{"product_id":"porsche-991-2-carrera-stainless-steel-performance-header","title":"Porsche 991.2 Carrera Stainless Steel Performance Header","description":"The Vektor Performance Porsche 991.2 Carrera Stainless Steel Performance Header is engineered to replace the restrictive factory exhaust manifolds on the 991.2 generation Porsche 911 Carrera models. These headers are crafted from 321 stainless steel, a high-end alloy known for its exceptional heat resistance and strength retention, ensuring durability even under demanding conditions.\n\nThe design features equal-length runners that are carefully packaged to fit within the original factory envelope. The flanges are precision CNC-machined to guarantee perfect flatness and port match accuracy, while their 1\/2-inch thickness prevents warping and ensures a reliable seal, potentially exceeding that of the stock manifolds. This meticulous construction allows for smooth transitions from the exhaust ports to the header runners, minimizing turbulence.\n\nUnique to these headers is the use of an investment-cast collector, rather than a fabricated merge collector. This advanced casting technique allows for complex internal geometry that optimizes exhaust gas flow. The cast collector also provides the necessary strength to support the weight of the turbos and exhaust system. The use of thick-wall tubing, combined with 321 stainless steel's lower thermal conductivity compared to cast iron or regular steel, means more heat is directed to the turbine, potentially reducing turbo spool time and increasing turbine efficiency. This also aids in faster catalytic converter light-off.\n\nAll Vektor Performance headers are proudly made in the USA, utilizing certified American-made tubing and materials. The engineering behind these headers aims to improve upon factory designs without introducing negative compromises, offering a refined performance upgrade for the 991.2 Carrera.","brand":"Vektor","offers":[{"title":"Default Title","offer_id":52664043831608,"sku":"VEKVEK-PH-991.2","price":1980.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687393292.jpg?v=1784332388","url":"https:\/\/store.motormia.co\/products\/porsche-991-2-carrera-stainless-steel-performance-header","provider":"MOTORMIA","version":"1.0","type":"link"}