{"product_id":"boost-logic-4-5-exhaust-valved-rear-section-for-r35-gtr","title":"Boost Logic 4.5\" Exhaust Valved Rear Section for R35 GTR","description":"\u003cp\u003eBoost-activated valved muffler upgrade for the Boost Logic Magnum 4.5\" Titanium Exhaust — muffler section only, reuses your existing tips. Valves stay closed under 7 psi for a subdued cruising tone (about 10 dB quieter than the non-valved version), then open above boost for maximum flow and an aggressive sound. Zero back pressure or power loss when closed; matches full race exhaust flow when open.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Boost Logic Magnum 4.5\" exhaust systems only.\u003c\/p\u003e","brand":"Boost Logic","offers":[{"title":"Default Title","offer_id":48410434437314,"sku":"BL 02010910-45-VMS","price":2499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0629\/2026\/1826\/files\/DSC01256-Edit-scaled.jpg?v=1783984526","url":"https:\/\/gradeagarage.com\/products\/boost-logic-4-5-exhaust-valved-rear-section-for-r35-gtr","provider":"Grade A Garage","version":"1.0","type":"link"}