Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Air and Fuel› Intake Manifolds and Components
FAST
FAST LSXR 102mm Race Runner Intake Manifold
SKU: F003 146104B
Moderate — 2–4 hours
Overview
Show original supplier description
Part #: 146104B
Constructed from the same advanced polymer material as the original FAST LSX 92mm Intake Manifold, but now in the popular black color, the LSXR offers a host of benefits over aluminum aftermarket intakes, including lighter weight, increased strength and improved heat dissipating characteristics.
Features:
- 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.
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.
Vehicle Symptoms
- Engine feels sluggish on top end
- Throttle response is dull at high RPM
- Noticing power loss after intake mods
- Car runs out of breath above 5000 RPM
- Want more horsepower from LS3 build
Relevant Conversations
- FAST LSXR 102mm intake manifold review
- LS3 intake manifold upgrade for more power
- FAST vs Holley intake manifolds LS3
- 102mm throttle body intake manifold C6
- Will FAST LSXR fit my 2008 Corvette?
- LS3 intake manifold install time and difficulty
- Best intake manifold for LS3 6.2L
- FAST LSXR 102mm Race Runner vs LSXr
- LS3 intake manifold gains without tune
- C6 Corvette intake manifold upgrade forum
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | FAST |
| Part Number | F003 146104B |
Videos
FAST LSXR Intake Manifold Install on 2013 Camaro - Summit Racing
FAST LSXR INTAKE-IS IT WORTH $1000? HOW MUCH HP DOES IT ADD? LSXR VS CHEAP, JUNKYARD TRUCK INTAKE
Dyno Tested: FAST 102mm LSXR Intake Interchangeable Runners
Speed Secrets: FAST LSXR Intake Runner Set Test
Advantages and disadvantages of F.A.S.T LSXR Intake manifold
Fast LSXR 102mm Intake Manifold | What Is It?!
Fast 102 Intake Install!
FAST: LSX Interchangeable Runner Dyno Testing
2015 SEMA Show | FAST GM LS3 102mm Intake Runner Sets
Fast 102 on LS1 (how to)
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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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