Mercedes-AMG GT M178 Spool Race Downpipes

Spool race downpipes for the Mercedes-AMG GT, GT S, GT C and GT R replace the factory downpipes on the M178 V8 to cut backpressure and free up the turbos.

Why you need it

Less backpressure lets the turbos spool faster and build boost more efficiently. Paired with a tune, that means a noticeable power gain, and the M178 picks up a deeper, more aggressive exhaust note along the way.

Fits

• Mercedes-AMG GT (M178)
• Mercedes-AMG GT S (M178)
• Mercedes-AMG GT C (M178)
• Mercedes-AMG GT R (M178)

Features

• 304 grade stainless steel for strength and corrosion resistance
• Smooth transitions for maximum flow and less restriction
• Faster, more efficient turbo spool
• Power gains with a supporting tune
• Deeper, more aggressive sound

Good to know

A tune is needed to see the full power gain. These downpipes replace emissions-related equipment. Intended for off-road and competition use only. Not legal for use on public roads in many areas. Professional installation is recommended.