• Carbon Fiber Air Box Kit for A3 Golf Jetta Vento V70 C70
  • Carbon Fiber Air Box Kit for A3 Golf Jetta Vento V70 C70 Default Title
  • Carbon Fiber Air Box Kit for A3 Golf Jetta Vento V70 C70
  • Carbon Fiber Air Box Kit for A3 Golf Jetta Vento V70 C70

Carbon Fiber Air Box Kit for A3 Golf Jetta Vento V70 C70

$325.00
$325.00
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Carbon Fiber CDA Dynamic Air Intake for Audi, VW, and Volvo T5 Engine Families

Who It’s For: This kit is engineered for enthusiasts running the VAG 1.8T 20V and the Volvo Modular Turbo Inline-5 engine families. Whether you are tuning a Golf GTI, an Audi S3, or a high-pressure Volvo T5, this is for the driver who understands that cooler intake charges equal consistent timing and power.

The Problem: The factory plastic airbox in the 1.8T 20V and various TDI platforms is a major source of heat soak. These stock units are designed primarily for sound suppression, using restrictive internal baffles and drawing in turbulent air from the engine bay. This leads to higher Intake Air Temperatures (IATs), causing the ECU to pull timing and reduce boost to protect the engine.

The Solution: The CDA (Carbon Dynamic Airbox) replaces the restrictive factory unit with a genuine carbon fiber housing. Because carbon fiber has extremely low thermal conductivity, it acts as a thermal barrier, insulating the incoming air from the blistering heat of the engine bay. By utilizing a cylindrical design and an internal flow deflector, we create a venturi effect that accelerates airflow directly into the turbo inlet, ensuring your 1.8T 20V or T5 engine breathes denser, oxygen-rich air.

Why This is the Ultimate Upgrade

  • True Thermal Insulation: Genuine carbon fiber construction prevents engine bay heat from warming the intake tract, maintaining lower IATs even during spirited driving.
  • Dynamic Supercharging Effect: The flexible aluminum ducting allows for a true cold-air feed from the front grille, creating a ram-air effect that increases air velocity as vehicle speed rises.
  • Washable High-Flow Element: Features a reusable, high-performance filtration media designed to provide maximum surface area without the pressure drop found in paper filters.

Technical Specifications

Fitment 1996–2010 Audi, VW, Seat, Volvo
Engine Family VAG 1.8T 20V / TDI / Volvo Modular T5
Factory Ratings 90 HP to 241 HP (Application Specific)
Part Numbers CDA-VAG-VOL-CF

Compatibility & OEM Reference

Fits the Following Vehicles:

  • Audi A3 (8L) 1.8 TURBO S3 (225 HP) 99 > 03
  • Audi A3 (8L) 1.9 TDI (115 HP) 96 > 03
  • Audi A3 (8L) 1.9 TDI QUATTRO (130 HP) 96 > 03
  • Audi A3 + CABRIOLET (8P) 2.0 16V TDI / QUATTRO (140 HP) 03 >
  • Audi A3 + CABRIOLET (8P) 2.0 TDI (163 HP) 05 >
  • Audi A3 + CABRIOLET (8P) 2.0 TDI / QUATTRO (136/140/170 HP) 03 >
  • Seat IBIZA III 1.8 T 20V CUPRA (180 HP) 04 > 07
  • Seat IBIZA III 1.8 T 20V FR (150 HP) 04 > 08
  • Seat IBIZA III 1.9 TDI CUPRA (160 HP) 04 > 07
  • Seat IBIZA III 1.9 TDI SPORT/FR (130 HP) 02 > 08
  • Seat LEON I 1.8 T 20V CUPRA R (210 HP) 02 > 06
  • Seat LEON I 1.9 TDI (130 HP) 03 > 06
  • Seat LEON I 1.9 TDI TS/FR (150 HP) 00 > 05
  • Seat LEON II 1.9 TDI (105 HP) 05 >
  • Seat LEON II 2.0 TDI / 16V (140 HP) 05 >
  • VW BORA (A4) 1.8 GTI / 1.8 T (150/180 HP) 97 > 05
  • VW BORA (A4) 1.9 TDI (90/101/110/115/130/150 HP) 97 > 05
  • VW BORA (A4) R32 (241 HP) 02 > 05
  • VW BORA (A5) 1.6 D / 1.9 TDI / 2.0 TDI 05 > 10
  • VW CLÁSICO (A4) 1.9 TDI / R32 00 > 05
  • VW GOLF IV (1J1, 1J5) 1.9 TDI / R32 (130/150/241 HP) 00 > 05
  • VW GOLF V / GOLF PLUS 1.9 TDI / 2.0 TDI (90/105/140 HP) 03 > 09
  • VW JETTA IV (162) 1.9 TDI / R32 (90/101/110/115/130/150/241 HP) 97 > 05
  • VW JETTA V (A5) 1.6 D / 1.9 TDI / 2.0 TDI 05 > 10
  • VW RABBIT V (A5) 1.9 TDI / 2.0 TDI 03 > 08
  • VW SAGITAR (A5) 1.6 D / 1.9 TDI / 2.0 TDI 05 > 10
  • VW VENTO (A5) 1.6 D / 1.9 TDI / 2.0 TDI 05 > 10
  • Volvo C 70 I 2.5 T5 (220 HP) 98 > 02
  • Volvo V 70 2.3 T5 (239 HP) 97 > 00

Interchange Part Numbers:

8L, 8P, 1J1, 1J5, 1K1, 1K5, AJ5, 5M1, 521, 162, A4, A5, 1.8T, 20V, TDI, T5, VR6, R32

The Performance Promise

Buy with confidence. This CDA system is the choice for builds where performance consistency is non-negotiable. Backed by real automotive experts and fast shipping to get your project back on the road or track.

Fitment

Make

AudiVolkswagenVolvo

Engine Size

 -

Year

 -

Installation & Tools

The Wrench Time

  • Estimated Time: 45-60 Minutes
  • Difficulty: 3/10 - Straightforward bolt-on, but requires careful handling of aged, heat-cycled plastics and sensitive electronics.

Tools You Will Need

  • 10mm socket and ratchet (battery terminal & OEM airbox mounting hardware)
  • Flathead screwdriver or 7mm nut driver (hose clamps)
  • T20 & T25 Torx drivers (MAF housing screws and duct retainers)
  • Hose clamp pliers or channel locks (OEM spring-band clamps)
  • Automotive panel popper or pick tool (MAF sensor electrical connector tab)
Mechanic’s Pro Tip (The "Gotcha"):
On European platforms like the Audi Volkswagen Volvo A3 Golf Jetta V70, underhood thermal cycling turns factory plastic connections glass-brittle. The #1 forum headache across both VAG and Volvo P80/P2 chassis is snapping the locking tab on the MAF harness connector or fracturing the vacuum/breather barb during disassembly. Do not pry aggressively. Slide the connector locking tab back gently, press down firmly until you hear an audible click, and slide the plug off by hand. If you encounter Secondary Air Injection (SAI) fittings, squeeze the ribbed ring symmetrically—never pry with a screwdriver.

Phase 1: Removing the Factory Part

  1. Disconnect the Battery: Always start by disconnecting the negative battery terminal using a 10mm wrench to cut power to the ECU and eliminate voltage spikes across the intake sensors.
  2. Disconnect the MAF Sensor: Locate the Mass Air Flow (MAF) sensor harness on your Audi Volkswagen Volvo A3 Golf Jetta V70. Carefully release the locking slider using a pick tool or your thumb, press the tab inward, and pull the plug straight off. Stow the wiring safely out of the work area.
  3. Detach Vacuum and Breather Lines: Using hose clamp pliers or a flathead screwdriver, release the hose clamps securing the crankcase PCV or SAI lines to the intake tract. Work the rubber hoses off the plastic fittings slowly to prevent shearing the nipples.
  4. Loosen the Inlet Pipe: Loosen the OEM worm-drive or spring clamp securing the intake tube to the factory airbox using a 7mm nut driver or flathead screwdriver. Slide the tube free from the airbox neck.
  5. Extract the Factory Airbox: Remove any chassis-securing bolts using a 10mm socket or T25 Torx driver. Disengage the front fresh-air snorkel, then pull the lower airbox housing straight up to pop it out of the rubber chassis grommets. Inspect the rubber grommets; if they pulled out with the box, retrieve them and seat them back into the vehicle sheet metal.

Phase 2: Installing the Carbon Fiber Air Box Kit

  1. Transfer the Factory MAF Housing/Sensor: If your configuration requires the OEM sensor, use a T20 Torx driver to remove the sensor element from the factory housing. Handle the sensor exclusively by the plastic flange—never touch the delicate heated wire or hot-film element. Transfer it into the adapter neck of the Carbon Fiber Air Box Kit and snug the fasteners down firmly (do not overtighten into aluminum or composite threads).
  2. Seat the Carbon Fiber Air Box: Lower the carbon fiber airbox assembly into the engine bay, lining up the intake bracket with the vehicle’s factory mounting grommets or chassis holes. Secure it loosely using the supplied brackets and your 10mm socket to allow room for alignment adjustments.
  3. Couplers and Clamp Installation: Slip the high-temp silicone couplers onto the intake tract and the airbox outlet. Secure them with the provided stainless T-bolt or worm clamps using a 7mm nut driver or flathead screwdriver. Route the fresh-air inlet duct into the factory front radiator core support opening to ensure dedicated cold-air flow.
  4. Torque Hardware & Reconnect Sensor: Align the entire assembly so the carbon fiber housing does not rub against the brake master cylinder, battery tray, or coolant lines. Tighten all mounting hardware with your 10mm socket, firm up all hose clamps, and snap the MAF sensor electrical harness back into place until it audibly clicks locked.
  5. Reconnection & ECU Calibration Idle: Reconnect the negative battery terminal with your 10mm wrench. Start the engine, but DO NOT touch the gas pedal for at least 20 to 30 seconds. Allow the ECU to read baseline closed-loop sensor voltage and stabilize idle trims with the increased airflow before driving. Check for any vacuum leaks or intake whistling.

Disclaimer: This is a general guide provided for the Audi Volkswagen Volvo A3 Golf Jetta V70. Always refer to your factory service manual for exact torque specifications and safety procedures.

Warranty

All products are backed by our Limited Lifetime Warranty. We stand by our quality. [See terms]
Carbon Fiber Air Box Kit for A3 Golf Jetta Vento V70 C70

$325.00