{"type":"firestarter.listing","listing":{"id":"lst_lEXSyWxe","product_name":"IE Audi 3.0T Supercharger Pulley Upgrade | 4-Bolt Style","category":null,"description":"The IE supercharger pulley for late 4 bolt style 3.0T V6 Audi engines extracts more power from your supercharger by spinning the unit 7% faster than stock, resulting in higher boost levels. Paired with a Stage 2 Tune, you can expect gains over 25 horsepower on pump fuel.\nLEADING FEATURES\n\n\nIncreases supercharger RPM by 7%\nIncreases supercharger boost levels   \nCNC machined from billet steel\nInside bore precision honed at IE  \nZinc plated to ensure no rust\nReplaces stock pulley on 4 bolt Eaton TVS 1320 Superchargers\nEngineered in-house using CAD modeling and FEA analysis\n\nSMALL PULLEY, MORE BOOST!\nhe IE 4 Bolt Style Supercharger Pulley is designed for many late-model Audi 3.0T Supercharged engines that use the non-press-fit updated bolt-on style of supercharger pulley found on many 2016+ B8/B8.5 S4, S5, Q5, SQ5, C7/C7.5 A6, A7, and Q7 models. The pulley functions by increasing the supercharger RPM throughout the full powerband. The IE pulley is 58.8mm in diameter, making it one of most aggressive and powerful on the market.  Does not fit early press-fit style S4, S5, A6 Q5/SQ5, and Q7. These engines are easily identified because the supercharger pulley has no bolts to attach it to the supercharger.\nPULLEY SPECIFICATIONS\n\n\n\n\nPULLEY TYPE\nSUPERCHARGER PULLEY DIAMETER    \nCRANK PULLEY DIAMETER    \nSUPERCHARGER RATIO    \n\n\nStock 4 Bolt Pulley\n62.9\n162.25\n2.5794\n\n\nIE Stage 2 4 Bolt Pulley\n58.8\n162.25\n2.7593\n\n\nIE Dual Pulleys (SC &amp; crank pulleys)    \n58.8\n188\n3.1972\n\n\n\n\n \nWHAT'S INCLUDED &amp; WHAT'S SOLD SEPARATELY\nThe following items are included:\n\n\n1X IE Overdrive Supercharger Pulley\n\n\n4X Allen head pulley bolts\n\n\nThe following items are not included but required:\nStage 2 tune\n","images":["https://cdn.shopify.com/s/files/1/0024/4898/2060/products/IEpulley1.jpg?v=1591989994","https://cdn.shopify.com/s/files/1/0024/4898/2060/products/IEpulley2.jpg?v=1591989995","https://cdn.shopify.com/s/files/1/0024/4898/2060/products/IEpulley3.jpg?v=1591989995"],"price":216.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:23.752Z"},"share_url":"https://firestarter.network/l/lst_lEXSyWxe","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_lEXSyWxe' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy IE Audi 3.0T Supercharger Pulley Upgrade | 4-Bolt Style' and a budget_max comfortably above $216.99 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."]}}