BMW Z Series E85/6 (2003-2008)

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Bavarian Autosport - Corporate Logo
T#:640487
Part#: 11617579114
In Stock
Sale - Save 10% $ 187.99

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05-03-2026

$ 169.19 USD
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$ 169.19 USD
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The DISA Valve adjusts the intake manifold runner length to improve performance. When it fails it can lead to a rough idle and perhaps a engine fault code light. This adjusting unit fits cars with N52 or N51 engine - not N52N models. This is the larger of the 2 DISA Valves on this motor. The other DISA valve is part number 11617560538 From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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Bavarian Autosport - Corporate Logo
T#:638087
Part#: 11617544805
In Stock
Sale - Save 20% $ 149.99

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$ 119.99 USD
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Sale - Save 20%
$ 149.99

This product was last offered at the strikethrough price on
05-03-2026

$ 119.99 USD
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The DISA Valve adjusts the intake manifold runner length to improve performance. When it fails it can lead to a rough idle and perhaps an engine fault code light. This adjusting unit fits E46 325i with M54 engine, 330i, E39 530i, E60 530i 2004-2005 - X3 3.0i 2004-2006 - X5 3.0i 2000-2006 Z3 3.0i, Z4 3.0i 2003-2006. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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Bavarian Autosport - Corporate Logo
T#:639842
Part#: 11617560538
In Stock
Sale - Save 20% $ 177.99

This product was last offered at the strikethrough price on
05-03-2026

$ 142.39 USD
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Sale - Save 20%
$ 177.99

This product was last offered at the strikethrough price on
05-03-2026

$ 142.39 USD
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The DISA Valve adjusts the intake manifold runner length to improve performance. When it fails it can lead to a rough idle and perhaps an engine fault code light. This adjusting unit fits cars with N52 or N51 engine - not N52N models. This is the smaller of the 2 DISA Valves on this motor, it is considered the "Upper Disa valve". The lower DISA valve is part number 11617579114 From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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Bavarian Autosport - Corporate Logo
T#:599823
Part#: 11517586925
In Stock
Sale - Save 10% $ 299.99

This product was last offered at the strikethrough price on
05-03-2026

$ 269.99 USD
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Sale - Save 10%
$ 299.99

This product was last offered at the strikethrough price on
05-03-2026

$ 269.99 USD
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Don't take your car's cooling system for granted. A waterpump failure can cost you an engine, which is why preventatively replacing your BMWs waterpump and refreshing the cooling system every 60,000 miles. The water pump is a weak point is the cooling system. Replacing your waterpump will go a long way for keeping your car on the road and operating properly. This water pump fits many 2006 and newer BMW 6 cylinder engines, specifically all the BMWs with the N51, N52, N53 engines. You will also need to purchase replacement aluminum screws Part #11510392553 From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty. This water pump fits the following BMWs: 2008-20xx E82 128i 2006-2006 E90 325i sedan, 330i sedan, 325xi sedan, 330xi sedan 2007-2012 E90 328i sedan, 328xi sedan, 328i xDrive sedan 2007-2012 E92 328i coupe, 328xi coupe, 328i xDrive coupe 2007-2012 E93 328i Convertible 2006-2006 E60 525i, 525xi, 530i, 530xi 2007-2010 E60 528i, 528xi, 528i xDrive 2007-2010 E83 X3 3.0i X3 3.0si 2007-20xx E70 X5 3.0si X5 xDrive30i 2006-2008 E85 Z4 3.0si 2009-20xx E89 Z4 sDrive30i
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Bavarian Autosport - Corporate Logo
T#:579895
Part#: 55362
In Stock
Sale - Save 20% $ 104.99

This product was last offered at the strikethrough price on
05-03-2026

$ 83.99 USD
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Sale - Save 20%
$ 104.99

This product was last offered at the strikethrough price on
05-03-2026

$ 83.99 USD
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The blower motor is located behind the glove box and is responsible for circulating air. If yours has failed, there may be little to no air flow. Reuses your regulator. Blower motor resistor part number 64119265892 sold separately.

From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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Bavarian Autosport - Corporate Logo
T#:640486
Part#: 11617544806
In Stock
Sale - Save 20% $ 156.99

This product was last offered at the strikethrough price on
05-03-2026

$ 125.59 USD
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Sale - Save 20%
$ 156.99

This product was last offered at the strikethrough price on
05-03-2026

$ 125.59 USD
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The DISA Valve adjusts the intake manifold runner length to improve performance. When it fails it can lead to a rough idle and perhaps a engine fault code light. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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Bavarian Autosport - Corporate Logo
T#:638073
Part#: 11127552281
In Stock
Sale - Save 20% $ 293.99

This product was last offered at the strikethrough price on
05-03-2026

$ 235.19 USD
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Sale - Save 20%
$ 293.99

This product was last offered at the strikethrough price on
05-03-2026

$ 235.19 USD
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Years of excessive can cause the plastics of your valve cover to become warp or become hard and brittle, leading to cracking and potential oil leak issues. If you are experiencing oil loss, vacuum issues, or even poor running conditions, your valve cover may be the reason why. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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Bav Auto Variable Engine Timing Solenoid Switch - BMW E39 E46 E53 E83...
Requires use of open-ended wrench for installation - does not fit BMW specific socket tool
Bavarian Autosport - Corporate Logo
T#:599824
Part#: 11361432532
In Stock
Sale - Save 20% $ 93.99

This product was last offered at the strikethrough price on
05-03-2026

$ 75.19 USD
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This product was last offered at the strikethrough price on
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$ 75.19 USD
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This solenoid works with the VANOS engine timing system to improve horsepower and torque throughout the RPM range. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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Bavarian Autosport - Corporate Logo
T#:638092
Part#: 11127512839
In Stock
Sale - Save 20% $ 252.99

This product was last offered at the strikethrough price on
05-03-2026

$ 202.39 USD
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Direct replacement for cracked, leaky, warped, or otherwise failing plastic valve covers. Fits a variety of vehicles, including E39, E46, E53, E60, E83, and Z4 chassis' equipped with the M54 engine.

Shark Injector - Corporate Logo
T#:387575
Part#: N745Z430
Ships on Aug 11, 2026
Sale - Save 10% $ 349.00

This product was last offered at the strikethrough price on
05-03-2026

$ 314.10 USD
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Sale - Save 10%
$ 349.00

This product was last offered at the strikethrough price on
05-03-2026

$ 314.10 USD
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Revitalize your BMW's performance effortlessly with the Shark Injector, the easiest solution to add power and torque. Dyno-tuned by BMW legend Jim Conforti, this software optimizes high-octane (91+) pump gas, enhancing mid-range torque and high-RPM horsepower. The rev limit is raised, and fuel and spark maps are fine-tuned for improved performance without compromising driveability. A true plug-and-play solution, each unit is shipped with detailed instructions, ensuring a swift installation in just an hour.

  • Dyno-tuned by BMW legend Jim Conforti for optimal performance
  • Designed for high-octane (91+) pump gas
  • Boosts mid-range torque and high-RPM horsepower
  • Fine-tuned fuel and spark maps for enhanced power
  • Maintains driveability and improves responsiveness
  • Easy plug-and-play installation with detailed instructions
  • Rev limit raised to 7,000 RPM for an exhilarating driving experience
  • Compatible with NORTH AMERICAN SPEC BMWs
  • +4 HP at 6,100 RPM, +7 torque @ 3,400 RPM

Unleash the full potential of your BMW's M54 engine with the Shark Injector, designed for a superior driving experience.

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Shark Injector - Corporate Logo
T#:387566
Part#: N745Z425
Ships on Aug 11, 2026
Sale - Save 10% $ 349.00

This product was last offered at the strikethrough price on
05-03-2026

$ 314.10 USD
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Sale - Save 10%
$ 349.00

This product was last offered at the strikethrough price on
05-03-2026

$ 314.10 USD
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Unlock the full potential of your BMW effortlessly with the Shark Injector, offering the easiest way to enhance power and torque. Tuned by BMW legend Jim Conforti, this software optimizes high-octane pump gas for mid-range torque and high-RPM horsepower. The Shark Injector is designed for seamless installation, providing a true plug-and-play performance solution that takes only an hour. Enjoy improved performance without compromising driveability.

  • Easy Installation: Simply connect the Shark Injector using a battery charger, push a button, and witness a quick, hassle-free installation process.
  • Performance Boost: Gain an impressive 7 HP at 5,800 RPM, 7 lb/ft of torque at 4,700 RPM, and experience a raised rev limit to 7,000 RPM.
  • Enhanced Driving Experience: Jim Conforti's tuning improves engine response, removes the speed limiter, and elevates the driving experience under various throttle conditions.
  • North American Compatibility: Exclusively designed for North American SPEC BMWs; not suitable for Euro-SPEC BMWs.
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Shark Injector - Corporate Logo
T#:386540
Part#: SHARK-UPGRADE
In Stock
Sale - Save 10% $ 150.00

This product was last offered at the strikethrough price on
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$ 135.00 USD
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$ 150.00

This product was last offered at the strikethrough price on
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$ 135.00 USD
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You may be able to upgrade the Shark Injector file to another version to better meet your tuning needs. Depending on the model we may have better tunes for things such as intakes, larger air sensors, camshafts, headers, and others. For a small fee the current Shark Injector tune can be removed and a new file added instead (the original Shark file you were using would no longer be available). To do this, we need the car restored to stock settings with the current Shark Injector and then returned to us (updating via USB is not yet available). Sharks that were not Restored to stock cannot be upgraded and the unit will be returned to you (at your expense). We also perform other work on the Shark Injector while it is here, including diagnostic tests and re-packaging with the most current instructions. The Shark that you get back is virtually new and ready to be reinstalled!

To get started, review the catalog of current Shark Injector files for one that better matches your tuning spec.
1. Enter the new tuning file in the form below. Include any other relevant information.
2. Click the Update Price or Add To Cart button.
3. Complete the online transaction with your address and payment information.
4. A Turner Motorsport sales rep will contact you after your order has been submitted. Do not send in your Shark Injector until someone has contacted you with a reference number and return shipping address.

Turn-around time for upgrades is typically the same day we receive it. UPS Ground is the normal return shipping method unless you specify faster shipping on your order. 

Helpful Links:

  • Shark Injector File List - listing of all Shark Injector files by vehicle model. Select a file from this list to upgrade to.
  • Shipping Instructions - specific instructions for packaging and shipping. Also includes a contact form to include when you send back your Shark.
  • Emissions Waiver - some tunes require this emissions/smog waiver before we can program the new file to your Shark. These are noted in the catalog listing in the links above. Print and include this Waiver when you send in your Shark.

Shark Injector installation instructions

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Shark Injector - Corporate Logo
T#:339102
Part#: TMS1875
Ships on Aug 11, 2026
Sale - Save 10% $ 349.00

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 314.10 USD
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Sale - Save 10%
$ 349.00

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 314.10 USD
Free Shipping
  • Unlock torque and horsepower
  • Smoother engine with less hesitation
  • Improved throttle response
  • Rev limit increased to 7000
  • Top speed limiter removed
  • Installs in minutes!
  • Performance software is a must-have upgrade on your BMW and you won't find an easier and better software solution than the Shark Injector. Developed by BMW tuning expert Jim Conforti, this device plugs into the car's diagnostic port and flashes new performance files into your car's engine computer (ECU). There's no removal of the ECU and shipping, no cables, no laptop required - only a battery charger! Installation takes just a few minutes and your engine will perform like never before!

    The M54 performance software was developed on the dyno to create maximum power and torque using premium 91+ octane fuel while maintaining BMW reliability and smoothness. The software makes changes to the ECU's maps and algorithms for fuel injection, ignition timing, VANOS and camshaft movement, and transitional fueling. We modify the maps for part throttle and full throttle so you get better response and more torque at all RPM. We also raise the rev limit to 7,000 and remove the top speed limiter. By fine tuning these maps we've been able to improve the M54 engine beyond what BMW did by making more power and torque and a smoother-running engine.

    The Shark Injector plugs into the diagnostic port inside the Z4 cabin. With the battery charger supplying power, press the Upgrade button and within minutes the ECU is reflashed with the new performance tune. No other software product on the market comes close to how easy it is to install. You can use the Restore button to re-install the stock BMW software at any time. Detailed instructions are included. Other tuners require you to remove the ECU and ship it to them or use a laptop to read and write a new file. The Shark Injector is ready to install right out of the box! A planned future upgrade will allow you to use the USB port to load different performance files.

    Z4 2.5 (M54 engine) Performance Software Peak Gains

    HP Gain Up To + 7 @ 5800 RPM

    Torque Gain Up To + 7 @ 4700 RPM

    New Rev Limit7000 RPM


    M54 engine dyno chart

    Z4 3.0i (M54 engine) Performance Software Peak Gains

    HP Gain+ 4 @ 6100 RPM

    Torque Gain+ 7 @ 3400 RPM

    New Rev Limit7000 RPM


    M54 engine dyno chart
    Shark Injector Installation Instructions

    (click to expand)

    Shark Injector installation instructions
    A capable battery charger is required for the installation. The charger provides backup power supply to the regular car battery during installation. It must be capable of holding a continuous 10amp charge for the full installation (15-20 minutes).
    The minimum octane fuel for this software is 91.Shark Injector FAQ

    (click to expand)

    Shark Injector FAQ
    This item fits the following BMWs:
    2003-2005 E85 BMW Z4 2.5i Z4 3.0i

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