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Bosio PowerPlus 520 Set of 4 Nozzles

Your Price:
$239.00 (You save $37.00)
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  • Product Description



    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.

    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.


    To order a single nozzle CLICK HERE



    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.

  • Product Reviews


    Write A Review

    1. Great Service

      I recently ordered a set of pp520 injectors with mounting/calibration and hot swap. The crew at Kerma TDI was awesome to deal with, and made the process very easy. The car feels better than ever with much more power and better fuel economy. bottom line if you need something for your TDI, Go to Kerma for the best parts and world class service. on 13th Aug 2016

    2. Huge improvement

      Went for PP520 with the Injector HotSwap. I'd highly recommend the HotSwap and getting the mounting/calibrating. These nozzles make a noticeable difference in the car's performance and are a great replacement for the old stock nozzles that plague many ALH's. They work great on an otherwise stock car and can support some future power mods, which make them a great buy. I'm very happy with the PP520's and would do it all over again if I had to. on 6th Oct 2015

    3. Amazing company to deal with.

      First off, the company is absolutely amazing to work with. They answered every question. Sent me the specialty tools I needed to do the job and recommended an injector to fit my needs. The swap was super easy. The performance and mileage increase is unbelievable. It's an 03 golf TDI, 156,000 miles. I haven't even run a full tank through the injectors and I already know I'll get close to 750 miles out of this tank. I usually barely hit 600. on 23rd Jul 2015

    4. Oh, wow... way cheaper than a new car!

      Man, unbelievable difference these nozzles made! I had them digitally calibrated by Kerma before they were shipped to me, and this car feels twice as powerful now.
      I have a 99.5 Jetta TDI, original nozzles on 275k miles. You can imagine how clogged those nozzles must have been. I put these new ones on and it runs so smooth... the power is really great off the line, and REALLY great at highway speed. I'm not taking it to the drags or anything, but it's an amazing improvement.
      Thanks, Kerma!
      on 31st Mar 2015

  • Other Details

    Car Application: Volkswagen;Golf;1999
    Car Application: Volkswagen;Golf;1999.5
    Car Application: Volkswagen;Golf;2000
    Car Application: Volkswagen;Golf;2001
    Car Application: Volkswagen;Golf;2002
    Car Application: Volkswagen;Golf;2003
    Car Application: Volkswagen;Jetta;1996
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    Car Application: Volkswagen;Jetta;1998
    Car Application: Volkswagen;Jetta;1999
    Car Application: Volkswagen;Jetta;1999.5
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    Car Application: Volkswagen;New Beetle;1998
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    Car Application: Volkswagen;New Beetle;2000
    Car Application: Volkswagen;New Beetle;2001
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    Car Application: Volkswagen;New Beetle;2003