{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"6c5d56b227ec","name":"YAMAHA YZF 450 2003 - 2009 WRF 450 2003 - 2015 STEEL EXHAUST VALVE  CONVERSION KIT","sku":"PROX.28-SES2424-1","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. Made by leading OEM factories in Japan, this is a direct and cost-efficient OEM replacement. Features a high tech Ti3al alloy forged in one-piece for extra strength, offering superior material properties at high temperatures.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yfz-450-quad-all-models-2003-2019-steel-exhaust-valve-conversion-kit-9003-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yfz-450-quad-all-models-2003-2019-steel-exhaust-valve-conversion-kit-9003-p.jpg"],"description":"Steel exhaust valve conversion kit manufactured of premium grade steel to exact OEM specifications and tolerances. Made by leading OEM factories in Japan, this is a direct and cost-efficient OEM replacement. Features a high tech Ti3al alloy forged in one-piece for extra strength, offering superior material properties at high temperatures.","descriptionMarkdown":"### ProX Steel Exhaust Valve Conversion Kit\n\nUpgrade your engine reliability with the ProX Steel Exhaust Valve Conversion Kit. Designed as a direct and cost-efficient replacement for your original components, this kit provides a robust alternative to standard titanium setups. By switching to high-quality steel, riders often experience increased longevity and reduced maintenance intervals during high-performance operation.\n\nEach valve is manufactured in leading Japanese OEM factories, ensuring that every piece meets or exceeds strict original equipment specifications and tolerances. Engineered for durability, these valves are built to withstand the intense thermal stresses and mechanical pressures associated with high-output engine performance.\n\n### Key Features\n\n \n- Premium Materials: Manufactured from high-grade steel for superior strength and long-term durability.\n \n- OEM Standards: Produced in top-tier Japanese factories to ensure precise fitment and exact performance tolerances.\n \n- Cost-Efficient Upgrade: Offers a reliable, high-value alternative to standard factory titanium valves without compromising on quality.\n \n- Engineered for Reliability: Designed to maintain consistent performance under demanding engine conditions.\n \n- Direct Replacement: Engineered to integrate seamlessly into your cylinder head for straightforward installation.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/yamaha-yzf-450-2003-2009-wrf-450-2003-2015-steel-exhaust-valve-conversion-kit","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/6c5d56b227ec:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/6c5d56b227ec: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."]}}