| Classic MegaSquirt 3 ECU with MS3X Expansion | diyautotune.com | 799.99 USD | — | — |
| Classic MegaSquirt 3 ECU V3.57 | diyautotune.com | 724.99 USD | — | — |
| Classic MegaSquirt 2 ECU V3.57 | diyautotune.com | 599.99 USD | — | — |
| Classic MegaSquirt 3 PCB3.0 UnAssembled Kit w/ MapDaddy4 Upgrade | diyautotune.com | 525.95 USD | — | — |
| Classic MegaSquirt 3 PCB3.0 UnAssembled Kit | diyautotune.com | 437.95 USD | — | — |
| Classic MegaSquirt 2 PCB3.0 UnAssembled Kit w/ MapDaddy4 Upgrade | diyautotune.com | 415.95 USD | — | — |
| Classic MegaSquirt 2 PCB3.0 UnAssembled Kit | diyautotune.com | 328.95 USD | — | — |
| MicroSquirt ECU Version 3.0 | diyautotune.com | 324.99 USD | — | — |
| MicroSquirt Module V2.2 | diyautotune.com | 284.99 USD | — | — |
| Classic MegaSquirt Relay Board – Assembled | diyautotune.com | 264.99 USD | — | — |
| Classic MegaSquirt 3 Daughterboard Kit | diyautotune.com | 262.95 USD | — | — |
| GPIO Basic Kit | diyautotune.com | 218.95 USD | — | — |
| PKIT – Classic MegaSquirt 2 PCB3.0 Partial Kit | diyautotune.com | 205.95 USD | — | — |
| PKIT – GPIO Board Partial Kit | diyautotune.com | 157.95 USD | — | — |
| Classic MegaSquirt 3 MS3X Expansion Card & Connector Kit | diyautotune.com | 131.95 USD | — | — |
| 8′ Classic MegaSquirt Wiring Harness - Universal Flying Lead | diyautotune.com | 129.99 USD | — | — |
| 755 Piece Weather Pack Kit | diyautotune.com | 126.95 USD | — | — |
| Classic MegaSquirt PCB3.0 Components Kit | diyautotune.com | 126.95 USD | — | — |
| 8′ MS3X Classic MegaSquirt Wiring Harness - Universal Flying Lead | diyautotune.com | 124.99 USD | — | — |
| Classic MegaSquirt 2 Daughterboard | diyautotune.com | 122.95 USD | — | — |
| Classic MegaSquirt Relay Cable | diyautotune.com | 109.99 USD | — | — |
| DIYAutoTune Premium Tech Support | diyautotune.com | 87.95 USD | — | — |
| MapDaddy 4 Bar MAP Sensor with Barometric Correction | diyautotune.com | 87.95 USD | — | — |
| 460 Piece Weather Pack Kit | diyautotune.com | 87.95 USD | — | — |
| 24″ Classic MegaSquirt MS3X Pigtail Harness | diyautotune.com | 79.99 USD | — | — |
| Ratcheting Crimper for Weather Pack Connectors - 10-12 Gauge | diyautotune.com | 76.95 USD | — | — |
| 8′ MS3X Classic MegaSquirt Wiring Bundle | diyautotune.com | 74.99 USD | — | — |
| MS3 Realtime Clock Module | diyautotune.com | 74.95 USD | — | — |
| RMA Service Fee | diyautotune.com | 65.95 USD | — | — |
| 8′ Classic MegaSquirt Wiring Bundle | diyautotune.com | 64.99 USD | — | — |
| 24″ Classic MegaSquirt Pigtail Harness | diyautotune.com | 59.99 USD | — | — |
| Classic MegaSquirt V3.0 Case | diyautotune.com | 43.95 USD | — | — |
| Classic MegaSquirt GPIO Case | diyautotune.com | 43.95 USD | — | — |
| JimStimX Kit – MS3X Stimulator Expansion Board – Unassembled | diyautotune.com | 43.95 USD | — | — |
| Classic MegaSquirt V3.57 Case | diyautotune.com | 43.95 USD | — | — |
| Zeal Engineering Daughterboard with Dual VR Conditioners | diyautotune.com | 39.95 USD | — | — |
| DIYPNP Upgrade: Sequential Injection Kit | diyautotune.com | 39.95 USD | — | — |
| GPIO Application Kit – EGT Input | diyautotune.com | 35.95 USD | — | — |
| MPX4250AP 2.5 Bar MAP Sensor | diyautotune.com | 35.95 USD | — | — |
| GPIO Application Kit – MegaShift | diyautotune.com | 30.95 USD | — | — |