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Bosio PP520 Single Nozzle [EC-5]

Limited Supply: only 3 remaining
Pricing: $84.00
5 5 1



The exclusive factory authorized importer / distributor for Genuine Bosio nozzles for North America


The Power Plus 520 Nozzle is the best upgrade for most MK4 TDIs equipped with the manual transmission. It is also an effective upgrade on other VE TDI cars. 214.6um orifice diameter.

The OEM and their suppliers must compromise quality and performance characteristics to meet production numbers. These limitations are compounded by the bean-counters in the corporate office always demanding lower cost.

The Fratelli Bosio Power Plus philosophy removes these artificial OEM limitations, by applying industry-leading technology to decades of injector nozzle manufacturing know-how. Each Power Plus nozzle embodies thousands of hours of testing to achieve the most effective design, without compromise.


The result:

- optimized spray pattern

- closer tolerances

- hardened wear surfaces

- More power than the OEM parts

- More torque than OEM parts

- Less exhaust smoke for the same power output

- Improved economy in many cases


The Power Plus 520 is recommended for most equipment configurations.

The absolute best results will be obtained when used in conjunction with the Q Loader Flash Programmer and Kerma Tuning (see 'CHIP TUNING AND ECU UPGRADES') and a mild turbo upgrade. (see 'TURBOS') Such a set up will support up to 150-160 whp.

Click the link to see the POWERPLUS dyno test results.

Click the link to see the DIY guide on how to install nozzles

How To Instructions for injector nozzle installation will be in a link in your invoice. You must copy and paste to a web browser and have adobe acrobat reader installed.



Injector Calibration Service:  We highly recommend our Injector Calibration Service.  It is the only way to properly set up your new Genuine Bosio nozzles for ideal performance.  Please CLICK HERE for more details.


Bosio Power Plus 520

ULSD Rated

Product ID: PP520


No smoke in A4 body 5-speed cars with stock chip
Best choice for most applications besides automatic transmission cars
Approximately +20 hp +40 torque


Flow Data: 141% Above Stock Flow


NOTE: This is the direct flow replacement for "T4-150hp DSLA150P1019-764" Nozzle but with DLC Coatings


- Optimized hole geometry for improved flow characteristics

- closer tolerances
- hardened wear surfaces

- DLC Coated needle for superior wear characteristics with ULSD fuel
- More power than the OEM parts
- More torque than OEM parts
- Less exhaust smoke for the same power output
- Improved economy in many cases

- 5 year unlimited mileage warranty with installation


The PowerPlus 520 outflows other nozzle types thanks to their state of the art design. Despite the PowerPlus 520 having "Smaller holes" than the other generic brands, they outflow thos nozzles accross the full flow range. When it comes to nozzles, Quality means more than size!


=== We realize that at times injectors may be damaged we would like to remind you that we offer a complete set of NEW injectors at very competitive prices shipped to you ready for install.

Reviews / Q&A

Reviews and Q&A


  • PP520single
  • PP520single
  • Fratelli Bosio
  • Available
  • New


Shipping Information

  • Item Requires Shipping
  • 0.2 lbs.
  • W4.0000” x H4.0000” x L4.0000”