Top Speed Pro-1 Mercedes-Benz AMG GT / GTS / GTC / GTR Race-Spec Straight Turbo Downpipes – M178 4.0L (2015–2020)

Mercedes-Benz AMG GT / GTS / GTC / GTR (2015–2020) Race-Spec Straight Turbo Downpipes

C190 M178 4.0L Twin-Turbo V8

Newly released Top Speed Pro-1 race-spec bolt-on straight turbo downpipes, engineered for the Mercedes-Benz AMG GT (2015–2020), AMG GTS (2015–2020), AMG GTC (2017–2020), and AMG GTR (2017–2020) equipped with the M178 4.0L twin-turbo V8. This 3" straight-through design is built to maximize exhaust flow, reduce restriction, and deliver a deep, aggressive exhaust tone.

The kit includes a 4-piece downpipe set (as shown in product images). Constructed from premium T304 stainless steel with precision TIG-welded fabrication, these downpipes offer exceptional performance and value.

Key Features

• Race-spec 3" straight turbo downpipe design
• Set includes: 4 sections (complete kit)
• Material: T304 stainless steel with TIG welding
• Installation: Direct bolt-on using OEM mounting hardware and factory heat shields
• Actual total weight: 23 lbs for all 4 sections
• One of the most affordable high-quality performance downpipe options available

Performance & Sound

Designed to produce a very deep, aggressive exhaust tone suited to the AMG 4.0L twin-turbo platform.

Important Notes

• Off-road use only
• Will not pass emissions or smog inspections
• ECU tuning is recommended to bypass diagnostic codes

Shipping Information

Free shipping applies to the 48 contiguous U.S. states only.