{"product_id":"4-1-stainless-steel-headers-1-5-8-runners","title":"4-1 Stainless Steel Headers 1 5\/8\" Runners","description":"The PPE Engineering stainless steel headers are engineered for the 1998-2000 Lexus LS400, offering a performance upgrade with a 4-1 design. These headers utilize 1 5\/8\" diameter runners that smoothly transition to a 2.5\" outlet collector. Constructed from 100% 304 stainless steel, they are built for durability and corrosion resistance.\n\nWhile designed as a bolt-on installation, these headers are longer than the stock manifolds and are NOT a direct fit to the stock catalytic converters. Modifications to your stock catalytic converters, the use of high-flow cats, or the fabrication of test pipes will be required for proper fitment. Matching flanges for exhaust modification are available separately.\n\nThese headers are rated to provide power gains of 18-20 whp and over 20 ft-lb of torque. Optional ceramic coating is available to help reduce engine bay temperatures and maintain the headers' appearance over time.","brand":"PPE Engineering","offers":[{"title":"Default Title","offer_id":52663321985336,"sku":"1140005-SS","price":1595.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687527868.jpg?v=1784325934","url":"https:\/\/store.motormia.co\/products\/4-1-stainless-steel-headers-1-5-8-runners","provider":"MOTORMIA","version":"1.0","type":"link"}