Description
HIGHLIGHTS
• Increase Power and Torque
• Faster Turbo Spool
• Exotic Exhaust Sound
• SS304 Stainless Steel
PROFILE
The ARM S58 Catted Downpipes increase power and torque on your S58-powered BMW while unleashing exotic sounds from your tailpipes. The ARM S58 Catted Downpipes are one of, if not the best all around hardware upgrades for the G8X platform. The ARM S58 Catted Downpipes improve throttle-response throughout the RPM range while stepping up the exhaust note, all without the need to replace the entire catback system on your S58.
By reducing backpressure on your S58's turbos, you are able to spool faster and hit target boost quicker. The outcome is more power sooner, resulting in faster 0-60 and 1/4 miles times. If you are planning to tune your S58, this will benefit your G8X even more, as the backpressure will increase on S58's running higher than OEM boost. Making the ARM S58 Catted Downpipes one of the greatest all-around investments for your G8X.
ENHANCE THE SOUND OF YOUR B58
The ARM S58 Catted 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. Check out the links below for some sound clips of our Resonated S58 Catless Downpipes.
CONSTRUCTION
The ARM S58 Catted Downpipes are built with SS304 stainless steel and backed by the ARM Motorsports Lifetime Warranty. The ARM S58 Catted Downpipes starts with a 3" diameter precision CNC machined turbo v-band flange.
Each downpipe utilizes either a 200-Cell High-Flow Catalyst.
If you select the catted S58 Downpipes, the catalysts will replace the resonators found in the the catless/resonated downpipes. The catted version sounds very similar to the catless variant, but will help with some of the exhaust odor.
The longer downpipe (front downpipe) in the set utilizes a reinforced flex section. The flex section is incorporated into the long downpipe to relieve stress on the turbo during aggressive driving.
Both ARM S58 Catted Downpipes then transition to a 2.75" 2-Bolt connection to secure seamlessly to the OEM S58 midpipes, or any aftermarket midpipes that connects to the OEM downpipes.
• ARM S58 Catted Downpipes
• Midpipe Connection Mounting Hardware
| 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 |
ARM MOTORSPORTS LIFETIME WARRANTY
Every ARM Motorsports product is backed by a lifetime warranty which is automatically issued at the time of purchase. Your warranty protects you against any defects in craftsmanship or fitment. The warranty entitles you to a replacement unit.
This product is for Off-Road Use Only. Items sold for off-road use only are illegal to use on public roads in most states and provinces. This product is intended for racing vehicles which may never be used on a public road.
