Unitronic 4.0T Downpipes

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Unitronic 4.0T Downpipes Unitronic 4.0T Downpipes

Product Information

Constructed of 2.5" T304 stainless steel mandrel bent tubing, T316 stainless steel flanges, a corrugated stainless steel flex section, and TIG welded fabrication, this downpipe is built to outlast and outperform the competition. All Unitronic downpipes come equipped with a 200-cell high flow metallic catalytic converter and all transitions are flow-matched to allow for maximum performance and airflow. To finish it off, an OEM-inspired catalytic converter heat-sheild protects against unwanted heat radiating in the exhaust tunnel. Every Unitronic Exhaust System comes with a brushed matte finish for an elegant appearance that will last a lifetime.

Features / Benefits

  • T304 Stainless Steel Mandrel Bent Tubing

  • Direct bolt-on fitment with OEM mounting locations

  • 2.5-inch T304 stainless steel tubing

  • T316 stainless steel flanges

  • 200-cell metallic matrix high-flow catalyst

  • Factory catalyst position for maximum efficiency

  • OEM-inspired catalytic converter heat shield to reduce radiant heat

  • Proper Oxygen sensor placement

  • TIG welded construction

Hardware Included

  • Unitronic 2.5" Downpipes with Catatlytic Converters

  • All Necessary Hardware Included

Required Software

  • Untronic Stage 2 Performance Software with DTC/Code patch for no exhaust flaps


Featuring a unique v-band fastening system and engineered using the latest in 3D modeling technology, Unitronic Performance Exhaust Systems are made easy to install.


Brand: Unitronic
Product Code: UH013-EXA
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