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DIYAutoTune Parts and Accessories
Wiring Harness, MegaSquirt MS3X , 8 ft. Length Harnesses, Kit
Part Number: DIY-MSHARNESS
Not Yet Reviewed
Estimated Ship Date: May 5, 2026 if ordered today
Estimated Ship Date: May 5, 2026 if ordered today
ECU
Part Number: DIY-MS3V-E
Not Yet Reviewed
Estimated Ship Date: May 15, 2026 if ordered today
Estimated Ship Date: May 15, 2026 if ordered today
Engine Management System, MegaSquirt Gen2, Plug and Play Harness, Mazda, Miata, Kit
Part Number: DIY-S0013
Estimated Ship Date: May 18, 2026 if ordered today
Estimated Ship Date: May 18, 2026 if ordered today
Wiring Bundle; 8in Long
Part Number: DIY-MS3X-LG-BUND
Not Yet Reviewed
Estimated Ship Date: May 22, 2026 if ordered today
Estimated Ship Date: May 22, 2026 if ordered today
Engine Management System, MegaSquirt MS3Pro EVO, Plug and Play Engine Harness, GM, LS, 24x Reluctor, Multec Injectors, Kit
Part Number: DIY-VE-LS24XM
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Engine Management System, MegaSquirt Gen2, Plug and Play Harness, Mazda, Miata, Kit
Part Number: DIY-S0015
Not Yet Reviewed
Estimated Ship Date: May 21, 2026 if ordered today
Estimated Ship Date: May 21, 2026 if ordered today
Engine Management System, MegaSquirt MS3Pro EVO, Universal, Kit
Part Number: DIY-3V-EPKG
Not Yet Reviewed
Estimated Ship Date: May 21, 2026 if ordered today
Estimated Ship Date: May 21, 2026 if ordered today
Engine Management System, MegaSquirt Gen2, Plug and Play Harness, Toyota, MR2, Celica, 3SGTE, Kit
Part Number: DIY-S0020
Not Yet Reviewed
Estimated Ship Date: May 21, 2026 if ordered today
Estimated Ship Date: May 21, 2026 if ordered today
Electrical Fuses, Replacement MS3Pro Fuse
Part Number: DIY-0454-500MR
Not Yet Reviewed
Estimated Ship Date: May 15, 2026 if ordered today
Estimated Ship Date: May 15, 2026 if ordered today
MS3PRO WIRING HARNESS
Part Number: DIY-MS3V-U-HRN
Not Yet Reviewed
Estimated Ship Date: May 5, 2026 if ordered today
Estimated Ship Date: May 5, 2026 if ordered today
EFI MAXSpark IGN1A Ignition Kit for GM LS Engines
Part Number: DIY-S0046
Not Yet Reviewed
Estimated Ship Date: May 6, 2026 if ordered today
Estimated Ship Date: May 6, 2026 if ordered today
Engine Management System, MegaSquirt MS3Pro Ultimate, Universal, Kit
Part Number: DIY-V-U-PKG
Not Yet Reviewed
Estimated Ship Date: May 21, 2026 if ordered today
Estimated Ship Date: May 21, 2026 if ordered today
Engine Management System, MegaSquirt MS3Pro EVO, Plug and Play Engine Harness, GM, LS, 24x Reluctor, EV1 Injectors, Kit
Part Number: DIY-S0022
Not Yet Reviewed
Estimated Ship Date: May 21, 2026 if ordered today
Estimated Ship Date: May 21, 2026 if ordered today
Engine Management System, MegaSquirt MS3Pro Ultimate, Plug and Play Engine Harness, GM, LS, 58x Reluctor, Multec Injectors, Kit
Part Number: DIY-VU-LS58XM
Not Yet Reviewed
Estimated Ship Date: May 21, 2026 if ordered today
Estimated Ship Date: May 21, 2026 if ordered today
MS3PRO ULT CTR HARNESS
Part Number: DIY-MS3V-3-HB
Not Yet Reviewed
Estimated Ship Date: May 6, 2026 if ordered today
Estimated Ship Date: May 6, 2026 if ordered today
Engine Management System Components, MS3Pro LS Plug and Play Harness Alternator Lead Extension
Part Number: DIY-PH-LSALT
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Engine Management System, MegaSquirt MS3Pro EVO, Plug and Play Engine Harness, GM, LS, 24x Reluctor, EV6 Injectors, Kit
Part Number: DIY-S0023
Not Yet Reviewed
Estimated Ship Date: May 21, 2026 if ordered today
Estimated Ship Date: May 21, 2026 if ordered today
PLUG AND PLAY ECU
Part Number: DIY-NS8994
Not Yet Reviewed
Estimated Ship Date: May 21, 2026 if ordered today
Estimated Ship Date: May 21, 2026 if ordered today
Engine Management System, MegaSquirt MS3Pro, Plug and Play Harness, Mazda, Miata, Kit
Part Number: DIY-S0004
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Engine Management System, MegaSquirt MS3Pro, Plug and Play Harness, Toyota, Lexus, Supra, SC300, 2JZ, Kit
Part Number: DIY-S0008
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Engine Management System, MS3Pro PNP, Factory Dash Control, Ford, Kit
Part Number: DIY-S0037
Not Yet Reviewed
Estimated Ship Date: May 18, 2026 if ordered today
Estimated Ship Date: May 18, 2026 if ordered today
MEGASHIFT GPIO ADD-ON KIT
Part Number: DIY-GPMK-SHIFT
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
ECU
Part Number: DIY-S0045
Not Yet Reviewed
Estimated Ship Date: May 6, 2026 if ordered today
Estimated Ship Date: May 6, 2026 if ordered today
Engine Management System, MegaSquirt MS3Pro, Plug and Play Harness, Subaru, Impreza, WRX, Kit
Part Number: DIY-S0009
Not Yet Reviewed
Engine Management System, MegaSquirt MS3Pro, Plug and Play Harness, Mazda, Miata, Kit
Part Number: DIY-S0005
Not Yet Reviewed
Estimated Ship Date: May 21, 2026 if ordered today
Estimated Ship Date: May 21, 2026 if ordered today
