{"product_id":"the-killer-b-motorsport-belly-pan-spacer-kit-for-fa20-header-copy","title":"The Killer B Motorsport Belly Pan Spacer Kit For FA20 Header (Copy)","description":"\u003cp\u003e 2004-2021 STi, 2002-2014 WRX, 2004-2013 Forester XT, 2004-2009 Outback XT, 2004-2009 Legacy GT\u003c\/p\u003e\n\u003cp\u003eKiller B Motorsport 321 Stainless Holy Header\/Up-Pipe\u003cbr\u003eThe Killer B Motorsport Holy Header was developed using state of the art CAD software \u0026amp; simulations to determine optimal design to increase power as much as possible throughout the rev range. Short as possible primaries with a single secondary decrease header volume significantly, allowing exhaust gas pressure to quickly build. Symmetrical 4-1 design maintains high and consistent exhaust velocity as RPMs rise. You can expect faster spool up time compared to long primary\/double secondary designs. A difference that you will immediately notice in throttle\/boost response and the ability to hold more power higher into the revs.\u003c\/p\u003e","brand":"Killer B","offers":[{"title":"Default Title","offer_id":68088261214530,"sku":"HH4-1","price":1985.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/9294\/3170\/files\/HH4-1_KillerBMotorsport321StainlessHolyHeader-Up-Pipe_None_None_523c6fd1-1575-4829-b052-0a33c7f83fbe.webp?v=1794232867","url":"https:\/\/autospecdesign.com\/products\/the-killer-b-motorsport-belly-pan-spacer-kit-for-fa20-header-copy","provider":"AutoSpec Design","version":"1.0","type":"link"}