GM gen 4 LS3 mass air flow sensor (MAF)

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- 08/30/2025
  
  MAF
  
  Very nice quality part Very durable and attractive to the eyes.
  
  Reggie
- 07/28/2025
  
  Very well made product and it looks great
  
  Very well made and delivery wasn't too to bad
  
  Reggie
- 07/02/2023
  
  Fleetwood Swap
  
  PSI Conversion products and Harnesses are top notch.. They make an LS Swap easy.. And Clean!
  
  Jim Johnson
- 12/26/2022
  
  Just as expected.
  
  All of PSI's products are first class and problem free. I won't anyone else on my projects.
  
  Joe G
- 12/22/2022
  
  GM LS3 Mass Air Flow Sensor (Maf)
  
  This GM LS3 Mass Air Flow Sensor (Maf) is working as Advertised with no problems.
  
  Mr., Rusty
- 03/31/2022
  
  Tech fixed our MAF issue
  
  We were given the wrong MAF sensor from the salvage yard and PSI tech was able to identify very quickly and set us up with the fixes needed to make it work with no issues
  
  Mikey
Applications

Looking for an Affordable, In Stock, Plug and Play wiring harness for your LS Swap? PSI sells Standalone Wiring Harnesses for GM Gen II, III, IV, & V LS/LT based engines and transmissions. These harnesses include the Gen II LT1/LT4, Gen III (24x) LS1/LS6 and Vortec Truck Engines as well as Gen IV (58x) LS2, LS3, LS7, & Vortec and GEN V LT / ECOTEC3 Engines. All PSI Harnesses are Made in the USA and are 100% Computer Quality Tested. In addition to wiring harnesses, PSI carries Holley Products, Vintage Air A/C, Dakota Digital Gauges, HPTuners and PCM programming, Fuel Pump Kits, Engine Sensors, Extension Harnesses, Replacement GM connector pigtails and a complete line of hardware to complete your conversion!

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GM gen 4 LS3 mass air flow sensor (MAF)

GM gen 4 LS3 mass air flow sensor (MAF)

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