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Dinan Free Flow Valved Axle-Back Exhaust with X-Pipe - BMW M2 Competition 2019-2021 - Black Ceramic Tips

Dinan SKU: DNND660-0082-BLK
Price
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The Dinan Free Flow axle-back exhaust replaces the factory rear section and resonator on the F87 M2 Competition. A redesigned muffler with new internal baffling and an X-pipe in place of the factory resonator turn the raspy S55 note deeper and throatier while raising volume. Piping grows from the stock 65mm to 70mm, and the whole system is T304 stainless steel. The factory computer-controlled exhaust valves are retained, so the system stays quiet at low speed and opens fully under high load.

Specifications

Type Axle-back exhaust with X-pipe
Material T304 stainless steel
Tips 4 x 4in (102mm) double-walled, clamp-on, laser engraved
Tip Finish Black ceramic coated
Pipe Diameter 70mm (stock 65mm)
Valved Yes, retains the factory computer-controlled exhaust valves
Max HP Gain +6 hp @ 6,300 rpm
Max Torque Gain +5 lb-ft @ 6,300 rpm
Chassis F87 (S55 engine)
What's in the Box
  • Muffler assembly with X-pipe
  • Four exhaust tips
  • Clamps and couplers
  • Valve mounts and extension harnesses
  • Mounting hardware
Install Instructions call for cutting the stock exhaust; clamps torque to 45 ft-lbs
Labor Time 2.5 hours
Warranty Dinan Limited Warranty: remainder of the BMW new vehicle warranty (4 yr/50,000 mi, US/Canada-spec cars), or 2 years unlimited mileage once out of factory warranty
Quantity 1 kit
Part Number D660-0082-BLK

This part fits:

Year Make Model Submodel
2019-2021 BMW M2 Competition

Documents: Installation Instructions (PDF)

Which cars does this exhaust fit?

  • The 2019-2021 BMW M2 Competition (F87) with the S55 engine.

Does it keep the factory exhaust valves?

  • Yes. The factory computer-controlled valves are retained, so the exhaust stays quiet at low speed and opens fully under high load.

What happens to the factory resonator?

  • It is replaced by an X-pipe, which raises volume and gives a deeper, throatier note.

What comes in the box?

  • The muffler assembly with X-pipe, four black ceramic tips, clamps, couplers, valve mounts, extension harnesses and mounting hardware.

How long does installation take?

  • Labor time is 2.5 hours, and the instructions call for cutting the stock exhaust.

Shipping

  • Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
  • Standard, expedited, and overnight options at checkout.
  • Oversized items ship by freight and take longer.
  • Special order items follow a lead time we confirm with you individually before the order is committed.
  • Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
  • Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
  • International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

  • 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
  • Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
  • Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
  • Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
  • Product images may be representative. The SKU and specifications in the listing are what ships.
  • Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Returns & Refunds · Warranty
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