Product Description
ARM Motorsports Catted Downpipes BMW M3 M4 (F80 F82)
HIGHLIGHTS
• Up to +30whp / 30wtq
• Enhanced Exhaust Note
• 304 Stainless Steel
• Improved Turbo Spool
PROFILE
The ARM M3 M4 F80 F High Flow Catted Downpipes are the ultimate solution for improving power, throttle response, and exhaust note on your S55 powered F87 M2 Competition. Our goal for the ARM F87 M2 Competition Downpipes was to provide a solution that would maximize power and torque, fit perfectly, and sound extraordinary.
Downpipes are considered a standard upgrade for any F80 F82 owner looking to safely push their S55 engine beyond basic Stage 1 tuning. With Stage 2 and up tuning, higher boost increases back-pressure at the OEM catalysts and chokes the S55's turbochargers, causing them to work harder and shortening their life.
The ARM Motorsports High Flow Catted Downpipes BMW M3 M4 (F80 F82) relieve the stressful back-pressure caused by high-boost tunes, allowing the exhaust to flow freely, increasing power and torque, all while extending the longevity of your S55's turbochargers. On our test car, after installing our F87 downpipes and switching to a Stage 2 flash we made 539whp/544wtq, this is 68whp and a massive 127wtq gain over just the Stage 1 flash!
Even with the Resonated ARM F87 M2 Competition Downpipes installed on your stock-tune S55, you will notice an increase in power, torque and responsiveness. Not to mention the incredible, head-turning sounds your M2 Competition will make under part and full throttle.
RUMBLE, NOT RASP.
The ARM Catted S55 Downpipes give your F87 M2 Competition an unparalleled sound that even other F87 owners will notice. The deep, aggressive tone of the ARM F87 M2 Competition Resonated Downpipes will stand out next to the all too familiar high-pitched rasp of other downpipes. Our x" resonators are installed in the perfect location to enhance the sound of your S55 without compromising the precise fitment of our F87 M2 Competition downpipes.
CONSTRUCTION
Precision CNC machined v-band flanges offer a smooth transition of exhaust gasses from the the turbochargers to the ARM S55 Downpipes. The body of the 3" ARM F87 M2 Competition Downpipes are constructed of SS304 Stainless-Steel and are threaded smoothly and perfectly though the space given by BMW towards the mid-pipe section.
F80 M3 Downpipes S55 Resonated ARM
Any downpipes that bolt up directly to the OEM mid-pipes must reduce to the 2.5" to meet the size of the OEM mid-pipes. Some aftermarket downpipes use an abrupt, short reducer which causes turbulence in the exhaust gasses. The ARM F87 M2 Competition Downpipes feature a smooth, gradual transition from the 3" inlet to the 2.5" exit for optimum exhaust flow.
The ARM M3 M4 F80 F82 F87 M2 Catted Downpipes are a massive improvement over the OEM S55 downpipes, with precise fitment and brilliant finish the ARM S55 Resonated Downpipes are the perfect solution for your S55 project. Our goal for the ARM F87 M2 Competition Downpipes was to provide a solution that would maximize power/torque, fit perfectly, and sound uniquely extraordinary.
IN THE BOX
• ARM F80 F82 M3 M4 Catted Downpipes
• CNC Machined Bracket for Front-Turbo Downpipe
• 4x Downpipe to Mid-Pipe Bolts/Nuts
• ARM Lifetime Replacement Warranty
FITMENT GUIDE
Make Model Submodel Engine
BMW F80 M3 S55 3.0L
BMW F82 M4 S55 3.0L
BMW F83 M4 S55 3.0L
BMW F87 M2 Competition S55 3.0L
