{"product_id":"damond-motorsports-microsquirt-pi-controller-with-pnp-harness","title":"Damond PI Aux Fuel Controller Kit | Mazdaspeed \u0026 Focus ST\/RS","description":"\u003cp\u003eThe \u003cb\u003eDamond Motorsports PI Aux Fuel Controller Kit with Plug-and-Play Harness\u003c\/b\u003e—powered by the proven Microsquirt platform—is the ultimate, non-invasive way to add tunable port injection to your Mazdaspeed 3, Mazdaspeed 6, Focus ST, Focus RS, or Fiesta ST. \u003cstrong\u003e(This is the EXACT kit we run in our 600whp shop car!)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSay goodbye to tedious wiring diagrams, wire strippers, and soldering irons. Our custom-designed, fully labeled PnP harness makes installation a breeze, taking only a few minutes from start to finish. Power is cleanly sourced via an included add-a-fuse, and installation requires only basic hand tools.\u003c\/p\u003e\n\u003ch2\u003e\u003cb\u003eKey Features \u0026amp; Highlights\u003c\/b\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eEV6 Connectors:\u003c\/b\u003e Pre-wired with four EV6-style fuel injector connectors (the standard used by \u003ca href=\"https:\/\/damondmotorsports.com\/products\/injector-dynamics-fuel-injectors?_pos=1\u0026amp;_psq=injector+dynamics\u0026amp;_psid=0b9167923\u0026amp;_ss=e\" title=\"ID fuel injectors\"\u003eInjector Dynamics\u003c\/a\u003e and most popular aftermarket injectors).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eCustom Damond Spec PnP Harness:\u003c\/b\u003e Designed from the ground up to our exact specifications—labeled, pre-wired, and built specifically for MZR DISI and Ford EcoBoost platforms.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePre-Flashed With Firmware Out-of-the-Box:\u003c\/b\u003e Unlike off-the-shelf Microsquirts that ship without firmware, every Damond controller comes pre-flashed with active firmware before leaving our shop, ready to put a tune on.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDirect USB Tuning Cable Included:\u003c\/b\u003e Includes our custom-built cable that bridges USB straight to the harness's 2.5mm TRS connector—no daisy-chaining multiple adapters just to talk to the ECU like off-the-shelf Microsquirts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDirect-Fit Mounting on Damond Battery Trays:\u003c\/b\u003e Bolt-on compatibility with \u003ca href=\"https:\/\/damondmotorsports.com\/search?filter.p.m.custom.dm_product_category=Battery+Tray\u0026amp;filter.p.vendor=Damond+Motorsports\u0026amp;q=battery+tray\" title=\"DM Battery Trays\"\u003eDamond Motorsports battery trays\u003c\/a\u003e for a clean, OEM-style engine bay setup.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eBase Setup Maps Included:\u003c\/b\u003e Baseline configuration files are available to give your tuner a quick, hassle-free starting point.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cb\u003eSimple, 4-Point Signal \u0026amp; Power Hookup\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eNo tapping into dozens of obscure wires. Beyond plugging in your injectors, the harness only requires four basic connections to get up and running:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e12V Power:\u003c\/b\u003e Cleanly tapped via the included add-a-fuse.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eEngine Ground:\u003c\/b\u003e Critical for signal noise isolation (should be grounded directly to the engine block\/head, not the chassis).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eIgnition Signal:\u003c\/b\u003e Picked up from any single cylinder ignition coil with a PnP, removable harness (cylinder choice does not matter).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eLoad Signal:\u003c\/b\u003e Connects to the MAF sensor on Mazdaspeed platforms, or the MAP sensor on Ford EcoBoost platforms, both with a PnP, removable harness.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cb\u003eBuilt-In Expansion Provision\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eThe breakout harness using a 12-pin Deutsch connector (labeled \"SPARE\") serves as a pre-wired expansion port for future growth. It houses critical dedicated channels—including sensor ground, 5V reference power, flex-fuel signal, and temperature inputs—making it painless to pin in additional sensors or features down the road without modifying the main harness.\u003c\/p\u003e\n\u003ch2\u003e\u003cb\u003eFuture Development \u0026amp; Advanced Capabilities\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Microsquirt platform is packed with untapped potential. While the base kit focuses on rock-solid port injection fuel delivery out of the box, we are actively researching and developing expansions using the integrated expansion port.\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cb\u003eNote:\u003c\/b\u003e The potential capabilities below are in testing\/development. Unlocking these features in the future will require tune updates, additional sensors pinned into the expansion connector, and an experienced tuner.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eClosed-Loop Fueling:\u003c\/b\u003e Real-time wideband feedback to dynamically adjust port injector pulse widths and maintain target air-fuel ratios under load.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFlex-Fuel Integration:\u003c\/b\u003e Ethanol content sensor input to automatically scale secondary fueling based on your exact E85 blend.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eElectronic Boost Control:\u003c\/b\u003e Utilizing the controller to manage boost output directly alongside secondary fuel delivery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eAuxiliary Fuel Pump Actuation:\u003c\/b\u003e Triggering external inline or surge tank fuel pumps dynamically based on load, boost, or RPM thresholds.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFuel Pressure Monitoring:\u003c\/b\u003e Tracking secondary rail fuel pressure in real time to fine-tune injection and protect against pressure drops.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eLean-Condition Failsafe Protection:\u003c\/b\u003e Leveraging closed-loop monitoring and fuel pressure tracking to cut power to the boost solenoid if a lean condition or fuel pressure drop occurs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eReady to unlock your platform's full fueling potential?\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eStop letting the factory direct-injection system hold back your horsepower goals. Upgrade to the \u003cb\u003eDamond PI Aux Fuel Controller Kit\u003c\/b\u003e today and give your tuner the seamless, reliable port-injection management your build deserves.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCurrent vehicle fitment:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e\u003cstrong\u003eMazda: \u003c\/strong\u003e\u003cbr\u003eMazdaspeed3 (all years)\u003cbr\u003eMazdaspeed6\u003cbr\u003eCX-7\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFord (awaiting tester feedback):\u003c\/strong\u003e\u003cbr\u003eFocus ST\u003cbr\u003eFocus RS\u003cbr\u003eFiesta ST\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFree US shipping! Current into pricing for a limited time! \u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eTuning:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0420\/1017\/files\/TUNER_STUDIO_INSTALL_AND_SETUP.pdf?v=1786210664\" title=\"Microsquirt setup\" style=\"color: rgb(43, 0, 255);\"\u003eMicrosquirt Setup \u0026amp; Map Flashing Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0420\/1017\/files\/MazdaspeedBase_Gas.msq?v=1786210942\" title=\"Base map for Microsquirt with Mazdaspeed\"\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eMicrosquirt Mazdaspeed Base Map\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0420\/1017\/files\/Mazdaspeed_INJ_Test_1.msq?v=1786211099\" title=\"injector test map\"\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eMicrosquirt Injector Test Map\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Damond Motorsports","offers":[{"title":"MAZDA","offer_id":49622377267427,"sku":"DMMSAUXKITMAZ","price":625.0,"currency_code":"USD","in_stock":true},{"title":"FORD","offer_id":49622377300195,"sku":"DMMSAUXKITFOR","price":625.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/7711\/6131\/files\/DSC08286.jpg?v=1787866651","url":"https:\/\/www.ayrespeedworks.com\/products\/damond-motorsports-microsquirt-pi-controller-with-pnp-harness","provider":"AyreSpeedworks, LLC","version":"1.0","type":"link"}