{"product_id":"process-west-intake-manifold-street-version-subaru-sti-2004-2021","title":"Process West Intake Manifold Street Version Subaru STI 2004-2021","description":"\u003cp\u003e\u003cstrong\u003eProduct Fitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e2004-2021 Subaru STI\u003c\/p\u003e\n\u003cp\u003eThe Process West Billet Intake Manifold range represents the pinnacle of design, engineering, and performance for Subaru WRX and STI platforms. Born from years of R\u0026amp;D, extensive testing, and countless prototype iterations, this manifold is the result of a no-compromise approach to performance and aesthetics.\u003c\/p\u003e\n\u003cp\u003eCrafted for both street and race applications, the manifold is available in multiple configurations to suit a wide range of Subaru platforms—from MY99 GC8 to the latest WRX and STI models. The modular design allows compatibility with stock throttle bodies or 3” Hypertune billet throttle setups. Custom throttle flanges are also available on request.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFully CNC-Billet Plenum \u0026amp; Bellmouths:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFeatures a high-volume billet plenum and precision-machined bellmouths for optimal airflow and velocity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh Boost-Ready Construction:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBuilt using thick-wall, polished CNC mandrel-bent tubing and TIG-welded to withstand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eup to 100 PSI\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eof boost.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModular Design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAvailable for various Subaru generations and configurations, including stock or Hypertune throttle compatibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptimized for Torque \u0026amp; Top-End Power:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRunner length and plenum volume are engineered for strong low\/mid-range torque while unlocking high-rpm performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRetains A\/C Compatibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDespite the large plenum, the Street version is fully compatible with factory air conditioning systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTested Performance Gains:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eExpect\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e~9% power and torque gains\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eon both stock and heavily modified engines—including those running E85.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStreet or Race Options:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe Street version offers aggressive performance with full drivability. For more high-rpm power, shorter billet TGVs (lower runners) can be supplied.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis intake manifold is not just a performance upgrade—it's a statement piece for serious Subaru builders. When only the best will do, the Process West Billet Intake Manifold delivers strength, flow, and performance that outclass every alternative on the market.\u003c\/p\u003e","brand":"Process West","offers":[{"title":"Default Title","offer_id":52123798176108,"sku":"PRW-PWIM002","price":2247.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0071\/0095\/6739\/files\/124905049.jpg?v=1750816139","url":"https:\/\/nahmindustries.com\/products\/process-west-intake-manifold-street-version-subaru-sti-2004-2021","provider":"Nahm Industries","version":"1.0","type":"link"}