{"type":"firestarter.listing","listing":{"id":"lst_OmaaK1dO","product_name":"SPA TURBO Forged piston and rings set 83.5mm VW 2.5L Jetta MK5 07k","category":"Forged pistons","description":"\n\nFor VW 2.5L Jetta MK5\nNominal bore diameter: 83.5mm\n Recommended bore to piston to bore clearance: 0.08mm (For nitrous or extreme applications, consult your builder)\nPiston ring grooves: 1.5 mm / 1.5 mm / 2.0mm\nCompression height: 29.3mm.\nDish volume: 12.7cc\nPin offset: 1.10mm.\nMaterial: Forged aluminum 4032 T6.\nAverage piston weight (unit, without pin): 329g (11.60 oz).\nRated for 1000hp.\nInnovative high performance piston skirt design that provides:  1. Smaller piston to bore clearance   2. Less noise  3. Better ring seal  4. Higher power  5. Durability\n Features:\nAnti detonation grooves: protect the top ring by disrupting detonation waves and reduce piston-cylinder contact in high temperatures and engine RPM conditions.\nAccumulator groove: accumulates residual combustion gasses reducing top ring flutter and improving seal.\nPin oil lubrication by broaches and oiler to reduce friction and increase durability.\n Super A Piston Pin VW 2.5L Jetta MK5  – 5pcs set\nDimensions: 63.45mm x 20mm (length x O.D.)\nAverage unit weight: 116g (4.09 oz)\nRated for 1.000hp\nMade from special steel alloys that combines optimal mass with high resistance.\n \nPiston rings 83.5mm set  Contains 01 complete set for 5 cylinder engine. Compatible with SPA Super A, with 1.5mm / 1.5mm and 2mm channels. Ring thickness: 1st ring 1.5mm - Made of carbon steel, which is 35% more resistant than cast iron and on average 30% lighter. With DLC (Diamond-Like Carbon) treatment, which is the application of carbon particles, whose physical and chemical properties are very close to those of the diamond, providing greater resistance to the material and reducing the friction of the surface, which significantly reduces friction when working against other surfaces. 2nd ring 1.5mm - Made of cast iron. 3rd ring 2.0mm - Manufactured in 3 pieces, which guarantees easy maintenance, better stability in the control of the oil film and improves the oil removal through the piston lubrication holes, as it has a better area ","images":["https://cdn.shopify.com/s/files/1/0024/4898/2060/files/CMBMVLPTW33_dfc833c7-18db-4a23-9308-0762453b56d7.png?v=1771253525","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/CMBMVLPTW33-CMBMVLPTW34-CMBMVLPTW35_47788d6c-e61c-400b-92b3-bbc9b2bac82e.jpg?v=1730997109","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/MVLPTW33_2_65160219-862c-4722-9ab2-26e39c601c55.jpg?v=1730997109"],"price":799.9,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:21.117Z"},"share_url":"https://firestarter.network/l/lst_OmaaK1dO","purchase":{"summary":"Live product listing on the Firestarter agent commerce network. Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer <your Firestarter API key>","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_OmaaK1dO' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy SPA TURBO Forged piston and rings set 83.5mm VW 2.5L Jetta MK5 07k' and a budget_max comfortably above $799.90 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}