Sharpen handling and lock down your Audi B9 or B9.5's chassis by eliminating rear-end slop with this premium billet aluminum subframe insert kit.
Audi A4 Performance Parts & Upgrades
- Braking
- Engine / Drivetrain
- Essentials
- Exhaust
- Exterior
- Interior
- Lighting
- Racing Safety Accessories
- Software / Tuning
- Suspension
- Wheels
- Clearance
The harness adds 4 EV1 style fuel injector connections, 1 low fuel pressure sensor connection, 1 flex fuel sensor connection
Add those new wheels to your vehicle with these new wheel spacers
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Includes everything you need to install spacers on two wheels
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Fits most aftermarket wheels that require conical seat wheel bolts
This product was last offered at the strikethrough price on
06-13-2026
*Sale applies only to ECU with 3 or 4 program purchase.
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This upgrade must be performed at ECS Tuning's facility in Ohio.
Engage the road with precision, confidence and reliability with our ECS Poly Control Arm Bushings!
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Up to VIN 8D-W-012335, split is in the 1999 model year with steel strut mount
This product was last offered at the strikethrough price on
06-13-2026
Add a touch of carbon fiber to your interior center console
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For vehicles up through the 2019 model year only
This product was last offered at the strikethrough price on
06-13-2026
Add a subtle flush look with HPA’s 5mm hubcentric Wheel Spacer Pair - precision CNC machined, anodized black, and ready to fit 57.1mm hub vehicles using your OEM bolts.
Please measure your hub protrusion to ensure it will still make contact with the center of the wheel. See
Replacement hardware kit for your ECS Street Shield
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Increase airflow for your 2.0T or 3.0T equipped B9 A4/S4/Allroad with the 034Motorsport X34 Carbon Fiber Intake Air Scoop!
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Will not fit vehicles with the active grille shutter system, such as B9.5 A4 and allroad.
Better braking performance under all driving conditions
From low-dust daily driving to full race endurance, iSWEEP brake pads deliver precision-tuned compounds that give you the exact bite, control, and fade resistance your driving demands.
Average of 20mm (.7inches) lowering front and rear
Trimming of bumpstops required.
Includes spacers & Polished bolts to obtain a flush look on your OE 18" wheels
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This product was last offered at the strikethrough price on
05-02-2026
Fine tune your stance and improve handling
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MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
07-01-2026
Stiffer bushings allow sway bars to work at their fullest potential