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Connectors-> (22)
MegaSquirt ECUs
MS Parts & Accessories-> (3)
Sensors (3)
Tools (2)
Wiring Products-> (7)
Wiring Supplies (4)
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Repair/Upgrade Services (2)
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Holley TBI Injector Connector
Holley TBI Injector Connector
$5.00
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Welcome to RS Autosport
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RS Autosport:  Your one-stop shop for MegaSquirt EFI.

The MegaSquirt project is an open-source venture by Bruce Bowling and Al Grippo, who have succeeded in putting do-it-yourself programmable engine management in the hands of the layperson. RS Autosport is here to bring you the best products available for your MegaSquirt installation. Top-notch quality pre-assembled and tested MegaSquirt ECUs, text-stamped wiring harnesses, connectors, sensors... we have what you need. We'll do the assembly and testing... the rest of the fun is up to you!

All of our products come standard with a limited lifetime warranty. (click here for details)
New Products For January
Super420A MS2 Upgrade Kit
Super420A MS2 Upgrade Kit
$175.00
Ignition Module Upgrade Kit (VB921 Alternative)
Ignition Module Upgrade Kit (VB921 Alternative)
$10.00
Upgrade from VB921 Modules
Upgrade from VB921 Modules
$20.00
RS Autosport Repair Service
RS Autosport Repair Service
$0.00
$1 Cash for Special Transactions
$1 Cash for Special Transactions
$1.00
GM IAC Connector (several applications, see description)
GM IAC Connector (several applications, see description)
$6.00
GM TPS Connector, Weatherpack style
GM TPS Connector, Weatherpack style
$5.00
Holley TBI Injector Connector
Holley TBI Injector Connector
$5.00
Weatherpack Terminal Removal Tool
Weatherpack Terminal Removal Tool
$7.50
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Bestsellers
01.$1 Cash for Special Transactions
02.GM Coolant Temp Sensor, w/ Connector
03.Bosch-style (L-Jet) Fuel Injector Connector
04.GM Intake Air Temp Sensor, w/ Connector
05.SRT-4/Late Neon/Ford SVT Fuel Injector Connector
06.Adhesive-Lined Heat Shrink Tubing, 3/16" x 1.5" L, 15-pack
07.Terminals for Bosch-Style Fuel Injector Connector
08.2-Pin Weatherpack Connector
09.Uninsulated Butt Splice Kit, 18-22 AWG, 15-pack
10.Seal and Terminal for Weatherpack Connector, Female
Reviews more
Ignition Module Upgrade Kit (VB921 Alternative)
I just fixed a two-year-old misfire problem with this kit. I was having issues with my wasted-spark setup on a VW 2.0 ABA engine; every time I started it (even when warm), the car would misfire for a good 5 minutes, requiring extra throttle and sounding horrible until it "warmed up". I am running an 034 Motorsport four-cylinder wasted spark coil which I knew was good. Long story short, I removed the VB921s and associated wiring from the MS mainboard, installed the new RS IGBT kit on a separate coil driver board, wired it up with appropriate gauge wiring, and voila the cars starts and idles on its own every time! I have a feeling that the VB921s were not fully charging the high power coils even at 5ms dwell. Until the plugs warmed up to operating temp, there wasn't enough juice to fire them consistently. The cars runs great with the Fairchild IGBTs at 3.7ms dwell now. An excellent upgrade. ..
5 of 5 Stars!

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