Turbo and Supercharger Engine Accessories for Audi A4 Vehicles

Forced induction, whether by turbocharger or supercharger, boosts power and torque like nothing else. You feel it not just in your right foot; there’s no mistaking the way HP power pushes you back in your seat when you summon boost. Stock forced-induction setups only begin to tap the performance potential of the engines they feed. USP Motorsports offers a wide array of forced induction accessories that are engineered to take your engine to the next level – and beyond.

Below you’ll find turbo and supercharger accessories and systems from AEM, APR, ATP Turbo, Spulen, USP Motorsports, Eurocode, Fabspeed, Forge Motorsports, Garrett Turbochargers, Go Fast Bits GFB, Integrated Engineering, Neuspeed, Torque Solution. We also offer kits assembled by USP Motorsports with high-quality parts from multiple manufacturers... more

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  • Displaying 1 to 17 (of 17 products)
Brand:
 In Stock 
This item is in stock and will usually ship same day if ordered by 4PM EST.
$97.59
$70.26
SKU#: 3934
MFG# 30-3315

$624.41
$449.57
SKU#: 7200
MFG# 30-3350

Brand:
 In Stock 
This item is in stock and will usually ship same day if ordered by 4PM EST.
$825.25
$631.32
SKU#: 7466
MFG# SNO-320

IE Billet Manual Boost Controller 1/4 Barb IE With 1/4" Barb Fittings
Brand:
$99.99
SKU#: 20364
MFG# IEBAUU9-BK

034 Water/Meth Adapter (Black) - 90 Degree Perfect for installing water/meth nozzles in tight spaces under the hood.
This adapter is only for AEM water/meth kits.
Brand:
 In Stock 
This item is in stock and will usually ship same day if ordered by 4PM EST.
$33.00
SKU#: 33673
MFG# 034-109-1006

APR Dome Badge - Matte Silver Perfect for denoting an APR tuned vehicle
Brand:
 In Stock 
This item is in stock and will usually ship same day if ordered by 4PM EST.
$15.70
SKU#: 34943
MFG# A1000007

APR Dome Badge - Polished Silver Perfect for denoting an APR tuned vehicle
Brand:
 In Stock 
This item is in stock and will usually ship same day if ordered by 4PM EST.
$15.70
SKU#: 34942
MFG# A1000006

APR Dome Badge - Satin Black Perfect for denoting an APR tuned vehicle
Brand:
 In Stock 
This item is in stock and will usually ship same day if ordered by 4PM EST.
$15.70
SKU#: 34944
MFG# A1000008

$79.99
SKU#: 3886
MFG# IEBAVC14

$18.00
SKU#: 8701
MFG# ATP-FLS-060

$495.00
SKU#: 328
MFG# ATP-VVW-182

$495.00
SKU#: 5733
MFG# ATP-VVW-183

Stainless Steel Turbine Discharge Flange Fits GT25R, GT28R, GT28RS, GT3071R-WG
Brand:
$39.00
SKU#: 8700
MFG# ATP-FLS-088

$39.00
SKU#: 8658
MFG# ATP-FLS-037

$23.00
SKU#: 8657
MFG# ATP-FLS-002

  • Displaying 1 to 17 (of 17 products)

Forced induction accessories generate more horsepower, torque and drivability for your Volkswagen or Audi. Our inventory includes accessories for the GLI and the GTI, including models with the 2.0T FSI or TSI engines and the 1.8T, Golf R, the MK7 and TDIs; Audi TT, TTRS, A3, S3, A4, A5, A7 and A8, including Audis with the 1.8T or 2.0 T, 3.0 Six and FSI 4.2L V8; and the Porsche 996 Turbo. There’s no room for generics in forced induction accessories. The accessories we sell are engineered for the engine in your vehicle. These products enhance the performance of a particular engine in a specific model, and are made to fit precisely with durable high-quality fasteners.

You can choose from complete turbocharging kits to individual parts. Some parts have only one purpose: to boost performance. Others do that and dress up your car’s under-hood appearance, with such accessories as silicone boost hoses in red or blue, not just black, and stainless steel connectors. In all cases the parts we sell are engineered to withstand the additional stress and pressures generated by tuned engines.

In addition to complete turbocharger systems and supercharger systems, some of the many forced induction accessories offered are:

  • Blanking plugs to allow catch tanks
  • Blow-off valves
  • Boost gauge fitting kits
  • Boost taps
  • Intake hoses
  • High-flow charge pipes
  • Discharge pipes
  • DV to intake return hoses
  • Performance intake manifolds
  • Turbo ducts
  • Turbo muffler deletes
  • Intercooler hoses
  • Throttle body hoses
  • PCV bypass kits
  • Supercharger pulley upgrades
  • Water methanol injection kits