|
APR's B6 & B7 S4 Exhaust is
offered as both a full or as a catback system. The catback system is a
complete stainless steel, mandrel bent, cat-back exhaust. The exhaust
is a dual 2.25" system that begins at the factory downpipes and
continues to an innovative centre muffler. The exhaust then splits and
each mandrel bent pipes goes to its own muffler with a 3.5" (90mm)
bevel-cut, round tip.
This exhaust is very quiet and
simply changes the tone of the exhaust to a deep, unobtrusive sound.
With TIG welding, fully stainless construction, and CNC'ed hangers, you
will not find a higher quality system on the market.
A set of downpipes is also available for the 6spd and now the tiptronic
S4's as well. This system replaces the 4-cat factory
setup with a pair of metal matrix catalysts. APR downpipes will only
fit with an APR catback system. In testing, a full APR exhaust produces
gains of 19kw and 47nm across most of the engine powerband. Throttle
response is also greatly improved.
 Cat-Back
System |
| Year
|
Engine
|
Transmission
|
Drivetrain
|
Part
Number |
Price
|
| 2004 |
4.2 |
ALL |
Quattro |
CB100017 |
$2750.00 |
| 2005 |
4.2 |
ALL |
Quattro |
CB100017 |
$2750.00 |
| 2006 |
4.2 |
ALL |
Quattro |
CB100031 |
$2750.00 |
| 2007 |
4.2 |
ALL |
Quattro |
CB100031 |
$2750.00 |
| Downpipes |
| Year
|
Engine
|
Transmission
|
Drivetrain
|
Part
Number |
Price
|
| 2004 |
4.2 |
6spd |
Quattro |
CD100008 |
$2050.00 |
| 2005 |
4.2 |
6spd |
Quattro |
CD100008 |
$2050.00 |
| 2006 |
4.2 |
6spd |
Quattro |
CD100008 |
$2050.00 |
| 2007 |
4.2 |
6spd |
Quattro |
CD100008 |
$2050.00 |
| 2004 |
4.2 |
6spd |
Quattro |
CD100016 |
$2050.00 |
| 2005 |
4.2 |
6spd |
Quattro |
CD100016 |
$2050.00 |
| 2006 |
4.2 |
6spd |
Quattro |
CD100016 |
$2050.00 |
| 2007 |
4.2 |
6spd |
Quattro |
CD100016 |
$2050.00 |
| Full
System |
| Year
|
Engine
|
Transmission
|
Drivetrain
|
Part
Number |
Price
|
| 2004 |
4.2 |
6spd |
Quattro |
FE100012 |
$3999.00 |
| 2005 |
4.2 |
6spd |
Quattro |
FE100012 |
$3999.00 |
| 2006 |
4.2 |
6spd |
Quattro |
FE100033 |
$3999.00 |
| 2007 |
4.2 |
6spd |
Quattro |
FE100033 |
$3999.00 |
| 2004 |
4.2 |
6spd |
Quattro |
FE100032 |
$3999.00 |
| 2005 |
4.2 |
6spd |
Quattro |
FE100032 |
$3999.00 |
| 2006 |
4.2 |
6spd |
Quattro |
FE100034 |
$3999.00 |
| 2007 |
4.2 |
6spd |
Quattro |
FE100034 |
$3999.00 |
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