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Exhaust› Exhaust Pipes, Systems and Components

Unitronic

3" T304 Stainless Steel Performance Downpipe

$1,231.99 $1,099.99 Save $132.00

SKU: UH014-EXA

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Unironic UH014-EXA is a performance downpipe constructed from 3" T304 stainless steel mandrel-bent tubing and T316 stainless steel flanges. It features a corrugated stainless steel flex section and is TIG welded.
Show original supplier description
The Unironic UH014-EXA is a performance downpipe crafted for enhanced airflow and exhaust efficiency. It is constructed from durable 3" T304 stainless steel mandrel-bent tubing, paired with T316 stainless steel flanges for superior longevity and resistance to corrosion. This downpipe is equipped with a 200-cell high-flow metallic catalytic converter and features flow-matched transitions to maximize performance and airflow. An easy-to-use v-band exhaust fastening system is integrated for a fast, precise installation. Additionally, an OEM-inspired catalytic converter heat shield is included to mitigate unwanted heat radiation in the exhaust tunnel. Each Unitronic exhaust system is further distinguished by an embossed Unitronic logo, an individualized serial production plate for authenticity, and a brushed matte finish for a lasting, elegant appearance.
Vehicle Symptoms
  • sluggish top-end acceleration
  • turbo spools slower than normal
  • muffled/restricted exhaust note
  • rotten egg smell from tailpipe
  • check engine light for catalyst efficiency
Diagnostic Codes
  • P0420 – cat efficiency below threshold (B1)
Relevant Conversations
  • Unitronic 3" downpipe 200 cell vs catless
  • P0420 code fix without deleting cats
  • Unitronic UH014-EXA install time and tools
  • symptoms of clogged catalytic converter downpipe
  • does 3 inch downpipe require an ECU tune
  • Unitronic downpipe vs CTS Turbo downpipe
  • high-flow catalytic converter downpipe emissions test
  • downpipe exhaust smell after install normal?
  • turbo lag downpipe upgrade my experience
  • best downpipe for P0420 and better spool

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandUnitronic
Part NumberUH014-EXA
CategoryExhaust
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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