Fittings

Whether you’re putting together a custom catch can setup, adding a boost reference, replacing brittle factory breather components, or sourcing the right AN fitting for your build, this collection brings everything together in one place. From coolant hose fittings and boost taps to breather solutions and conversion fittings, these parts are designed to make custom plumbing on the Audi 3.0T cleaner, simpler, and more reliable.

Filters
Vorsprung Autowerk billet straight fitting for 3/4 inch barb hose, durable metal connector for automotive fluid lines.

Billet Straight Fitting 3/4″ Barb Hose

Regular price $9.99
Sale price $9.99 Regular price
Unit price
Precision-engineered billet straight fitting designed to connect 3/4″ barb hoses in a direct line for...
Vorsprung Autowerk billet T fitting with 3/4 inch barb hose connectors for automotive fluid lines.

Billet T Fitting 3/4″ Barb Hose

Regular price $12.99
Sale price $12.99 Regular price
Unit price
Precision-engineered billet T fitting designed to combine or split three 3/4″ barb hoses in a...
Vorsprung Autowerk billet Y 3-way fitting with 3/4 inch barb hose connectors for automotive fluid systems.

Billet Y 3-way Fitting 3/4″ Barb Hose

Regular price $12.99
Sale price $12.99 Regular price
Unit price
Precision-engineered billet Y 3-way fitting designed to split or combine 3/4″ barb hoses for versatile...
Vorsprung Autowerk billet 90-degree fitting with 3/4 inch barb hose connection for automotive use.

Billet 90 Fitting 3/4″ Barb Hose

Regular price $12.99
Sale price $12.99 Regular price
Unit price
Precision-engineered billet 90-degree fitting designed to redirect 3/4″ barb hoses at a right angle for...
Vorsprung Autowerk billet PCV breather quick connect for 3.0 valve cover, 19mm to 10AN male, 90-degree fitting for Audi, BMW, Lamborghini, Toyota

Billet PCV Breather Quick Connect (3.0 Valve Cover) 19MM Male To 10AN Male 90Deg, for Audi, BMW, Lamborghini, Toyota

Regular price $44.99
Sale price $44.99 Regular price
Unit price
Billet PCV Breather Fitting for Audi 3.0T Upgrade the weak points in your Audi 3.0T...
Photo - Primary

Nitrous Express Nitrous Flo-Thru Manifold (4AN) Swivel

Regular price $44.95
Sale price $44.95 Regular price
Unit price
This billet aluminum manifold swivels on one end which allows you to attach the manifold...
Photo - Primary

Nitrous Express 3AN x 1/8 NPT Straight

Regular price $25.95
Sale price $25.95 Regular price
Unit price
Nitrous Express 3AN x 1/8 NPT Straight
Photo - Primary

Nitrous Express 4AN x 1/8 NPT Straight

Regular price $25.95
Sale price $25.95 Regular price
Unit price
Nitrous Express 4AN x 1/8 NPT Straight
Photo - Primary

Nitrous Express 1/8NPT x 3AN x 3AN Billet Pure-Flo Y Fitting - Black

Regular price $53.95
Sale price $53.95 Regular price
Unit price
"Finally, a one-piece billet, turbulence free, Y fitting. Unlike other, so called, high flow Ys...
Photo - Primary
Sold Out

Radium Engineering Universal Hose Barb Adapter For 1-1/4in ID Hose ( w/ 1/4NPT Port) - Green

Regular price $56.95
Sale price $56.95 Regular price
Unit price
Designed to provide an easy way to tap into a 1-1/4" I.D hose. 1/4 NPT...
Photo - Primary

Radium Engineering 8AN ORB to 1/8NPT Female Adapter Fitting - Blk Anodized

Regular price $32.95
Sale price $32.95 Regular price
Unit price
Radium Engineering 8AN ORB to 1/8NPT Female Adapter Fitting - Blk Anodized
Photo - Primary

Radium Engineering 10AN ORB to 6AN Male Fitting - Black

Regular price $32.95
Sale price $32.95 Regular price
Unit price
Radium Engineering 10AN ORB to 6AN Male Fitting - Black
Photo - Primary

Radium Engineering 10AN to 8AN Male Fitting - Black

Regular price $32.95
Sale price $32.95 Regular price
Unit price
Radium Engineering 10AN to 8AN Male Fitting - Black
Photo - Primary

Radium Engineering 10AN Male to 10AN ORB Fitting - Black

Regular price $32.95
Sale price $32.95 Regular price
Unit price
Radium Engineering 10AN Male to 10AN ORB Fitting - Black
Photo - Primary

Radium Engineering Fuel Pump Inlet Filter Sock

Regular price $32.95
Sale price $32.95 Regular price
Unit price
Easy installation on most aftermarket submersible fuel pumps
Photo - Primary

Radium Engineering OEM Style SAE Quick Disconnect Fitting 5/16in Male to 6AN Male

Regular price $37.95
Sale price $37.95 Regular price
Unit price
Radium Engineering OEM Style SAE Quick Disconnect Fitting 5/16in Male to 6AN Male
Photo - Primary

Radium Engineering 3/8in SAE Male to 6AN Male

Regular price $37.95
Sale price $37.95 Regular price
Unit price
Radium Engineering 3/8in SAE Male to 6AN Male
Photo - Primary

Radium Engineering 6AN Inline to 1/8NPT Female Fitting

Regular price $37.95
Sale price $37.95 Regular price
Unit price
Commonly used to install a sensor or gauge inline with a -AN hose
Photo - Primary

Radium Engineering 8AN Inline to 1/8NPT Female Fitting

Regular price $37.95
Sale price $37.95 Regular price
Unit price
Commonly used to install a sensor or gauge inline with a -AN hose
Photo - Primary

Radium Engineering 10AN Inline to 1/8NPT Female Fitting

Regular price $37.95
Sale price $37.95 Regular price
Unit price
Commonly used to install a sensor or gauge inline with a -AN hose
Photo - Primary
Sold Out

Radium Engineering 6AN ORB Plug

Regular price $32.95
Sale price $32.95 Regular price
Unit price
Radium Engineering 6AN ORB Plug
Photo - Primary

Radium Engineering 8AN ORB Plug

Regular price $32.95
Sale price $32.95 Regular price
Unit price
Radium Engineering 8AN ORB Plug
Photo - Primary

Radium Engineering 8AN ORB to 6AN Male Fitting

Regular price $28.95
Sale price $28.95 Regular price
Unit price
Radium Engineering 8AN ORB to 6AN Male Fitting
Photo - Primary

Radium Engineering 8AN ORB to 8AN Male Fitting

Regular price $28.95
Sale price $28.95 Regular price
Unit price
Radium Engineering 8AN ORB to 8AN Male Fitting
Photo - Primary

Radium Engineering 8AN ORB to 10AN Male Fitting

Regular price $28.95
Sale price $28.95 Regular price
Unit price
Radium Engineering 8AN ORB to 10AN Male Fitting
Photo - Primary

Radium Engineering 1/8in NPT Plug

Regular price $23.95
Sale price $23.95 Regular price
Unit price
Aluminum, Low profile, Black anodized
Photo - Primary

Radium Engineering Dual 6AN to 8AN Y-Adapter Block Fitting

Regular price $47.95
Sale price $47.95 Regular price
Unit price
Bright-dipped green anodized surface finish for corrosion resistance against multiple fluids
Photo - Primary

Radium Engineering 6AN 6 AN 6 AN Y Adapter Fitting

Regular price $47.95
Sale price $47.95 Regular price
Unit price
Bright-dipped green anodized surface finish for corrosion resistance against multiple fluids
Photo - Primary

Radium Engineering 3/16in Barb Vacuum Port Adapter

Regular price $28.95
Sale price $28.95 Regular price
Unit price
Replacement vacuum nipple for Radium Engineering fuel pressure regulators.
Photo - Primary

Radium Engineering 10AN ORB to Barb .375in Hose

Regular price $32.95
Sale price $32.95 Regular price
Unit price
Suitable for all types of rubber hose with 3/8" (8-10mm) inside diameter
Photo - Primary

Radium Engineering 10AN ORB to Barb .500in Hose

Regular price $32.95
Sale price $32.95 Regular price
Unit price
Suitable for all types of rubber hose with 1/2" (12-14mm) inside diameter
Photo - Primary

Radium Engineering 10AN ORB to Barb .625in Hose

Regular price $32.95
Sale price $32.95 Regular price
Unit price
Suitable for all types of rubber hose with 5/8" (15-17mm) inside diameter
Sort by
  • Featured
  • Most relevant
  • Best selling
  • Alphabetically, A-Z
  • Alphabetically, Z-A
  • Price, low to high
  • Price, high to low
  • Date, old to new
  • Date, new to old