{"product_id":"boost-control-solenoid-4-port-thread-1-8-npt","title":"Boost Control Solenoid 4 Port Thread: 1\/8 NPT","description":"\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eHaltech Boost Control Solenoid — 4 Port, 1\/8 NPT (HT-020401)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe four-port solenoid, specified when you need control over a wider range of boost pressure than a three-port can deliver. Running 33Hz PWM off any Haltech ECU output.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eFour ports give the ECU authority over both sides of the wastegate diaphragm with a dedicated vent path, which is what lets you hold the gate closed well above spring pressure and then bleed it precisely at target. On a big single turbo where spring pressure sits far below where you actually run, that range is the difference between hitting your number and living with whatever the gate gives you.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e1\/8 NPT porting throughout.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eEverything for the install is in the box\u003c\/strong\u003e — four 1\/8 NPT to 5\/16 barb fittings, a brass vent, the DTM2 connector set, an M6 isolated mount, and a mounting bracket with hardware. The isolated mount matters: solenoids buzz, and hard-mounting one to a chassis rail turns the whole car into a speaker.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eOff-road and competition use only.\u003c\/strong\u003e Haltech products are sold for sanctioned off-road and competition non-emissions-controlled vehicles, and it's the installer's responsibility to comply with local and federal regulations.\u003c\/p\u003e","brand":"Street Strip Supply","offers":[{"title":"Default Title","offer_id":47278154481837,"sku":null,"price":155.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/8105\/7197\/files\/HT-020401_00.avif?v=1787171776","url":"https:\/\/streetstripsupply.com\/products\/boost-control-solenoid-4-port-thread-1-8-npt","provider":"Street Strip Supply","version":"1.0","type":"link"}