FLOW 4" AWD CATTED DOWNPIPE - VW MK7 & 7.5 GOLF R

The Flow Motorsport 4” AWD Catted Downpipe is the ultimate foundation for Stock turbo, and upgraded hybrid turbo/full frame setups. Designed for enthusiasts who demand maximum flow, durability, and spool, this system is engineered to outperform and provide optimal results. 

Performance Engineering

• True 4” Mandrel-Bent Design: Smooth transitions, reduced turbulence, and maximum exhaust flow.
• 200-cell high-flow cat
• TIG-Welded & Back-Purged: Strong, clean welds designed to withstand extreme heat and boost.
• 4” to 3.5' to 3'” Transition Design: Perfectly designed to maintain spool gains while retaining compatibility with OEM or aftermarket cat-backs.

Expect to achieve spool improvements of 300–500 RPM compared to restrictive 3” or catted systems. This results in faster boost response and improved mid-range torque delivery.

High-Flow Cat

We’ve engineered our downpipe to support a 200-cell high-flow cat option, a unique offering for a 4” design. For customers who want a balance of flow and reduced emissions, this is the perfect upgrade.

Fitment

• Volkswagen Golf R MK7 (2014–2017)
• Volkswagen Golf R MK7.5 (2017–2020)

Features

• 304 Stainless Steel 
• 4” Inlet → 3.5" → 3 ” Outlet Transition
• Mandrel-Bent Piping
• TIG Welded & Back Purged
• Billet CNC Stainless V-Band Connection
• High-Quality Clamps Included
  
• Increased Turbo Spool
• 200 Cell High Flow Cat 

Processing Times

Standard in-stock orders 1–3 business days of payment confirmation.

High-demand, bundled, or special-order items may require 3–5 business days for processing due to additional preparation and quality checks.

Once dispatched, tracking details will be provided. Processing times do not include transit time.

Please allow 3-4 weeks for out of stock orders.