RV6™ Catted Downpipe & Front Pipe Combo for 10th Gen Honda Civic Si (turbocharged 1.5L)

$849.00 USD

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Fits: 10th Gen Honda Civic Si (turbocharged 1.5L)

WARNING: Intended FOR OFF ROAD USE ONLY. See below for more.

BEFORE ORDERING: RV6 will warranty the castings and welding for 24 months. There is no warranty on the catalytic converters.

Introducing the highly anticipated RV6® Downpipe and Frontpipe combo for the 10th Gen Honda Civic Si, equipped with the Turbocharged 1.5L (L15B7) engine.

This combo replaces the highly restrictive O.E pre-cat and front pipe with a free flowing contoured casting and full radius 3.0" tubing. The upper factory heat shields can still be installed for thermal management.

The entire assembly is made of high quality 304 stainless steel and is TIG welded by our master welders in the USA.      

The RV6® Civic SI downpipe and frontpipe were completely designed using Solidworks 3D modeling and our Romer CMM system for extremely precise measurements.

The transition from turbo to tube was designed using advance flow analysis for maximum flow characteristics. This transition was then made into a high-strength 304 stainless precision casting. The entire system was designed using full radius bends for a optimize turbulence free flow. 

On a turbocharged engine, we understand the importance of thermal management. This is especially important with the air intake path directly over the downpipe.


  • 300 Cell High Temperature High Flow Cat
  • 304 Stainless Precision Cast transition sections
  • 304 Stainless 3.0” OD Tubing
  • Quality USA made Clampco Vband clamp for leak free connection
  • Fully TIG welded
  • Argon back gassed for pure welds


  • Non Foulers
  • Hardware
  • Gasket Processing takes an additional 7 to 14 business days for ceramic coating.

WARNING: Intended FOR OFF ROAD USE ONLY. RV6® Performance LLC products are sold for off-road use only. All performance modifications and installations are at the customer's own risk. RV6®Performance LLC and Axion Industries LLC hold no responsibility either implied or otherwise for mechanical, electrical, or other failure when using any aftermarket performance products.

Items sold for off-road use only are illegal in many states and provinces and are intended for racing vehicles which may never be used on a public road.   By purchasing any aftermarket performance product, you take full responsibility for any use, and/or misuse of the product and agree that RV6® Performance LLC and Axion Industries LLC hold no responsibility for any consequences, legal, or other, of such use and/or misuse.

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