{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"331e825e20a7","name":"YAMAHA YZF 450 2010 - 2013 STEEL EXHAUST VALVE  CONVERSION KIT","sku":"PROX.28-SES2440-1","brand":"Prox","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":4,"price":{"amount":202.42,"formatted":"£202.42"},"summary":"Steel exhaust valve conversion kit. Manufactured of premium grade steel to exact OEM specifications and tolerances by leading OEM factories in Japan. A direct and cost-efficient OEM replacement.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yzf-450-2010-2013-steel-exhaust-valve-conversion-kit-11229-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yzf-450-2010-2013-steel-exhaust-valve-conversion-kit-11229-p.jpg"],"description":"Steel exhaust valve conversion kit. Manufactured of premium grade steel to exact OEM specifications and tolerances by leading OEM factories in Japan. A direct and cost-efficient OEM replacement.","descriptionMarkdown":"### ProX Steel Exhaust Valve Conversion Kit\n\nThe ProX Steel Exhaust Valve Conversion Kit provides a reliable and cost-effective alternative to standard OEM components. Engineered to meet or exceed original equipment specifications, this kit is designed for riders seeking enhanced durability and consistent performance in their engine's valve train.\n\nEach component in this kit is manufactured in leading Japanese factories, ensuring precision tolerances and high-quality construction. By transitioning to a steel valve configuration, this kit offers an excellent balance of strength and longevity for demanding riding conditions.\n\n### Key Features\n\n \n- Premium Grade Steel: Manufactured from high-quality steel to exact OEM dimensions for a direct and reliable replacement.\n \n- Increased Durability: Designed to provide superior material properties, particularly under high-temperature engine operating conditions.\n \n- Precision Engineering: Produced in top-tier Japanese OEM facilities to ensure perfect fitment and seamless integration within the cylinder head.\n \n- Reliable Performance: A cost-efficient solution that maintains engine integrity and valve train reliability over extended service intervals.\n\nThis conversion kit is an ideal choice for engine rebuilds or routine maintenance, offering a proven way to restore performance without compromising on build quality.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/yamaha-yzf-450-2010-2013-steel-exhaust-valve-conversion-kit","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/331e825e20a7:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/331e825e20a7:1"}},"market":{"country":"GB","countryName":"United Kingdom","locale":"en-gb","currency":"GBP","exchangeRateFromGbp":1,"pricesIncludeUkVat":true,"checkoutTax":null,"delivery":[{"name":"Standard","description":"Orders £15.00–£59.99 · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":4.99,"formatted":"£4.99"},"free":false,"minimumOrder":{"amount":0,"formatted":"£0.00","gbp":0},"weightGrams":null},{"name":"Standard","description":"Orders £60.00 and up · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":0,"formatted":"£0.00"},"free":true,"minimumOrder":{"amount":60,"formatted":"£60.00","gbp":60},"weightGrams":null}],"storeUrl":"https://www.2brosparts.com"},"navigate":{"start":"https://www.2brosparts.com/api/agent","search":"https://www.2brosparts.com/api/agent/search/GB/{words+joined+with+plus}"},"howToBuy":{"summary":"Build a basket for the shopper and give them one checkout link. Every URL is a plain path (no query string) and a GET. Nothing is stored between calls.","checkoutLinkFormat":"https://www.2brosparts.com/api/agent/checkout/GB/{basketKey}:{quantity},{basketKey}:{quantity}","steps":["1. Find products: follow links in these responses, or fetch https://www.2brosparts.com/api/agent/search/GB/{words+joined+with+plus} (e.g. https://www.2brosparts.com/api/agent/search/GB/brake+pads). Every product has a basketKey.","2. Optional check: https://www.2brosparts.com/api/agent/basket/GB/{basketKey}:{quantity},{basketKey}:{quantity} returns stock, totals per delivery option and the checkout link.","3. Give the shopper the checkout link. Opening it fills their basket with exactly these items (replacing what was there) and opens checkout for United Kingdom. They pay on 2brosparts.com through Stripe."],"noFetchNeeded":"You can write the checkout link yourself from basketKeys and quantities; nothing has to be fetched first. Each product also has links.buyOneNow, a ready link for one unit.","stateless":"Nothing is saved on our side. The items part of the URL is the whole basket: to change it, write the link again with the new list.","itemsFormat":"basketKey:quantity pairs joined by commas, e.g. 04f24aad4d68:2,7c1e9a0b3f2d:1. Quantity defaults to 1. Up to 50 products, 100 each.","country":"GB is the shopper's delivery country. Swap it for theirs (US, DE, FR…) in any URL; currency, tax and delivery follow it.","tips":["Put everything the shopper wants in one link.","Optionally add your name as a last path segment on checkout links (…/checkout/GB/<items>/claude) so the sale is credited to you.","The checkout link is for the shopper's browser. Do not open it yourself.","Signed-in trade account holders see their trade prices at checkout."]}}