Dinan
Dinan 15-20 BMW M3/M4 (F80/F82/F83) Free Flow Axleback Exhaust System - Black Tips
Dinan 15-20 BMW M3/M4 (F80/F82/F83) Free Flow Axleback Exhaust System - Black Tips
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Dinan's Free Flow axle-back exhaust system features 100% stainless steel construction measured to exact specifications to ensure proper fit via factory hangers and mounting points. Dyno tuned for maximum exhaust flow with minimum backpressure, this system is designed to provide a more aggressive sound under acceleration, while reducing drone inside the vehicle, thanks to computer-controlled valves that limit noise during low-speed driving and open fully during high-load conditions to allow free flow. The exhaust gasses exit through larger laser engraved polished, or ceramic black, quad tips.
Every Dinan product comes with our industry-exclusive factory matching new car bumper to bumper warranty and is designed and tested in Morgan Hill, California and can be purchased and installed at any Dinan Approved BMW dealership nationwide.
The F8x M3/M4's are an audible treat right off the showroom. Coupled with a Dinan exhaust however they become a symphony of aural delight that even the most discerning ear will find pleasing.
Features
- Computer controlled valve limits noise during low speed driving; valve opens fully during high-load conditions to allow free flow
- Twin secondary exhaust valves with a whopping 76mm diameter, making them 45% less restrictive than the OE valves.
- Operation of exhaust valve is unchanged so exhaust tone can be adjusted via the M-Drive settings.
- Quad 3.5" black ceramic coated, or polished stainless, laser engraved exhaust tips
- Uses the factory brackets and hangers for a factory-like fitment
- Drone abatement technologies used to reduce cabin resonance
- Dinan exhaust is 3 lbs lighter than stock
- Stock exhaust valve actuaters are reused
- 100% 304 stainless steel construction
- Enjoyably louder, sporter sound
- More Power: +5 HP
Vehicle Fitment
- 2015-2018 BMW M3
- 2015-2020 BMW M4
Please verify exact fitment (engine, submodel, and trim) before purchasing.
Manufacturer Part Number: D660-0050-BLK
Images are for illustration purposes only; actual product may vary.
⚠ WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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Manufacturer's Warranty — Dinan
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Manufacturer's Warranty — Dinan
Dinan warrants its Performance Products to be free from defects in materials and workmanship, and the term depends on the car. If the vehicle is still covered by the original manufacturer's new car limited warranty (4 years or 50,000 miles — 80,000 km in Canada — from first retail sale; US and Canadian specification vehicles only), the Dinan part is covered for the remaining term of that new car warranty, and an Authorized Dinan Dealer repairs or replaces the defective Dinan component without charge for parts or labor, including any original manufacturer component directly affected by it. If the car is out of its new car warranty, Dinan Performance Products carry a 2-year, unlimited mileage warranty from the date of original purchase; labor is reimbursed at the dealer's standard flat-rate, but repairs to affected original manufacturer components are not reimbursed. DINANTRONICS Sport, DINANTRONICS X and DINANFLASH handheld units are 1 year, unlimited mileage; refurbished products are 90 days; and racing-only parts are guaranteed against defects in workmanship only — they are not warranted against wear or failure and may affect the BMW factory and emissions warranty. Dinan's warranty is transferable when the vehicle it was installed on is sold. A lawful invoice as proof of purchase is required, and the defective part must be returned to Dinan for verification before any adjustment. Not covered: return shipping, towing and rental car charges; unauthorized modification of a Dinan part, or damage from using other manufacturers' products alongside Dinan systems; non-DCT clutch assemblies, brake rotor warp and friction materials; maintenance items such as spark plugs, filters, lubricants, fluids, coolant, drive belts and light bulbs; negligence, abuse or improper installation; engine damage from altering Dinan's original boost pressure; improper or contaminated fuel; collision damage; environmental damage, flood, fire or road-salt corrosion; and any vehicle operated in a competitive event or subjected to aggressive track conditions. The warranty is void if the VIN or odometer has been altered, if the vehicle was declared a total loss or salvage, or if it has been used in competition. Note that installing performance products may affect the vehicle manufacturer's own new car warranty. Because Dinan handles claims through an Authorized Dinan Dealer, if you bought it here, contact PitStopTuning and we'll file the claim with Dinan for you rather than approaching Dinan directly.
Warranty terms are set by the manufacturer and may change. Contact us if you need help with a warranty claim.

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