• Exhaust - Downpipe - High-Flow Cat (034) for B5-B6 A4 1.8T
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Exhaust - Downpipe - High-Flow Cat (034) for B5-B6 A4 1.8T Zoom

Exhaust - Downpipe - High-Flow Cat (034) for B5-B6 A4 1.8T

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SKU: 034-105-4021
$390.00

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034Motorsport High-Flow Catalytic Converters are designed to replace the restrictive OE catalytic converter, and allow for quicker spool while increasing horsepower and torque throughout the powerband.

We construct them from 304 stainless steel tubing, and utilize a high-performance 250-cell stainless-steel-matrix cat. They feature CNC machined flanges to prevent warping and expansion, factory-correct exhaust hanger location, and 2 oxygen sensor bungs in the proper locations for the factory sensors. Full 3" tubing is used throughout.

Complete drop-in upgrade; will bolt up to any stock/stock-fit turbo and stock/stock-fit exhaust. Professionally assembled in-house, TIG-welded and backpurged.
- Full 304 stainless construction.
- TIG welded and backpurged.
- CNC machined flanges.
- Factory correct oxygen sensor and exhaust hanger placement.
- Dyno proven horsepower and torque gains! (We have seen gains of over 26WTQ and 15WHP on our dyno on stock turbo tunes.)
- Smog tested.


FITMENT: Direct bolt-in for OEM cat-back exhaust, or aftermarket cat-back exhaust systems designed to fit with the OEM catalytic converter. Will fit 4Motion/quattro and FWD B5/B6 Audi A4 1.8T, and B5/B5.5 Volkswagen Passat 1.8T models equipped with Manual, Tiptronic, or CVT transmissions. Please select your transmission type from the dropdown below.


OPTIONS:
Gasket & Hardware Kits **NOW INCLUDED!!!** - We have pieced together all of the necessary parts to make swapping out your factory catalytic converter a breeze. This kit includes turbo outlet and cat-to-midpipe gaskets, as well as all necessary nuts and bolts for a complete install.

Oxygen Sensor Spacer **NOW SOLD SEPARATELY**- This spaces out the secondary (rear) O2 sensor to remove MIL or CEL issues caused by removing the factory catalytic converter. Professionally manufactured from stainless steel, not cobbled together by hand like some other products on the market. Spacer will add approximately 1.7" to the height of the sensor. 034Motorsport oxygen sensor spacers feature a flare seal seat, so no sealing washer or gasket is required.


Select your transmission type from the dropdown below.


FOR OFFROAD USE ONLY

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Notice:

Off-road use ONLY: THIS PRODUCT IS FOR RACING COMPETITION ONLY AND IS NOT LEGAL FOR USE IN HIGHWAY OR STREET VEHICLES OR OTHER NON-RACING COMPETITION OFF-ROAD VEHICLES. BY PURCHASING THIS PRODUCT YOU ACKNOWLEDGE ITS INTENDED USE.

This product fits the following vehicles:
Make Model Chassis Engine
Audi A4 B5 (1996-2001) 1.8t
Audi A4 B6 (2002-2005) 1.8t
Volkswagen Passat B5 (1998-2005) 1.8t
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You're reviewing: Exhaust - Downpipe - High-Flow Cat (034) for B5-B6 A4 1.8T
Off-road Use

By Purchasing any Off-Road use ONLY products from JH Motorsports, Inc. I acknowledge and understand the following disclosure. (This notice is located at the bottom of the page description of affected products on our website.)

Vehicle Code § 27156:
(b) No person shall operate or leave standing upon a highway a motor vehicle that is required to be equipped with a motor vehicle pollution control device under Part 5 (commencing with Section 43000) of Division 26 of the Health and Safety Code or any other certified motor vehicle pollution control device required by any other state law or any rule or regulation adopted pursuant to that law, or required to be equipped with a motor vehicle pollution control device pursuant to the National Emission Standards Act (42 U.S.C. Secs. 7521 to 7550, inclusive) and the standards and regulations adopted pursuant to that federal act, unless the motor vehicle is equipped with the required motor vehicle pollution control device that is correctly installed and in operating condition. No person shall disconnect, modify, or alter any such required device.
(c) No person shall install, sell, offer for sale, or advertise any device, apparatus, or mechanism intended for use with, or as a part of, a required motor vehicle pollution control device or system that alters or modifies the original design or performance of the motor vehicle pollution control device or system.

Health and Safety Code § 43000:
43001. The provisions of this part shall not apply to:
(a) Racing vehicles.

As the aforementioned code sections outline, it is against the law to operate or use a vehicle on public streets or highways with modified, altered, or disconnected motor vehicle pollution control devices. This may include but is not limited to, Evaporative Fuel Controls, Catalysts, DPF, PTOX, PCV Systems, Exhaust Gas Recirculation Systems, Oxygen Sensors, Thermostatic Air Cleaners, Air Intake Systems, Fuel Injectors, Regulators, Adjustable Cam Gears, ECU Programming, Mapping, or other Computer Modifications. Air Pumps, Air Injection, Timing, and any other Emission System Modification(s).

Purchaser acknowledges and certifies to JH Motorsports Inc., that Purchasers vehicle will only be used for racing applications or off road vehicle use only. Purchaser requests these modifications for the purpose of enhancing the vehicle for competitive Racing Applications and will not use this vehicle on public streets or highways. Purchaser agrees to indemnify JH Motorsports Inc., all employees, officers, owners, and subsidiaries for any civil or criminal liability arising out of use of Purchasers vehicle on public streets or highways as Purchaser has been duly notified of the laws and regulations regarding disconnecting, alteration, or modification of a vehicle’s pollution control devices. Purchaser understands and has been advised the driving of a vehicle on public streets or highways could result in criminal or civil penalties.

Prop 65

Warning: This product may contain a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm.

Learn More: www.p65warnings.ca.gov

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Company Info

Call Us:
209-968-0077

E-Mail Us:
sales@jhmotorsports.com

Find Us:
14150 S. Harlan Rd. Lathrop, CA 95330
General Infomation
© 2006 to present day JH Motorsports, Inc. All Rights Reserved.

JH Motorsports is not affiliated with or endorsed by Audi AG, Audi of America, Volkswagen AG, or Volkswagen of American or any other car company mentioned or whose logos are displayed in these web pages or our store. Audi®, Quattro®, Avant®, A4®, S4®, A6®, RS4®, RS6®, Allroad®, TT®, and Tiptronic® are trademarks of Audi AG. Volkswagen®, VW®, Golf®, Jetta®, Passat® and Beetle® are trademarks of Volkswagen AG. While we try to keep everything current, JH Motorsports is not responsible for errors in pricing on this web site. All prices are in US Dollars.

Some of these modifications and or parts are intended for off-road use only and may violate Federal or your State emissions standards. Also, end user assumes all risk with product performance and installation. JH Motorsports is not responsible for any bodily or mechanical harm, etc. as a result of use or misuse of any products.