{"product_id":"bmw-m5-f90-m8-4-4t-s63-engine-exhaust-downpipe-w-air-intakes","title":"BMW M5 F90 EXHAUST DOWNPIPE 18-23","description":"Upgrade your BMW M5 F90’s performance and sound with this high-flow  Exhaust Downpipe + Cold Air Intakes Combo  for the  4.4L Twin-Turbo S63 engine . Designed to unleash power, reduce backpressure, and enhance turbo response. \n \n ✅  Fitment Compatibility: \n \n \n \n  BMW M5 F90 (2018–2023)  \n \n \n Engine:  S63 4.4L Twin-Turbo V8  \n \n \n Transmission: Auto (ZF 8HP) \n \n \n \n 📦  Kit Includes: \n \n \n \n  Performance Catless or High-Flow Catted Downpipes  \n \n \n  Material:  T304 stainless steel or optional  titanium  \n \n \n  Mandrel-bent tubing  for optimal flow \n \n \n  Precision TIG welds  and laser-cut flanges \n \n \n Improved turbo spool and aggressive exhaust note \n \n \n Compatible with OEM and aftermarket exhaust systems \n \n \n \n \n  High-Flow Cold Air Intakes  \n \n \n Dual  open-air cone filters  or sealed carbon fiber boxes \n \n \n Optional  carbon fiber intake tubes  \n \n \n Increased airflow, enhanced turbo induction sound \n \n \n Improves throttle response and top-end power \n \n \n \n \n \n 🔧  Performance Gains: \n \n \n \n +30–60 HP (depending on tune and setup) \n \n \n Sharper  turbo response  \n \n \n Louder,  deeper exhaust tone  \n \n \n Prepares your setup for  Stage 2+ ECU tuning  \n \n \n \n ⚠️  Notes: \n \n \n \n Tuning recommended for  catless downpipes  \n \n \n Check  emissions compliance  in your region \n \n \n May trigger CEL if not tuned \n \n \n \n 🏁 Optional Add-ons: \n \n \n  Heat wraps  or  thermal coating  for heat management \n \n \n  O2 sensor spacers  (for CEL mitigation) \n \n \n  Carbon fiber intake boxes  for added under-hood style \n \n \n \n Want help choosing between  catless vs catted  or  carbon vs aluminum  intakes? I’ve got your back with pros and cons. Just let me know your goals — sound, performance, or emissions-safe daily setup!","brand":"Project Styling","offers":[{"title":"Default Title","offer_id":57052920086906,"sku":"46722212856022","price":1339.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0730\/2748\/6009\/files\/4d2d06e7732f248953be853aa06d5865.jpg?v=1783536861","url":"https:\/\/projectstyling.co.uk\/products\/bmw-m5-f90-m8-4-4t-s63-engine-exhaust-downpipe-w-air-intakes","provider":"PROJECT STYLING","version":"1.0","type":"link"}