{"product_id":"post-maf-hose-kit-red-2015-21-subaru-wrx","title":"GrimmSpeed Post-MAF Hose Kit - Red - 2015-21 Subaru WRX GRM125023.2","description":"\u003ch2 data-mce-fragment=\"1\"\u003e\u003cspan lang=\"EN\" data-mce-fragment=\"1\"\u003eLess turbulent air means better flow. Increased flow equals more power!\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003eOur post MAF hose construction improves on OE with 2 main features:\u003c\/p\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003eFirst is the smooth inner surface, removing the pockets from the OE structural corrugated folds. The GrimmSpeed Post MAF Hoses are comprised of 4-ply silicone and unlike our competitor's offerings, are reinforced with an internal stainless steel wire running the length of each piece. This makes our hoses sufficiently flexible and also allows them to retain strong structural properties for a design that maximizes flow, is very easy to install and won't collapse under vacuum.\u003c\/p\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003eThe second feature are tapered end portions, making sure the inner diameter matches the OEM air box and turbo inlet. A mis-matched diameter creates steps, which will interrupt the air flow trajectories and create small vortexes in the post MAF hoses. Our variants are designed specifically to prevent these issues.\u003c\/p\u003e\n\u003ch3 class=\"null\" data-mce-fragment=\"1\"\u003eMETHODOLOGY:\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe first step in improving on an existing part is to find its shortcomings. The OEM rubber hoses require sharper angels and corrugated structural folds as part of their design. This contributes to uneven airflow through the hose with high and low pressure spots. The GrimmSpeed Hose design supports a minimal curve transition and is perfectly smooth inside, resulting in more consistent airflow to the turbo:\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/3165\/2402\/files\/63530daf-fba4-8cbf-2566-06b9f4a3f006_600x600.jpg?v=1706550602\" alt=\"\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/3165\/2402\/files\/63530daf-fba4-8cbf-2566-06b9f4a3f006_600x600.jpg?v=1706550602\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe tapered portion is also an important design choice for contributing to even flow through the hose. A plot comparison showing vorticity (a calculation used for flow disruption) between a non-tapered version and GrimmSpeed’s Tapered Hose shows an additional reduction in turbulence:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/3165\/2402\/files\/b5190c46-1f20-22d0-db0c-7cc257ae91ca_600x600.jpg?v=1706550616\" alt=\"\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/3165\/2402\/files\/b5190c46-1f20-22d0-db0c-7cc257ae91ca_600x600.jpg?v=1706550616\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"null\" data-mce-fragment=\"1\"\u003eQUICK SPECS:\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003e4-Ply Stainless Steel-Reinforced Silicone\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e- Extremely durable, yet flexible; available in red or black\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eOEM Fitment\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e- Easy install, no modification required\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eSeamless Flow\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e- CAD optimized design\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHigh Quality Breeze Hose Clamps -\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003eIncluded in every kit\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eNo Tuning Required\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e- Even when coupled with GrimmSpeed DRY-CON Panel Air Filter for maximum performance\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eGrimmSpeed Logo to Represent your Favorite Brand!\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003cspan lang=\"EN\" data-mce-fragment=\"1\"\u003eFITMENT:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan lang=\"EN\" data-mce-fragment=\"1\"\u003e2015-21 Subaru WRX\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003cspan lang=\"EN\" data-mce-fragment=\"1\"\u003eINSTALLATION:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/3165\/2402\/files\/GrimmSpeed_Post%20MAFHoseKit%E2%80%9315-21WRX_InstallGuide_v2.pdf\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/3165\/2402\/files\/GrimmSpeed_Post%20MAFHoseKit%E2%80%9315-21WRX_InstallGuide_v2.pdf\"\u003eGrimmSpeed Post MAF Hose Kit Install - 15-21 WRX\u003c\/a\u003e\u003c\/p\u003e","brand":"GRIMMSPEED","offers":[{"title":"Default Title","offer_id":42439770603703,"sku":"GRM125023.2","price":182.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/6429\/1511\/files\/Post_MAF_Hose_Kit_15-21_WRX_03_1200px__34746_8b883a57-1450-4b9b-9d66-ecc262422953.jpg?v=1711003185","url":"https:\/\/milkymotorsports.com\/products\/post-maf-hose-kit-red-2015-21-subaru-wrx","provider":"Milky Motorsports","version":"1.0","type":"link"}