Engine Intake Manifold Archives

LSXr 102mm Cathedral Port Intake Manifold for LS1/2/6

The FAST LSX 102mm Intake Manifold for GM LS1, LS2 and LS6 engines provides bolt-on performance gains w/o any loss in bottom-end drivability.This manifold features our standard design runners for use in mild street-oriented applications.

Modular design allows for fast and easy disassembly
Removable runners allow for porting
Improved throttle body sealing flange and o-ring gasket
High quality polymer materials resist the heat sink effecct of aluminum
Maximizes potential of other engine performance upgrades like cylinder heads
Designed to work with FAST Big Mouth and Big Mouth LT Throttle Bodies
Includes stainless steel bolts, threaded insert throttle body mounts and necessary mounting hardware.

(0 reviews)

$1,117.95 Add to cart

Engine Intake Manifold

LSXr 102mm Cathedral Port Intake Manifold Replacement Lower Shell

This lower shell replaces the lower shell that came with the LSXr 102mm intake manifold for LS1, LS2 and LS6 engines.

Replaces lower shell for cathedral port LS1, LS2 and LS6 engines.
Modular design allows for fast and easy disassembly
Removable runners allow for porting
Improved throttle body sealing flange and o-ring gasket
High quality polymer materials resist the heat sink effecct of aluminum
Maximizes potential of other engine performance upgrades like cylinder heads
Designed to work with FAST Big Mouth and Big Mouth LT Throttle Bodies
Includes stainless steel bolts, threaded insert throttle body mounts and necessary mounting hardware.

(0 reviews)

$415.95 Add to cart

Engine Intake Manifold

LSXr 102mm High HP Rectangle Port Intake Manifold for LS3/L92

The FAST LSX 102mm Intake Manifold for GM LS3/L92 engines provides bolt-on performance gains without any loss in bottom-end drivability. This manifold features our High HP runners for use in modified street/strip oriented applications.

Modular design allows for fast and easy disassembly
Removable runners allow for porting
Improved throttle body sealing flange and o-ring gasket
High quality polymer materials resist the heat sink effecct of aluminum
Maximizes potential of other engine performance upgrades like cylinder heads
Designed to work with FAST Big Mouth and Big Mouth LT Throttle Bodies
Includes stainless steel bolts, threaded insert throttle body mounts and necessary mounting hardware.
High HP runners are shorter and straighter than conventional runners to improve high-RPM HP.
High HP runners make 20+ HP over original LSXr manifold.

(0 reviews)

$1,117.95 Add to cart

Engine Intake Manifold

LSXr 102mm Intake Manifold Replacement Upper Shell

This upper shell replaces the upper shell that came with the LSXr 102mm intake manifold for LS1, LS2, LS3, and LS7.

Includes stainless steel bolts, threaded insert throttle body mounts and necessary mounting hardware.
Modular design allows for fast and easy disassembly
Removable runners allow for porting
Improved throttle body sealing flange and o-ring gasket
High quality polymer materials resist the heat sink effecct of aluminum
Maximizes potential of other engine performance upgrades like cylinder heads
Designed to work with FAST Big Mouth and Big Mouth LT Throttle Bodies

(0 reviews)

$458.95 Add to cart

Engine Intake Manifold

LSXr 102mm Race Rectangle Port Intake Manifold for LS3/L92

The FAST LSX 102mm Intake Manifold for GM LS3/L92 engines provides bolt-on performance gains without any loss in bottom-end drivability. This manifold features our race design runners for use in highly modified track oriented applications.

Modular design allows for fast and easy disassembly
Removable runners allow for porting
Improved throttle body sealing flange and o-ring gasket
High quality polymer materials resist the heat sink effecct of aluminum
Maximizes potential of other engine performance upgrades like cylinder heads
Designed to work with FAST Big Mouth and Big Mouth LT Throttle Bodies
Includes stainless steel bolts, threaded insert throttle body mounts and necessary mounting hardware.

(0 reviews)

$1,159.95 Add to cart

Engine Intake Manifold

LSXr 102mm Raised Rectangle Port Intake Manifold for LS7

The FAST LSX 102mm Intake Manifold for GM LS7 engines provides bolt-on performance gains without any loss in bottom-end drivability.This manifold features our standard design runners for use in mild street-oriented applications.

Modular design allows for fast and easy disassembly
Removable runners allow for porting
Improved throttle body sealing flange and o-ring gasket
High quality polymer materials resist the heat sink effecct of aluminum
Maximizes potential of other engine performance upgrades like cylinder heads
Designed to work with FAST Big Mouth and Big Mouth LT Throttle Bodies
Includes stainless steel bolts, threaded insert throttle body mounts and necessary mounting hardware.

(0 reviews)

$1,217.95 Add to cart

Engine Intake Manifold

LSXr 102mm Raised Rectangle Port Intake Manifold Replacement Lower Shell

This lower shell replaces the lower shell that came with the LSXr 102mm intake manifold for LS7 engines.

Replaces lower shell for raised rectangle port.
Modular design allows for fast and easy disassembly
Removable runners allow for porting
Improved throttle body sealing flange and o-ring gasket
High quality polymer materials resist the heat sink effecct of aluminum
Maximizes potential of other engine performance upgrades like cylinder heads
Designed to work with FAST Big Mouth and Big Mouth LT Throttle Bodies
Includes stainless steel bolts, threaded insert throttle body mounts and necessary mounting hardware.

(0 reviews)

$415.95 Add to cart

Engine Intake Manifold

LSXr 102mm Rectangle Port Intake Manifold for LS3/L92

The FAST LSX 102mm Intake Manifold for GM LS3/L92 engines provides bolt-on performance gains without any loss in bottom-end drivability. This manifold features our standard design runners for use in mild street-oriented applications.

Modular design allows for fast and easy disassembly
Removable runners allow for porting
Improved throttle body sealing flange and o-ring gasket
High quality polymer materials resist the heat sink effecct of aluminum
Maximizes potential of other engine performance upgrades like cylinder heads
Designed to work with FAST Big Mouth and Big Mouth LT Throttle Bodies
Includes stainless steel bolts, threaded insert throttle body mounts and necessary mounting hardware.

(0 reviews)

$1,117.95 Add to cart

Engine Intake Manifold

LSXr 102mm Rectangle Port Intake Manifold Replacement Lower Shell

This lower shell replaces the lower shell that came with the LSXr 102mm intake manifold for LS3/L92 engines.

Modular design allows for fast and easy disassembly
Removable runners allow for porting
Improved throttle body sealing flange and o-ring gasket
High quality polymer materials resist the heat sink effecct of aluminum
Maximizes potential of other engine performance upgrades like cylinder heads
Designed to work with FAST Big Mouth and Big Mouth LT Throttle Bodies
Includes stainless steel bolts, threaded insert throttle body mounts and necessary mounting hardware.

(0 reviews)

$462.95 Add to cart

Engine Intake Manifold

LSXrt 102mm Cathedral Port Intake Manifold for 4.8, 5.3 and 6.0L LS Trucks

The FAST LSX 102mm Intake Manifold for GM 4.8, 5.3 and 6.0 truck engines provides bolt-on performance gains without any loss in bottom-end drivability.This manifold features our standard design runners for use in mild street applications.

Modular design allows for fast and easy disassembly
Removable runners allow for porting
Include integrated nitrous bungs
Permits the use of factory accessories and OEM fuel/emission connections without adjustments or clearance issues.
Designed for use with FAST 102mm Big Mouth Throttle Body
102mm inlet works w/ OEM electronic 78/90mm or aftermarket 90/92mm throttle bodies for high flow and minimal restriction (three-bolt electronic throttle bodies require an adapter)
Advanced polymer material is strong, lightweight and cools intake charge for enhanced power
Big gains in rear-wheel HP yet retains factory fitments and underhood clearance requirements

(0 reviews)

$1,171.95 Add to cart

Engine Intake Manifold

LSXrt 102mm High HP Rectangle Port Intake Manifold for LS3/L92

Building upon the popular LSXrt intake manifold, the new LSXrt gives LS3/L92 engines more plenum volume for all-out racing. The raised throttle body location optimizes the larger, less restrictive High HP runner design, creating more power.

102mm inlet also works w/ OEM electronic 78/90mm or aftermarket 90/92mm throttle bodies for high flow and minimal restriction (three-bolt electronic throttle bodies require an adapter).
Advanced polymer material is strong, lightweight and cools intake charge for enhanced power.
Big gains in rear-wheel HP yet retains factory fitments and under-hood clearance requirements.
Replacement runners can be purchased separately
Designed specifically for rectangle port LS3/L92 engines in car and truck applications where hood clearance is not a concern.
Modular design allows for easy removal and porting of intake runners.
Proprietary precision injected polymer design offers light weight, excellent strength and lower heat soak propensity, especially compared to aluminum designs.
Features integrated nitrous bungs and a bolt-on fit that allows the use of factory truck accessories.
Includes our High HP runners that deliver gains of 30+ HP over standard runners.
Feature larger plenum than the lower profile LSXr High HP intake manifold.