PPE 3" STAINLESS STEEL DOWNPIPE 117000700 | 2015.5-2016 Duramax 6.6L LML

Upgrade the restrictive factory downpipe on your 2015.5–2016 6.6L Duramax LML with the PPE 3" Stainless Steel Downpipe. The OEM pipe features a crushed oval design that limits exhaust flow, while this mandrel-bent 3" round pipe improves airflow, durability, and overall performance.

Constructed from high-quality 304 stainless steel and paired with a woven titanium heat sleeve, this downpipe is built to withstand extreme conditions while helping reduce engine bay temperatures.

Key Benefits:

• Eliminates restrictive factory downpipe design
• Improves exhaust flow and performance
• Reduces under-hood temperatures
• Long-lasting corrosion-resistant construction

Features:

• 3" mandrel-bent tubing for smooth exhaust flow
• 304 stainless steel construction
• Integrated M20-1.5 and M14-1.5 sensor ports
• Woven titanium sleeve for heat management
• CARB EO# D-701-30 compliant

Fitment Notes:

• Fits 2015.5–2016 models with 3-bolt triangular flange
• Early 2015 models with V-band clamp require a different downpipe