Exhaust Downpipes for Audi S4 Vehicles

A free-breathing engine churns out more horsepower and torque, but don’t make the mistake of thinking it depends solely on better air intake. To breathe freely and meet its true potential, an engine also needs to freely expel exhaust gases coming from the combustion chambers. USP Motorsports makes available high-flow downpipes and other exhaust components from top manufacturers to improve exhaust flow.

Below find exhausts from manufacturers including 42 Draft Designs, APR, Assembled by USP, ATP Turbo, APR, B&B Exhaust, Corsa Exhaust, Eurocode, Magnaflow, Milltek, Mishimoto, Neuspeed, OEM Volkswagen/Audi, Racingline, Torque Solution, USP Motorsports and Victor Reinz... more

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034 Stainless Steel Racing Catalyst Downpipe For Audi B9 S4/S5 Increased Horsepower And Torque Throughout The Powerband
Brand:
$1643.00
SKU#: 27258
MFG# 034-105-4045

$1099.99 $989.99
SKU#: 38902
MFG# IEEXCK3

Brand:
 In Stock 
This item is in stock and will usually ship same day if ordered by 4PM EST.
$0.99
SKU#: 5242
MFG# M8x1.25C

Brand:
 In Stock 
This item is in stock and will usually ship same day if ordered by 4PM EST.
$2.99
SKU#: 5691
MFG# N 044 520 3

Brand:
 In Stock 
This item is in stock and will usually ship same day if ordered by 4PM EST.
$0.79
SKU#: 5247
MFG# M10x1.5Nut

Installing exhaust downpipes takes no special tools. You can bolt them on yourself, sometimes with help from a bud or two, or hire a mechanic. Pipes ship with proper connectors, including gaskets where needed, nuts and bolts. All are made to match up to stock pipes and connection points. 

Some feature full TIG welding for strength and stainless steel for durability. You’ll get not only more power and response, but also a sweeter exhaust note. Choose from downpipe-catless, downpipe-catted, valueline pipe, heat wraps, gaskets for pipes and manifolds, exhaust studs, nuts, bolts, hangers and clamps.

Engines for which we carry downpipes, high-flow catalysts include the VW/Audi 1.8T and 2.0T (FSI and TSI); VW 2.5L and VR6; and Audi 3.2L Six, and 4.0L and 4.2L V8; Acura 2.0L Type S; and Fiat 1.4L, including turbos. Models covered include the VW GTI (including Mk7), Golf, Golf R, Golf R32, Jetta, CC and Passat; and Audi A3 (front- and all-wheel-drive), S3, A4, S4 (manual and automatic), A5, S7, RS7, S8, R8 and TTRS; Acura RSX Type S; and Fiat 500, including Abarth.