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Audi S4 3.0 Turbo V6 B9 - Saloon/Sedan & Avant (Non Sport Diff Models)

Audi S4 3.0 Turbo V6 B9 - Saloon/Sedan & Avant (Non Sport Diff Models)

2016 and Later

Active Valve Control

System Number: SSXAU677

Consists of:

Tailpipe Style:

1 x Active Valve Control System

Pipe Ø: 2.50" (63.50mm) *

System Photo(s):

HJS Tuning ECE Downpipes

Fits with OE and Milltek Sport Cat back Systems (EC Approved)

This product is:

EC-Approved

System Number: SSXAU725

Consists of:

Tailpipe Style:

1 x HJS ECE Downpipe Euro 6 200CPSI

Pipe Ø: 2.50" (63.50mm) *

System Photo(s):

Hi-Flow Sports Cat and Downpipe

200 Cell HJS High Flow Sport Cat, fits with OE and Milltek Sport Cat back Systems

System Number: SSXAU673

Consists of:

Tailpipe Style:

1 x High Flow Cat Assembly

Pipe Ø: 2.50" (63.50mm) *

Cat Replacement Pipe

Cat Bypass, fits with OE and Milltek Sport Cat back Systems

This product is:

Race/Track Only

System Number: SSXAU674

Consists of:

Tailpipe Style:

1 x Cat Bypass Assmbly

Pipe Ø: 2.50" (63.50mm) *

Cat-back

Cat Back Non-Resonated (Louder) with Quad Cerakote Black Oval Trims

System Number: SSXAU656

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x LH Front Silencer Rep Pipe

1 x RH Front Silencer Rep Pipe

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x Cerakote Black Velvet Oval Tips

Pipe Ø: 2.50" (63.50mm) *

System Photo(s):

Cat-back

Cat Back Non-Resonated (Louder) with Quad GT-100 Burnt Titanium Trims

System Number: SSXAU653

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x LH Front Silencer Rep Pipe

1 x RH Front Silencer Rep Pipe

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x Burnt Titanium GT-100 Trims

Quad 100mm GT100

Pipe Ø: 2.50" (63.50mm) *

System Photo(s):

Cat-back

Cat Back Non-Resonated (Louder) with Quad GT-100 Cerakote Black Trims

System Number: SSXAU651

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x LH Front Silencer Rep Pipe

1 x RH Front Silencer Rep Pipe

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x Cerakote Black Tips

Quad 100mm GT100

Pipe Ø: 2.50" (63.50mm) *

System Photo(s):

Cat-back

Cat Back Non-Resonated (Louder) with Quad GT-100 Polished Trims

System Number: SSXAU650

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x LH Front Silencer Rep Pipe

1 x RH Front Silencer Rep Pipe

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x Polished Tips

Quad 100mm GT100

Pipe Ø: 2.50" (63.50mm) *

Cat-back

Cat Back Non-Resonated (Louder) with Quad GT-100 Titanium Trims

System Number: SSXAU652

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x LH Front Silencer Rep Pipe

1 x RH Front Silencer Rep Pipe

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x Titanium Tips

Quad 100mm GT100

Pipe Ø: 2.50" (63.50mm) *

System Photo(s):

Cat-back

Cat Back Non-Resonated (Louder) with Quad GT-90 Burnt Titanium Trims

System Number: SSXAU654

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x LH Front Silencer Rep Pipe

1 x RH Front Silencer Rep Pipe

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x 90mm Burnt Titanium Trims

Quad 90mm GT90

Pipe Ø: 2.50" (63.50mm) *

System Photo(s):

Cat-back

Cat Back Non-Resonated (Louder) with Quad GT-90 Cerakote Black Trims

System Number: SSXAU658

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x LH Front Silencer Rep Pipe

1 x RH Front Silencer Rep Pipe

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x Cerakote Black Tip Assembly

Quad 90mm GT90

Pipe Ø: 2.50" (63.50mm) *

System Photo(s):

Cat-back

Cat Back Non-Resonated (Louder) with Quad GT-90 Polished Trims

System Number: SSXAU655

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x LH Front Silencer Rep Pipe

1 x RH Front Silencer Rep Pipe

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x Polished Tip Assembly

Quad 90mm GT90

Pipe Ø: 2.50" (63.50mm) *

System Photo(s):

Cat-back

Cat Back Non-Resonated (Louder) with Quad GT-90 Titanium Trims

System Number: SSXAU657

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x LH Front Silencer Rep Pipe

1 x RH Front Silencer Rep Pipe

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x Titanium Tip Assembly

Quad 90mm GT90

Pipe Ø: 2.50" (63.50mm) *

System Photo(s):

Cat-back

Cat Back Non-Resonated (Louder) with Quad JET-100 Carbon Trims

System Number: SSXAU724

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x LH Front Silencer Rep Pipe

1 x RH Front Silencer Rep Pipe

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x Carbon Jet-100 Trims (To Fit 63.5mm OD Outlets)

102 Jet

Pipe Ø: 2.50" (63.50mm) *

Cat-back

Cat Back Non-Resonated (Louder) with Quad Polished Oval Trims

System Number: SSXAU659

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x LH Front Silencer Rep Pipe

1 x RH Front Silencer Rep Pipe

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x Polished Oval Tips

Pipe Ø: 2.50" (63.50mm) *

System Photo(s):

Cat-back

Cat Back Resonated with Quad GT-100 Cerakote Black Trims EC Approved

This product is:

EC-Approved

System Number: SSXAU641

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x Front Silencer

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x Cerakote Black Tips

Quad 100mm GT100

Pipe Ø: 2.50" (63.50mm) *

System Photo(s):

Cat-back

Cat Back Resonated with Quad Cerakote Black Oval Trims EC Approved

This product is:

EC-Approved

System Number: SSXAU649

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x Front Silencer

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x Cerakote Black Velvet Oval Tips

Pipe Ø: 2.50" (63.50mm) *

System Photo(s):

Cat-back

Cat Back Resonated with Quad GT-100 Burnt Titanium Trims EC Approved

This product is:

EC-Approved

System Number: SSXAU643

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x Front Silencer

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x Burnt Titanium GT-100 Trims

Quad 100mm GT100

Pipe Ø: 2.50" (63.50mm) *

System Photo(s):

Cat-back

Cat Back Resonated with Quad GT-100 Polished Trims EC Approved

This product is:

EC-Approved

System Number: SSXAU640

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x Front Silencer

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x Polished Tips

Quad 100mm GT100

Pipe Ø: 2.50" (63.50mm) *

Cat-back

Cat Back Resonated with Quad GT-100 Titanium Trims EC Approved

This product is:

EC-Approved

System Number: SSXAU642

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x Front Silencer

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x Titanium Tips

Quad 100mm GT100

Pipe Ø: 2.50" (63.50mm) *

System Photo(s):

Cat-back

Cat Back Resonated with Quad GT-90 Burnt Titanium Trims EC Approved

This product is:

EC-Approved

System Number: SSXAU647

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x Front Silencer

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x 90mm Burnt Titanium Trims

Quad 90mm GT90

Pipe Ø: 2.50" (63.50mm) *

System Photo(s):

Cat-back

Cat Back Resonated with Quad GT-90 Cerakote Black Trims EC Approved

This product is:

EC-Approved

System Number: SSXAU645

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x Front Silencer

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x Cerakote Black Tip Assembly

Quad 90mm GT90

Pipe Ø: 2.50" (63.50mm) *

System Photo(s):

Cat-back

Cat Back Resonated with Quad GT-90 Polished Trims EC Approved

This product is:

EC-Approved

System Number: SSXAU644

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x Front Silencer

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x Polished Tip Assembly

Quad 90mm GT90

Pipe Ø: 2.50" (63.50mm) *

System Photo(s):

Cat-back

Cat Back Resonated with Quad GT-90 Titanium Trims EC Approved

This product is:

EC-Approved

System Number: SSXAU646

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x Front Silencer

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x Titanium Tip Assembly

Quad 90mm GT90

Pipe Ø: 2.50" (63.50mm) *

System Photo(s):

Cat-back

Cat Back Resonated with Quad JET-100 Carbon Trims (EC Approval Coming Soon)

This product is:

EC-Approved

System Number: SSXAU723

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x Front Silencer

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x Carbon Jet-100 Trims (To Fit 63.5mm OD Outlets)

102 Jet

Pipe Ø: 2.50" (63.50mm) *

Cat-back

Cat Back Resonated with Quad Polished Oval Trims EC Approved

This product is:

EC-Approved

System Number: SSXAU648

Consists of:

Tailpipe Style:

1 x LH Downpipe

1 x RH Downpipe

1 x Front Silencer

1 x Connecting Pipe Assembly

1 x LH Rear Silencer with Valve {Reuses motor from OE system}

1 x RH Rear Silencer with Valve {Reuses motor from OE system}

1 x LH Mounting Bracket

1 x RH Mounting Bracket

4 x Polished Oval Tips

Pipe Ø: 2.50" (63.50mm) *

System Photo(s):

* Pipe sizes may vary from part-to-part. Pipe diameters are indicative of the system as a whole and do not necessarily mean every part is of a uniform size.