Manifold System Complete [Satin]
Chevy LS7 Side Draft EFI Stack Intake Manifold SystemComplete Basic Operating RPM Range: 3,000-10,000 Fuel Rails Included Satin Finish
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$2,480.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Speedmaster 1-135-001-02 Chevy BBC 454 Downdraft & FiTech Ultra EFI Fuel Injection System [Polished]
Speedmaster 1-135-001-02
Speedmaster 1-135-001-02 Chevy BBC 454 Downdraft & FiTech Ultra EFI Fuel Injection System [Polished]
$3,894.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Speedmaster 1-135-002-02
Speedmaster 1-135-002-02 Chevy GM LS3 Downdraft & FiTech Ultra EFI Fuel Injection System [Polished]
$3,894.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Speedmaster 1-135-003-02 Chevy SBC 350 Downdraft & FiTech Ultra EFI Fuel Injection System [Polished]
Speedmaster 1-135-003-02
Speedmaster 1-135-003-02 Chevy SBC 350 Downdraft & FiTech Ultra EFI Fuel Injection System [Polished]
$3,894.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Speedmaster 1-135-010-02
Speedmaster 1-135-010-02 Chevy SBC 350 Downdraft & FiTech Ultra EFI Fuel Injection System [Black]
$3,894.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Speedmaster 1-135-014-02
Speedmaster 1-135-014-02 Chevy SBC 350 Downdraft & FiTech Ultra EFI Fuel Injection System [Satin]
$3,894.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Speedmaster 1-135-015-02
Speedmaster 1-135-015-02 Chevy GM LS1 Downdraft & FiTech Ultra EFI Fuel Injection System [Black]
$3,894.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
FREE Shipping
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Speedmaster 1-135-016-02
Speedmaster 1-135-016-02 Chevy GM LS1 Downdraft & FiTech Ultra EFI Fuel Injection System [Polished]
$3,894.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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Speedmaster 1-135-017-02
Speedmaster 1-135-017-02 Chevy BBC 454 Downdraft & FiTech Ultra EFI Fuel Injection System [Satin]
$3,894.00
Estimated to ship direct from manufacturer on 01/28/25, pending manufacturer availability.
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