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The ARM S58 Resonated Downpipes are one of, if not the best all around hardware upgrades for the G8X platform. By reducing backpressure on your S58's turbos, you can spool faster and hit target boost quicker. Making the ARM S58 Resonated Downpipes one of the greatest all-around investments for your G8X.
The ARM S58 Resonated Downpipes will increase the overall volume of your exhaust, make the exhaust burbles more audible (even on OEM programming), and make the turbo spool significantly more noticeable.
The ARM S58 Downpipes starts with a 3" diameter precision CNC machined turbo v-band flange. Each downpipe uses either a Catless Resonator, or a 200-Cell High-Flow Catalyst. If you select the Catless Resonated S58 Downpipes, your downpipes will have our resonators installed to help tune the tone of your S58 for a strong and aggressive sound while maximizing exhaust flow. If you select the catted S58 Downpipes, the catalysts will replace the resonators found in the the catless/resonated downpipes. The catted S58 downpipes will likely still produce a CEL. To remove a CEL you will need a tune or a CEL Delete Kit.
| Make | Model | Submodel | Engine |
|---|---|---|---|
| BMW | G80 | M3 | S58 3.0L |
| BMW | G80 | M3 Competition xDrive | S58 3.0L |
| BMW | G82 | M4 | S58 3.0L |
| BMW | G82 | M4 Competition xDrive | S58 3.0L |
| BMW | G83 | M4 | S58 3.0L |
| BMW | G83 | M4 Competition xDrive | S58 3.0L |
| BMW | G87 | M2 | S58 3.0L |
Backed by the ARM Motorsports Lifetime Warranty against defects in craftsmanship or fitment. See the full terms for details.
Off-road use only: This product is intended for racing vehicles and may be illegal for use on public roads in many states or provinces.