{"product_id":"sill-strengthening-kit-grp5815","title":"Sill Strengthening Kit for Sill Stands — GRP5815","description":"\u003cp\u003eThe \u003cstrong\u003eGRP4 Fabrications Sill Strengthening Kit (GRP5815)\u003c\/strong\u003e is designed to reinforce your vehicle's sill area when using sill stands — providing a solid, safe lifting point and protecting the sill from damage during jacking and stand placement.\u003c\/p\u003e\n\n\u003cp\u003eEssential for any motorsport vehicle regularly lifted on sill stands. Protects the sill structure and ensures a secure, stable contact point every time.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eReinforces sill area for use with sill stands\u003c\/li\u003e\n\u003cli\u003eProtects sill from damage during jacking and stand placement\u003c\/li\u003e\n\u003cli\u003eDesigned for motorsport applications — circuit racing, rally, karting\u003c\/li\u003e\n\u003cli\u003eQuality fabrication from GRP4 Fabrications\u003c\/li\u003e\n\u003cli\u003ePart Number: GRP5815\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Buy From Harris Race Radios?\u003c\/h2\u003e\n\u003cp\u003eHarris Race Radios is NZ and Australia's most experienced motorsport equipment specialist — not just a reseller, but a team of active racing professionals with decades of hands-on experience across both markets.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAaron Harris\u003c\/strong\u003e is an active racing driver and race engineer — Barcelona 24 Hour 1st in Class 2013, Bathurst 1000 and 12 Hour competitor, BMW Race Driver Series Champion 2011, and race engineer for Earl Bamber Motorsport, TekworkX, Matt Stone Racing, and Porsche Carrera Cup Australia, Asia-Pacific and New Zealand. Aaron is also an MSNZ Licence Examiner for helmets, racewear, FHR and HANS.\u003c\/p\u003e\n\u003cp\u003e✅ Expert advice from active racing professionals\u003cbr\u003e\n✅ NZ stock — fast dispatch\u003cbr\u003e\n✅ Ships to Australia\u003cbr\u003e\n✅ Genuine products\u003c\/p\u003e\n\u003cp\u003e📞 Aaron Harris: \u003ca href=\"tel:+64274499654\"\u003e+64 27 449 9654\u003c\/a\u003e\u003cbr\u003e\n📧 \u003ca href=\"mailto:aaron@harriscomms.co.nz\"\u003eaaron@harriscomms.co.nz\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhat is a sill strengthening kit?\u003c\/h3\u003e\n\u003cp\u003eA sill strengthening kit reinforces the sill area of your vehicle so it can safely accept the load of sill stands during jacking. Without reinforcement, repeated jacking can deform or damage the sill structure.\u003c\/p\u003e\n\n\u003ch3\u003eIs this kit suitable for circuit racing and rally vehicles?\u003c\/h3\u003e\n\u003cp\u003eYes. The GRP4 Fabrications GRP5815 is designed for motorsport use across circuit racing, rally, and other competitive disciplines where vehicles are regularly lifted on sill stands.\u003c\/p\u003e\n\n\u003ch3\u003eDoes Harris Race Radios stock this in New Zealand?\u003c\/h3\u003e\n\u003cp\u003eYes. NZ stock is held locally for fast dispatch, with shipping available to Australia.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is a sill strengthening kit?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A sill strengthening kit reinforces the sill area of your vehicle so it can safely accept the load of sill stands during jacking. Without reinforcement, repeated jacking can deform or damage the sill structure.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this kit suitable for circuit racing and rally vehicles?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The GRP4 Fabrications GRP5815 is designed for motorsport use across circuit racing, rally, and other competitive disciplines where vehicles are regularly lifted on sill stands.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Does Harris Race Radios stock this in New Zealand?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. NZ stock is held locally for fast dispatch, with shipping available to Australia.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"GRP4 Fabrications","offers":[{"title":"Default Title","offer_id":49036381716699,"sku":"GRP5815","price":199.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/6670\/1531\/files\/grp5814_1.webp?v=1785296865","url":"https:\/\/harrisraceradios.com\/products\/sill-strengthening-kit-grp5815","provider":"Harris Race Radios","version":"1.0","type":"link"}