{"product_id":"dinan-free-flow-axleback-exhaust-black-tips-bmw-f90-m5","title":"Dinan Free Flow Axleback Exhaust - Black Tips - BMW F90 M5","description":"\u003cp\u003eDinan engineered the F90 M5 axleback with 83mm tubing — 3mm larger than OEM — to allow freer flow through the entirety of the system before gases reach the muffler. The muffler itself uses a combination of absorption and reactive damping technologies to reduce low-RPM drone while stepping aside under hard acceleration, when the retained computer-controlled exhaust valves open fully and bypass the muffler. Stock valve actuators are reused, so M-Drive exhaust mode still adjusts the system exactly as it did from the factory. Quiet in traffic. Loud at full load.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e+\u003c\/strong\u003e 83mm tubing — 3mm larger than OEM for freer system flow\u003cbr\u003e\u003cstrong\u003e+\u003c\/strong\u003e Retains factory computer-controlled valves and M-Drive exhaust mode integration\u003cbr\u003e\u003cstrong\u003e+\u003c\/strong\u003e Absorption and reactive damping muffler tech — reduced drone at low RPM\u003cbr\u003e\u003cstrong\u003e+\u003c\/strong\u003e Black ceramic laser-engraved tips\u003cbr\u003e\u003cstrong\u003e+\u003c\/strong\u003e BMW F90 M5 fitment (S63)\u003c\/p\u003e","brand":"Dinan","offers":[{"title":"Default Title","offer_id":51268700471542,"sku":"DNND660-0079-BLK","price":2699.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2674\/6278\/files\/95e2cd23c6afca642773d9b66baf81b8L.jpg?v=1784135576","url":"https:\/\/autotecknic.com\/products\/dinan-free-flow-axleback-exhaust-black-tips-bmw-f90-m5","provider":"AutoTecknic USA","version":"1.0","type":"link"}