Turner Motorsport for BMW Z4 M Roadster S54 (2003-2008)

Eliminate the grimy, leaky, factory BMW power steering expansion tank with a beautiful billet aluminum reservoir.
Upgraded for thermal capacity, performance and extended rack life!

Our Turner triple baffled reservoir allows you to fix the downfalls of the factory BMW power steering expansion tank without losing that factory feel. The upgraded Turner reservoir has internal baffling to prevent cavitation and air pocket to make sure your rack is getting the supply of power steering. The constant flow of power steering keeps your rack cooled, lubricated and functioning properly. Extend the life of your rack and seals for years to come with increased performance and drivability. Can be used in motorsport, off-roading and daily use applications for a truly unique and universal upgrade.

Eliminates the grimy, leaky, factory BMW power steering expansion tank with a beautiful aluminum component. Increased factory power steering performance in both feel and cooling. Factory-fit with both hoses and bracketry. Additional cooling capacity will increase fluid thermal carrying capacity before overheating. Adapters where necessary to ensure reservoir will work with to-be-designed AN hose kits as well as factory hoses. Add-on, in-line valves to allow for easy flushing of power steering fluid.

Features:

Billet aluminum construction

Eliminates the leaky factory BMW reservoir and replaces it with a billet aluminum component.

Upgraded 0.45L capacity for better cooling and reduced overflow.

Internal baffles to remove bubbles caused by pump cavitation

Compatible with factory hoses and factory bracket.

Removeable Internal mesh filter

Hub Extenders are the solution that no one else has! BMW wheels must fit on a hubcentric lip to be securely (and safely) mounted to the hub. But with a 3, 5, 8, or some 10mm spacers on a lip measuring no more than 11mm that presented a huge problem - there would be no lip left over for the wheel to rest on! As one of the world's leading BMW tuners and race teams, we came up with a way to extend the lip and get back the lost surface area for the wheel to safely mount on. Our Hub Extenders are the first of their kind.

Hub Extenders fit where the stock dust cap is usually fitted on the front wheel hub. Pop out the dust cap and tap the Hub Extender into its place. It becomes an extension of the original lip. These will only work on the front hubs of the cars listed below because the rear hub is tapered inside (narrows down). These will not work with Xi AWD models because the front axle shaft protrudes through the hub. With Hub Extenders in place you can use nearly any flat wheel spacer - 3mm, 5mm, 7.5mm, 10mm, or possibly more without worrying that the wheel will not be securely seated. This is perfect for wheels that have chamfers on the back of the wheel that don't match up to existing spacers (Kosei K1 spacers for example).

Turner Hub Extender Features --

+ hub extension makes flat spacers a true hubcentric fitment
+ precise tolerance fitment thanks to CAD process and CNC mill machine
+ aerospace grade aluminum  light weight but very strong with a high resistance to corrosion
+ additional military-spec hardcoat for further corrosion resistance
+ stealthy black color with laser engrave Turner logo
+ Turner Motorsport track and street tested!
+ Made in the USA

Wheel Limitations. Special consideration needs to be taken since wheel design and manufacture differ from brand to brand. The key dimension is the dept of the center bore. Some wheels won't work with larger spacers and a Hub Extender because of the additional protrusion into the center bore. Please measure your wheel to make sure it can accommodate an extra 2.5-5mm of hub extending into the center bore. Click here for a diagram.

Hub Limitations. BMW has multiple hub designs but not all are compatible with our Hub Extenders. The inside lip of the hub must be flat and smooth for at least 13mm (the depth our Extender fits into the hub). Some BMW hubs have a bowl shape or have tapered inside walls which will prevent the Hub Extender from seating all the way. Remove the hub dust cap to check before opening your Turner Hub Extenders.

This item fits the following BMWs:
2014+ F22 F23 BMW 228i M235i
1988-1991 E30 BMW M3
1992-1998 E36 BMW 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2005 E46 BMW 323i 323ci 325i 325ci 328i 328ci 330i 330ci M3
10/2013+ F30 BMW 320i 328i 335i - Sedan
10/2013+ F31 BMW 328i - Wagon
10/2013+ F34 BMW 328i - Gran Turismo
10/2013+ F32 BMW 428i 435i - Coupe
10/2013+ F33 BMW 428i 435i - Convertible
10/2013+ F36 BMW 428i 435i - Gran Coupe
1982-1988 E28 BMW 524td 528e 533i 535i 535is M5
1989-1995 E34 BMW 525i 530i 535i 540i M5
1982-1989 E24 BMW 633csi 635csi M6
1988-1994 E32 BMW 735i 735il 740i 740il 750il
1995-2001 E38 BMW 740i 740il 750il
1990-1999 E31 BMW 840i 840ci 850i 850ci 850csi
1997-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe
2003-2008 Z4 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe

Unlock the full potential of your S54’s valvetrain with our High Performance Cam Followers/Rocker Arms, built for precision, durability, and reliability in high-revving performance engines.

Crafted from forged chromoly steel and finished with a diamond-like carbon coating, these cam followers are engineered to deliver exceptional strength, reduced friction, and outstanding wear resistance, ideal for demanding street or track use. Each unit is precision-ground for consistent clearances and smooth, stable valvetrain motion at all RPMs. Despite heavy-duty construction, our design retains the same weight as the factory rocker arm, preserving OE valvetrain geometry and balance while offering superior longevity and performance.

Rocker arms wear in conjunction with the camshafts, meaning the two must be replaced simultaneously. Aftermarket and performance camshaft options (Schrick, CAT-Cams, etc.) are typically ground from softer blanks and, as a result, cannot be used with factory rocker arms. We tested our performance cam followers with aftermarket camshafts to validate compatibility, ensuring smooth, reliable, and safe operation under demanding conditions.

Features:

Forged chromoly construction for maximum strength and durability Diamond-like carbon-coated surface reduces friction, extends service life, and permits compatibility with aftermarket and performance camshaft options Precision-ground tolerances ensure consistent and quiet operation OEM weight match maintains valvetrain balance and reliability Superior wear resistance for performance and endurance applications NOTE: Rocker arms are wear items and must be replaced alongside a new set of camshafts, regardless of profile or manufacturer. Installing a new set of rocker arms onto a used set of camshafts is NOT recommended.

Kit Contents:

24 DLC-Coated Rocker Arms (required to complete both camshafts) Product Development: Our Turner Performance Rocker Arms are the result of advanced engineering, testing, and quality assurance by Turner’s Research & Development team. Every stage of development employs FARO laser scanning, SolidWorks 3D CAD modeling, and in-house rapid prototyping for precise fitment and design validation. Performance and durability are proven through Mustang AWD 500 SE dyno testing and Superflow SF-750 Flowbench analysis, ensuring each component meets Turner’s uncompromising standards for performance and quality.

Our renowned TMS adjustable front sway bar / swaybar links for BMWs are now available in custom lengths, making them easy to order for any aftermarket or custom suspension setups. Simply measure for your ideal link length, and order the links with the best length range (below). Each sway bar link has a 10mm diameter mounting pin/stud, which is the typical factory/stock size for a universal fitment. These are sold by the pair, and each set includes two matching sway bar end links.

These end links offer the quiet operation and long life of "stock" BMW end links, but with the strength and adjustability of rod-end style sway bar links. These sway bar links can be used on a wide variety of BMWs and aftermarket BMW suspensions. When measuring, please consider that the length ranges of our Custom Adjustable end links are measured from the center to center on the end link mounting stud / pin, as shown in our diagram.

Note for E9X M3: the unique mounting on the M3 strut requires a set of our adapter seats (#TSU9912AF9). You can add them with your links from the menu below.
 

TMS Part#Center to Center (mm)Center to Center (inch)

TSU9912A35155.00mm - 170.00mm6.10" - 6.69"

TSU9912A40170.00mm - 185.00mm6.69" - 7.28"

TSU9912A45180.00mm - 195.00mm7.08" - 7.67"

TSU9912A50190.00mm - 205.00mm7.48" - 8.07"

TSU9912A55207.00mm - 222.00mm8.15" - 8.74"

TSU9912AF1220.00mm - 235.00mm8.66" - 9.25"

TSU9912A70240.00mm - 255.00mm9.45" - 10.04"

TSU4612AF3250.00mm - 265.00mm9.84" - 10.43"

TSU9912A80261.00mm - 276.00mm10.28" - 10.87"

TSU5012AF8280.00mm - 295.00mm11.02" - 11.61"

TSU9912A95290.00mm - 305.00mm11.42" - 12.00"

TSU9912110320.00mm - 335.00mm12.59" - 13.19"

TSU9912115330.00mm - 345.00mm12.99" - 13.58"

TSU9912130362.00mm - 377.00mm14.25" - 14.84"

TSU9912135370.00mm - 385.00mm14.57" - 15.16"

TSU9912140381.00mm - 396.00mm15.00" - 15.60"

TSU9912145389.00mm - 404.00mm15.31" - 15.91"

Please select your length below. 

Set of 2 universal 2.5" inlet to 3.5" outlet exhaust tips.

Over the years, it is not uncommon for exhaust tips to be damaged and corroded, becoming a "sore spot" of your BMW. To remedy this unsightly feature, we now offer our very own exhaust tips! Featuring stainless steel construction and a simple, yet sporty design, this exhaust tip will look perfectly at home on almost any model.

Features & Specifications:

Swivel feature for perfect alignment of the exhaust tips in the rear bumper
2.5" Inner Diameter
3.5" Outer Diameter
Black Chrome
Double Wall Construction
Angle Cut Style
Includes Stainless Steel Clamp

High Performance air filter, replacement filter for Turner Motorsport intakes, or great for your custom intake project. 

Filter Dimension 

• 178MM length 
• 127MM base
• 75MM inlet 

When we designed this catch we wanted to have the most function options available, the best separation method, and the easiest to service. The Turner engineered catch cans offer a pre-setup design based ion desired flow direction, however this does not limit you to this flow. The inner baffle orientation can be easily adjusted to flow in both directions in case you decide to move this catch can to a different vehicle. A 4 chamber system  baffle system inside the catch can was engineered to create multiple changes in the direction of airflow within the separator to cause oil droplets to fall out of suspension before exiting the catch can. Having a closed / recirculated design reduces oil ingestion and promotes cleaner emissions and odor-less operation.

Our catch can was also designed with the idea that the cans fill level can easily be checked with a top mounted dipstick and an optional use bottom drain hole. The drain system comes complete with a valve and hose to be mounted at a lower area of the vehicle so when you're doing an oil change you can drain the catch can.

Features:

• 6061-T6 billet machined body, anodized black for lasting protection and appearance
• Strategically positioned 4 chamber baffle system maximizes oil / air separation 
• Knurled and black anodized oil dipstick makes inspecting oil volume of reservoir clean and simple
• Sealed with a pre-installed viton O-Ring
• Includes 2.5mm allen key to remove baffle plates for cleaning
• Engineered to create multiple changes in the direction of airflow within the separator to cause oil droplets to fall out of suspension before exiting the catch can
• Closed / recirculated design reduces oil ingestion and promotes cleaner emissions and odor-less operation
• Optional use drain hole - drain kit included!
• Universal mounting kit

Dual Tip Wall Slash Cut Exhaust - 3.0 Inlet - 3.5 OD - Stepped Left - Mirror is the perfect upgrade for those looking to enhance their vehicle's aesthetics and performance. Crafted with a stunning mirror finish, this exhaust tip features a sleek slash cut and stepped left design that adds a touch of sophistication to your vehicle. Its double-wall construction ensures durability and a premium look, making it a must-have for any car enthusiast.

• Enhanced Appearance: Mirror finish provides a polished, high-end look.
• Durable Construction: Double-wall design for long-lasting performance.
• Precision Fit: 3.0-inch inlet and 3.5-inch outer diameter for a perfect fit.
• Stylish Design: Slash cut and stepped left design for a unique, aggressive appearance.
• Easy Installation: Designed for straightforward installation on compatible vehicles.

Set of 2 universal 2.5" inlet to 3.5" outlet exhaust tips.

Over the years, it is not uncommon for exhaust tips to be damaged and corroded, becoming a "sore spot" of your BMW. To remedy this unsightly feature, we now offer our very own exhaust tips! Featuring stainless steel construction and a simple, yet sporty design, this exhaust tip will look perfectly at home on almost any model.

Features & Specifications:

Swivel feature for perfect alignment of the exhaust tips in the rear bumper
2.5" Inner Diameter
3.5" Outer Diameter
Brushed Aluminum Finish
Double Wall Construction
Angle Cut Style
Includes Stainless Steel Clamp