Weistec M157 Downpipes and Exhaust – G63 AMG
What You Need to Know
Product Details
Weistec's performance downpipe and exhaust system for M157-equipped G63 AMG replaces the restrictive factory setup with 3-inch mandrel-bent 304 stainless steel construction. CAD-engineered for optimal fitment and TIG-welded throughout. Includes downpipes, midpipes, heat shields, gaskets, and hardware.
Performance Gains
- Up to +224 HP and +292 lb-ft at the engine (with matching ECU tune)
- Enhanced exhaust note and flow
- Mandrel-bent, TIG-welded 304 stainless construction
- Bolt-on installation with Weistec stainless steel heat shields
Fitment
- 2012-2017 Mercedes-Benz G63 AMG (W463)
- 2013-2018 Mercedes-Benz G63 AMG 6x6 (W463)
- Engine: 5.5L Twin Turbo V8 (M157)
Important: Requires ECU tuning. Not 50-state emissions legal; intended for off-road/track use.
Fulfillment times for this product vary depending on supplier stock and build status. Please call (907) 318-6055 or email sales@adrenaline-hq.com to confirm the current ETA before placing your order.
Shipping & Returns
Shipping cost is based on weight. Add products to your cart and use the shipping calculator to see the price.
We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 30 days of delivery.