TOP ECS Products Audi B8/B8.5 S4
ECS loves helping you make your car all it can be, that’s why we’ve put all our top performance parts for your Audi together in one place. This list, compiled by our Audi B8/B8.5 S4 gurus and designed by our fantastic R&D team, is everything you need to outfit your car with all those goodies you’ve wanted for your build. Let’s make your summer even more fun with all the best ECS Performance parts for your Audi.
Top Products from ECS
Audi B8/B8.5 S4 Quattro 3.0T
Rear 2-Piece Brake Rotors - Pair (330x22)
Direct bolt-on replacement - 18% less weight!
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Brand:
ES#:
2681143
Mfg#:
002879ECS01AKT
Carbon Fiber Fog Light Grille Overlay Set - Audi B8.5 A4/S4
Masks the aluminum-look trim strips on the fog light grilles with carbon fiber
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3419105
Mfg#:
022928ECS01KT
This product has been superseded to
ES#4668212
Front Dimpled & Slotted Brake Rotors - Pair (345x30) - (NO LONGER AVAILABLE)
Featuring GEOMET® protective coating
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
2189931
Mfg#:
8K0301MXSGMTLRA
No longer available
Front 2-Piece Tru-Float Scalloped Brake Rotors - Pair (345x30)
Direct bolt-on replacement - 27% less weight!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
2681113
Mfg#:
003523ECS01A01KT
This product has been superseded to
ES#4668213
Front Slotted Brake Rotors - Pair (345x30) - (NO LONGER AVAILABLE)
Featuring GEOMET® protective coating
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
2189933
Mfg#:
8K0301MSLGMTLRA
No longer available
Rear 2-Piece Tru-Float Scalloped Brake Rotors - Pair (330x22) - (NO LONGER AVAILABLE)
Direct bolt-on replacement - 21% less weight!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
2681109
Mfg#:
003523ECS02A02KT
No longer available
Billet Engine Oil Dipstick - Silver anodized
A more durable and aesthetically pleasing addition to your engine bay
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
2960434
Mfg#:
005259ECS01-03
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Availability:
In Stock
In Stock
Rear Lower Control Arm Brace - Audi B8 A4/A5/S4/S5
Provides additional support to the rear lower control arms for flex reduction to enhance your driving experience
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3478040
Mfg#:
008050ECS01KT
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Availability:
Ships on Aug 11, 2026
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Ships on Aug 11, 2026
Wheel Spacer Flush Fit Kit - Black Bolts - Aggressive
Includes spacers & Black bolts to obtain a flush look on your OE 19" 'Peeler' style wheels
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3138548
Mfg#:
003462ECS01KT
Supercharger Inlet Kit - Silicone - Audi B8 S4/S5 3.0T
Wire reinforced silicone smooths the intake tract & hinders collapsing. The ultimate in durability!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3170829
Mfg#:
007344ECS01KT2
This product has been superseded to
ES#4668333
Rear Slotted Brake Rotors - Pair (330x22) - (NO LONGER AVAILABLE)
Featuring GEOMET protective coating.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
2189938
Mfg#:
8K0601CSLGMTLRA
No longer available
Exact-Fit Stainless Steel Clutch Line
Improve clutch pedal feel with this simple, yet dramatic upgrade
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3200644
Mfg#:
017626ECS01
Front & Rear Exact-Fit Stainless Steel Brake Lines - Kit
Complete set of DOT-compliant lines for an improved pedal feel
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Brand:
ES#:
1899278
Mfg#:
ECS41016/63
Billet Engine oil Dipstick - black Anodized
A more durable and aesthetically pleasing addition to your engine bay
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3138234
Mfg#:
005259ECS02-02
Audi B8/B8.5 S4/S5 Carbon Fiber Left Side Engine Bay Cover
Cover up unsightly under hood components with carbon fiber style!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3570284
Mfg#:
023149ECS02KT
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Availability:
Ships on Aug 31, 2026
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Ships on Aug 31, 2026
Carbon Fiber Front Lip Overlay - Audi B8 A4 S-Line / S4
Add a subtle touch of carbon fiber to your front bumper
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3218893
Mfg#:
022693ECS01