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All Products

Gen II - Our Gen II kits emulate the operation of the SAIS and ECM will read as Ready/Completed. It also eliminates all trouble codes dealing with the SAIS with the exception of the pressure sensor. Installs at the Air Injection Driver and Air Switching Valves. This is our recommended solution because it is the most comprehensive kit we offer.

Gen I - Our Gen I kits will prevent the SAIS from operating on a cold start and ECM will read as Not Ready/Incomplete. With this unit, all of the SAIS parts/components will need to remain in place for the computer to see continuity to them. Installs at Mass Air Flow sensor and Engine Coolant Temperature sensor. Also, the starter relay wire will need to be run from the bypass module to a terminal inside the fuse box.

Gen II Gen I
  • Covers both mechanical and Electrical SAIS error codes
  • Compatible with Toyota's current ECM Computer flash
  • Compatible with Flex Fuel Modes
  • Clears permanent codes
  • Covers only mechanical SAIS error codes*

*Kit Addons needed for each the following electrical codes: Codes P0418 & P0419 Each Require A Pump Proxy Pack, Codes P0412 & P0415 Each Require Valve Solenoid Pack

*When placing your order online be sure to select your Model/Year/Engine Size on the product page to ensure you receive correct kit

Please note, if there is any damage to the pressure sensors, Kit Addons would be needed for both Gen I and Gen II Kits. Contact us if you have any additional questions (844) 307-7671 or

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2005 - 2007 Wired Bypass Kit w/ PPP
The Hewitt-Tech Wired Combo Kit includes a SAIS Bypass Module, a SAIS Pump Proxy Pack and installation accessories for a professional installation. Click on images for more details!
$313.00 $285.00

Select Your Vehicle, Year, Engine:
3M Super 33+ Vinyl Electrical Tape
SKU: 3M88
3M Scotch Professional Grade Super 33+ Vinyl Electrical Tape 3/4 IN X 66 FT X .0085 IN - Black Tape. This is not the cheap electrical tape you have in your junk drawer! This is the good stuff that won't shrink or leave that nasty gooey mess! Perfect for a

iCarsoft JP V2.0 for Toyota/Lexus and other Japanese Brands
SKU: 653718178457
The iCarsoft JP V2.0 is a multisystem scan tool for Japanese Brands including Toyota, Mazda, Nissan and more. It can read/clear diagnostic trouble codes not only from the engine system but also from others, including ABS, SRS, Transmission on your OBDII.

Pressure Sensor Replacement (PSRW)
PSR with a pigtail connector. Best suited replacing a faulty pressure sensor on the 4.7L vehicles with only one pressure sensor without removing the intake manifold.

Select Your Vehicle, Year, Engine:
Installation Accesory Pack (IAPH)
This Installation Kit includes all the extras needed to make your Wired Bypass Kit look like it was installed by a Pro! Split Wire Loom, 3M Electrical Tape and Zip Ties.

Heat Shrink Tubing (HST1/4")
SKU: HST(1/4)
3M® Polyolefin Heat Shrink Tubing - Black - non-adhesive lined 2:1 Shrink Ratio 1/4" I.D. Shrinks to 1/8" I.D. Perfect for covering 22Awg wire splices and connections for the Wired Bypass Kits!
$1.35 $1.25