ARM 3.5" Catted Downpipes for Mercedes-AMG GT (C190)

Overview

The factory AMG GT downpipes are highly restrictive, designed primarily for economy and noise reduction rather than performance. As power levels increase, these restrictions lead to excessive backpressure, higher exhaust gas temperatures, and reduced turbo efficiency.

The ARM AMG GT C190 3.5" Downpipes are engineered to remove these limitations and unlock the true performance potential of the M178 twin-turbo V8. By dramatically improving exhaust flow directly after the turbochargers, these downpipes deliver faster spool, sharper throttle response, and substantial horsepower and torque gains when paired with tuning.

Designed as one of the best power-per-dollar upgrades for the AMG GT, GTS, GTC, and GTR, the ARM C190 AMG GT Downpipes support aggressive street driving, track use, and high-performance builds while maintaining precise OEM-level fitment.

Details

Highlights

• Increased Power and Torque
• Faster Turbo Spool
• Aggressive Exhaust Note
• Increased Throttle Response
• Lower Under-Hood Temperatures
• 100% Bolt-On Installation

Construction

• ARM AMG GT Downpipes start at the turbochargers with a 3.5" V-Band flange
• Transitions to 3" diameter to allow clearance through the tunnels down to the lower 3.5" sections of the ARM AMG GT Downpipes
• Integrated pre- and post-catalyst O2 sensor bungs
• Lower 3.5" sections improve the tone of the M178 exhaust note further, giving your C190 AMG GT the sound it deserves
• OEM-style midpipe connections in order to connect with the factory catback section, or any aftermarket exhaust that mates up to the OEM downpipes

What's in the Box

• 2x ARM AMG GT 3.5" Catted Downpipe Upper Sections
• 2x ARM AMG GT 3.5" Downpipe Lower Sections
• 1x ARM Ball-and-Socket Adapter
• 1x ARM Slip-Fit Adapter
• 2x Ball-and-Socket Clamps
• 2x 3.5" Slip Fit Clamps
• 4x Bolts and Nuts

Warranty & Off-Road Use

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.

Fitment

Watch: Video