{"nhtsa_id":11034599,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-07-07","date":"2026-06-29","document_id":"20/25 2601","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":"Exhaust: Sports exhaust","summary":"Sport exhaust system installation instructions","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11034599-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11034599-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11034599","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PORSCHE","model":"911","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_porsche_911","2026_porsche_911"]},{"make":"PORSCHE","model":"911 CARRERA","year_from":2025,"year_to":2026,"match":"base","vehicle_ids":["2025_porsche_911","2026_porsche_911"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}