{"product_id":"2-304-stainless-up-pipes-2001-2016-6-6l-duramax-lb7-lly-lbz-lmm-lml","title":"2001–2016 6.6L Duramax 2\" 304 Stainless Up-Pipes (LB7\/LLY\/LBZ\/LMM\/LML)","description":"\u003cp\u003eDirect bolt-on 304 stainless steel up-pipes for 6.6L Duramax engines (LB7\/LLY\/LBZ\/LMM\/LML). OEM-length left\/right pipes with free-flowing stainless inner-liner bellows reduce exhaust backpressure, improve turbo response, and lower exhaust temperatures.\u003c\/p\u003e\n\u003cp\u003eFitment\u003cbr\u003e- 2001–2016 Duramax 6.6L: LB7, LLY, LBZ, LMM, LML\u003c\/p\u003e\n\u003cp\u003eContents\u003cbr\u003e- 4 stainless gaskets  \u003cbr\u003e- 12 x 12.9 grade bolts \u0026amp; washers\u003c\/p\u003e\n\u003cp\u003eKey Features\u003cbr\u003e- Material: 304 stainless steel, 11‑gauge (.120\" wall)  \u003cbr\u003e- Diameter: 2.00\" OD up-pipes  \u003cbr\u003e- Flow: ~50% more flow over stock; significant reduction in exhaust backpressure  \u003cbr\u003e- Construction: Free‑flowing stainless steel inner‑liner bellows for durability and thermal stability  \u003cbr\u003e- Fitment: OEM length left and right; passenger pipe indented for firewall clearance  \u003cbr\u003e- Benefits: Faster turbo response, lower exhaust temperatures, direct bolt‑on replacement to factory manifolds\u003c\/p\u003e\n\u003cp\u003eNotes\u003cbr\u003e- Professional installation recommended. Verify exhaust\/manifold compatibility on highly modified engines.\u003c\/p\u003e","brand":"JAT Supply Co","offers":[{"title":"Default Title","offer_id":45406341562559,"sku":null,"price":295.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0506\/8433\/0175\/files\/66L-Duramax-Heavy-Duty-Ugraded-304SS-Up-Pipes-W-Gaskets-01-16-GMC-Chevy-272313437192-1024x613.webp?v=1774409541","url":"https:\/\/jatsupplyco.com\/products\/2-304-stainless-up-pipes-2001-2016-6-6l-duramax-lb7-lly-lbz-lmm-lml","provider":"JAT Supply Co","version":"1.0","type":"link"}