Milltek Non-Resonated Cat-Back Exhaust | Audi B9 S4 S5 - Polished Tips
SKU: SSXAU659
Parts
- MSAU693: LH Downpipe - MSAU693
- MSAU694: RH Downpipe - MSAU694
- MSAU698: Connecting Pipe - MSAU698
- MSAU699: LH Rear Silencer with Valve - MSAU699
- MSAU700: RH Rear Silencer with Valve - MSAU700
- MSAU701: LH Mounting Bracket - MSAU701
- MSAU702: RH Mounting Bracket - MSAU702
- MSTIP161: Polished Jet (oval) 104 x 80 Exhaust Tip - MSTIP161
- MSAU696: LH Front Silencer Rep Pipe - MSAU696
- MSAU697: RH Front Silencer Rep Pipe - MSAU697
Documents
Description
Milltek 2.50" Non-Resonated Cat-Back Exhaust System for Audi B9 S4 and S5 (non-sport differential models). Direct factory fitment replacement using OEM hangers and mounting points-no modification required.
Hand-finished T304L stainless steel construction with mandrel-bent piping engineered to eliminate factory resonance chambers. Quad polished oval trim finishes. 2.50" (63.5mm) bore diameter optimized for improved exhaust scavenging and full-throttle character without secondary silencers.
Fitment
- Audi S4 B9 3.0L TFSI (EA888 Gen 3H) Saloon/Avant, non-sport differential models, 2016 and later
- Audi S5 B9 3.0L TFSI (EA888 Gen 3H) Sportback, non-sport differential models, 2017 and later
Cat-back fitment: replaces factory cat-back section only. Factory turbocharger and downpipe remain in use. Requires 3-point hanger installation at factory points.
T304L hand-finished construction resists corrosion under continuous track use and daily driving alike-a material and process standard competitors reserve for premium tier systems.
Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.
Key Facts
| Pipe Diameter | 63.50 |
| 1 to 1.5 hours to fit (including removing OE system) | |
| Race Product | No |
| EMarked | No |
System Fitment List
Shipping Information
This system ships in 2 boxes.
Similar Products
EC

Milltek Resonated Cat-Back Exhaust | Audi S4 S5 B9
SSXAU640MP
Total
$4120.57
$3337.66
$4120.57
$3337.66

Milltek Non-Resonated Cat-Back Exhaust | Audi S4 S5 B9
SSXAU650MP
Total
$3507.46
$2841.04
$3507.46
$2841.04

RacingLine Door Decals Long / Silver / A4 / A5 / A6 / Passat / Arteon etc
VWR800002-SVR
Total
$59.79
$48.43
$59.79
$48.43

RacingLine Billet Fuel Filler Cap / Bayonet Fitting
VWR19G711
Total
$129.29
$104.72
$129.29
$104.72

RacingLine Wheel Stud / Individual 80mm
VWR630010
Total
$3.23
$2.61
$3.23
$2.61
Best Sellers

Milltek Road+ Cat-Back Exhaust | VW Golf MK7.5 GTI
SSXVW470MP
Total
$1735.54
$1405.79
$1735.54
$1405.79

Milltek Race 80mm Cat-Back Exhaust | VW Golf MK8 GTI
SSXVW681MP
Total
$1448.78
$1173.51
$1448.78
$1173.51
MO

Milltek Secondary Catalyst Bypass (Fits to OE System Only) | Porsche Cayenne 958 Turbo 4.8 V8 (Pre-Facelift)
SSXPO182
Total
$492.20
$398.68
$492.20
$398.68
MO

Milltek Valved & Non-Resonated Cat-Back Exhaust | Toyota GR Corolla 1.6T
SSXTY151MP
Total
$4272.51
$3460.73
$4272.51
$3460.73
EC

Milltek OPF/GPF Back Exhaust | Land Rover Defender 130 P300 P400e - Burnt Titanium Tips
SSXLR217
Total
$3710.76
$3005.71
$3710.76
$3005.71

Milltek Secondary Catalyst Bypass (Fits to OE System Only) | Porsche 958 Cayenne S 4.8 V8 (Non-Turbo)
SSXPO204
Total
$492.20
$398.68
$492.20
$398.68

Milltek Secondary Catalyst Bypass Exhaust | Ford Maverick 2.0T AWD
SSXFD547MP
Total
$202.98
$164.41
$202.98
$164.41

Milltek Secondary Cat-Back with Side Exit | Ford Maverick 2.0T AWD
SSXFD545MP
Total
$888.51
$719.69
$888.51
$719.69

Milltek Resonated Cat-Back Exhaust | VW Golf MK7 Alltrack 1.8TSI-Titanium Tips
SSXVW754
Total
$2111.11
$1710.00
$2111.11
$1710.00

Milltek HJS Hi-Flow Sports Cat (w/ Heat Wrap) | Chevrolet C8 Corvette Z06
SSXCH111
Total
$3321.28
$2690.24
$3321.28
$2690.24
