B9 S4 (2018-present)

Milltek SSXAU704 Cat-back Exhaust Audi B9 S4 and S5 Sportback

Milltek Sport

Milltek SSXAU704 Cat-back Exhaust Audi B9 S4 and S5 Sportback (Sport Diff Models Only and Without Brace Bars)

$3,255.00

Milltek SSXAU700 Cat-back Exhaust Audi B9 S4 and S5 Sportback

Milltek Sport

Milltek SSXAU700 Cat-back Exhaust Audi B9 S4 and S5 Sportback (Sport Diff Models Only and Without Brace Bars)

$3,075.00

Milltek SSXAU659 Cat-back Exhaust Audi B9 S4 and S5 Sportback

Milltek Sport

Milltek SSXAU659 Cat-back Exhaust Audi B9 S4 and S5 Sportback (Non Sport Diff Models)

$3,255.00

Milltek SSXAU655 Cat-back Exhaust Audi B9 S4 and S5 Sportback

Milltek Sport

Milltek SSXAU655 Cat-back Exhaust Audi B9 S4 and S5 Sportback (Non Sport Diff Models)

$3,083.00

Milltek SSXAU650 Cat-back Exhaust Audi B9 S4 and S5 Sportback

Milltek Sport

Milltek SSXAU650 Cat-back Exhaust Audi B9 S4 and S5 Sportback (Non Sport Diff Models)

$3,075.00

AWE Tuning 3010-43054 Catback Quad Tip Touring Exhaust Audi B9 S4

AWE Tuning

AWE Tuning 3010-43054 Cat-back Quad Tip Touring Exhaust Audi B9 S4

$2,678.95 $2,545.00

AWE Tuning 3010-42056 Catback Quad Tip Touring Exhaust Audi B9 S4

AWE Tuning

AWE Tuning 3010-42056 Cat-back Quad Tip Touring Exhaust Audi B9 S4

As low as $2,768.42

Milltek SSXAU651 Catback Quad Tip Valved Race Exhaust Audi B9 S4 and S5 Non-Sport Diff

Milltek Sport

Milltek SSXAU701 Cat-back Quad Tip Valved Race Exhaust Audi B9 S4 and S5 Sport Diff

$3,075.00

Milltek SSXAU651 Catback Quad Tip Valved Race Exhaust Audi B9 S4 and S5 Non-Sport Diff

Milltek Sport

Milltek SSXAU651 Cat-back Quad Tip Valved Race Exhaust Audi B9 S4 and S5 Non-Sport Diff

$3,075.00