Dinan
Dinan 18-23 BMW M5 (F90) Free Flow Axleback Exhaust System - Polished Tips
Why this price?
$2,699.95 is MSRP, the lowest price Dinan lets us list it at. Additionally, Pro members get $189.00 back on this part.
$2,699.95 − $189.00 = $2,510.95
Special Order
This part is still available to order. Once you place your order, we’ll submit it directly to Dinan, and they’ll ship it straight to you.
Delivery times can vary depending on the brand, so we can’t guarantee an exact arrival date. What we can guarantee is that we’ll stay on top of your order, monitor its progress, and keep you updated until it reaches your door.
Special-order items are typically not kept in stock by most retailers. By ordering through us, your order is placed directly with Dinan, assuring you get the part as quickly as possible.
Want to get an estimated delivery timeframe before ordering? Contact us through our contact page, and we’ll be happy to find out for you.
Not sure it fits? Read our tips.
Fitment tips
Fitment can come down to more than year, make and model. Sometimes the sub-model decides, so start with the fitment table below.
- Drive type. If your car is all-wheel drive, make sure the part is for all-wheel drive, not rear-wheel drive.
- Engine size. For engine parts, make sure the engine size on the product matches your engine.
- Transmission. Manual and automatic cars often take different parts.
- Body style. Sedan or hatch, two-door or four-door, cab and bed length on trucks.
Manufacturer data can sometimes have imperfections. Still not sure? We are happy to help.
Send us a message and we will confirm the fit.
Couldn't load pickup availability
In order to achieve desired sound volume and tone, Dinan felt becoming of the F90 M5 the tubing was enlarged to 83mm (vs 80mm stock) to allow freer flow throughout the entirety of the system. The larger tubing is fed into a muffler that is typical of all Dinan exhaust design and utilizes absorption and reactive technologies designed to improve exhaust flow and reduce backpressure. The combination results in increased power output and a great sporty sound that is civilized when you want it to be, and pleasantly aggressive under hard acceleration. This is partly courtesy of the retained computer-controlled exhaust valves that limit noise during low-speed driving and open fully during high-load conditions to allow free flow and greater sound as the bulk of the gases are bypassing the muffler. Like all Dinan exhausts, our M5 free flow exhaust is engineered to reduce low-RPM drone so the cabin of the vehicle is still intimate and not drowned in an excessively loud tone. With the Dinan exhaust equipped on the M5 you get the best of both worlds; aggressive tone/sound and civility. A combination that we have termed internally as "refined aggression."
Installation Instructions- Stock exhaust valve actuators reused and operation of exhaust valve is unchanged so exhaust tone can be adjusted via the M-drive settings
- Computer controlled exhaust valves are retained and limit noise during low speed driving and open fully during high-load conditions
- Twin secondary exhaust valves are a whopping 76mm diameter, making them 30% less restrictive than the OE valves
- Four massive 4" diameter clamp-on, double-walled, polished and laser engraved exhaust tips
- Easy bolt-on installation with included mounting hardware
- Larger diameter piping for increased flow (83mm vs 80mm)
- More Power: + 6 HP @ 6600 RPM, + 5 LB-FT @ 6600 RPM
- 100% 304 stainless steel construction
- Enjoyably louder, sportier sound
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2018-2023 | BMW | M5 | Base |
| 2019-2021 | BMW | M5 | Competition |
| 2022 | BMW | M5 | CS |
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