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  15. Brake Pads - Brembo GT BBK Calipers
  16. Brake Pads - StopTech BBK Calipers

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  1. Differential and Gearing Upgrades
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  3. OEM Clutch Kits & Clutch Parts
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  5. Stock OEM Dual Mass Flywheels
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Engine Chips

  1. Sprint Booster Drive-by-Wire Module

Engine Parts

  1. Water Pumps
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  3. Radiators & Cooling System Overhaul Kits
  4. Radiator Hoses, Cooling Hoses, & Hose Sets
  5. Underdrive Power Pulleys
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  17. VANOS Units & Parts
  18. Rod Bearing Kits
  19. Oil Coolers & Oil Cooler Parts


  1. Supersprint Performance Exhaust Systems
  2. Performance Headers & Downpipes
  3. Oxygen Sensor - O2 Sensors
  4. Exhaust Gaskets Hangers and Parts

Exterior / Body

  1. Black Grills
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  6. Wiper Blades, Wiper Pumps, & Wiper Motor Parts
  7. Hood Pins and AeroCatch Latches
  8. Racing Tow Hooks and Tow Straps


  1. aFe Cold-Air Intake Kits
  2. Gruppe M Cold-Air Intake Kits
  3. aFe Performance Air Filters
  4. K&N Performance Air Filters
  5. Intake Cleaning & Recharging Kits
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  1. Floor Mats
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  1. Bulbs for Headlights, Turn Signals and Tail Lights
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  1. Routine Maintenance & Tune-Up Packages
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  6. Ignition Coils
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  13. MOTUL Engine Oil and Gear Lubricants
  14. Red Line Oil & Fluids


  1. Shocks & Struts
  2. H&R Performance Springs
  3. Bilstein PSS PSS9 PSS10 Coil Over Suspensions
  4. H&R Coil Over Suspensions
  5. KW Coil Over Suspensions
  6. Chassis Reinforcement Kits & Parts
  7. Sway Bar Links & Sway Bar Parts
  8. Camber / Caster Kits
  9. Strut Braces & Stress Bars
  10. Control Arm Replacements & Upgrades
  11. Suspension Bushings & Mounts
  12. Wheel Bearings & Hub Assemblies
  13. Steering Racks & Power Steering Pumps
  14. Tie Rods & Steering Parts
  15. Coil Over Spring Hardware


  1. Apex Flow Formed Alloy Wheels
  2. Forgeline Custom Forged Alloy Wheels
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  4. Original BMW Wheels and Wheel Upgrades
  5. Winter Wheel & Snow Tire Packages
  6. Turner Motorsport Wheel Spacers
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  1. Alignment Tools
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  9. Genuine BMW Tool Kits
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  11. Sockets
  12. Spark Plug Sockets
  13. Transmission and Differential Tools
  14. Wheel Pin Tools
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Choose BMW

BMW 1 Series

  1. (E82) 1-series Coupe 2008+
  2. (E88) 1-series Convertible 2008+

BMW 2 Series

  1. (F22) 2-Series Coupe 2014+
  2. (F23) 2-Series Convertible 2014+
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BMW 3 Series

  1. (E21) 3-Series 1977-1983
  2. (E30) 3-series 1984-1991
  3. (E30) M3 1988-1991
  4. (E36) 3-series 1992-1999
  5. (E36) M3 1995-1999
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  8. (E90) 3-Series Sedan 2006-2011
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  13. (E93) 3-Series Convertible 2007-2013
  14. (E93) M3 Convertible 2008-2013
  15. (F30) 3-Series Sedan 2012+
  16. (F31) 3-Series Touring 2014+
  17. (F80) M3 2015+

BMW 4 Series

  1. (F32) 4-Series Coupe 2014+
  2. (F33) 4-Series Convertible 2014+
  3. (F34) 4-Series Gran Turismo 2014+
  4. (F82) M4 Coupe 2015+
  5. (F83) M4 Convertible 2015+

BMW 5 Series

  1. (E34) M5 1991-1993
  2. (E39) M5 2000-2003
  3. (E60) M5 2006-2010
  4. (E28) 5-Series 1982-1988
  5. (E34) 5-Series 1989-1995
  6. (E39) 5-Series 1996-2003
  7. (E60) 5-Series Sedan 2004-2010
  8. (E61) 5-Series Touring 2006-2010
  9. (F10) 5-Series 2011+

BMW 6 Series

  1. (E24) 6-Series 1977-1989
  2. (E63) 6-Series Coupe 2004-2010
  3. (E64) 6-Series Convertible 2004-2010
  4. (F06) 6-Series Gran Coupe 2013+
  5. (F12) 6-Series Coupe 2011+
  6. (F13) 6-Series Convertible 2011+

BMW 7 Series

  1. (E32) 7-Series 1988-1994
  2. (E38) 7-Series 1995-2001
  3. (E65) 7-Series SWB 2002-2007
  4. (E66) 7-Series LWB 2002-2007
  5. (F01) 7-Series SWB 2009+
  6. (F02) 7-Series LWB 2009+

BMW 8 Series

BMW Classics (E9, Bavaria, Isetta, etc)

  1. 2500
  2. 2800
  3. 3.0Si
  4. Bavaria
  5. 2800CS
  6. 3.0CS
  7. 2002
  8. 2002tii
  9. (E12) 528i 1977-1981
  10. (E12) 530i 1975-1978

BMW X Series (SAV)

  1. (E84) X1 Series 2013+
  2. (E83) X3 2004-2010
  3. (F25) X3 2011+
  4. (F26) X4 2015+
  5. (E53) X5 2000-2006
  6. (E70) X5 2007-2013
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  8. (F85) X5 M 2015+
  9. (E71) X6 2008+
  10. (F16) X6 2015+
  11. (F86) X6 M 2015+

BMW Z Series

  1. (E36/7) Z3 1997-2002
  2. (E85) Z4 M Roadster
  3. (E85/E86/E89) Z4 2003+
  4. (E86) Z4 M Coupe
  5. (E52) Z8 2000-2003

BMW 1600-2002 / tii

BMW i Series

  1. (I01) BMW i3 2014+
  2. (I12) BMW i8 2014+

MINI Cooper and Cooper S


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BMW MZ4 Cylinder Head Parts & Head Bolts

Cylinder head parts include all of the pieces of the valvetrain, lifters, rocker arms, head studs, and head bolts. We sell the original BMW or OEM head parts as well as performance upgrades such as titanium valve retainers, upgraded springs, and head studs. We also sell valve shim kits which are perfect for DIY E30 M3 S14 and E46 M3 S54 valve adjustments.
You're currently viewing parts for your (E85) Z4 M Roadster. Reset your chassis
For accurate results, specify your model below.
The head bolts on some BMW engines are buried under cam trays, oil lines, and other pieces within the head. A normal Torx socket bit will not clear which can leave you in a bind. That's why BMW developed this tool. It's the standard E12 female Torx at the end but has a thin wall design and the shaft stays narrow all the way to the 3/8 drive fitting. Fits any BMW engine that uses the E12 Torx head bolts, but especially M50, S50US, M52, S52, M52TU, and M54 engines where the head bolts are inaccessible.

Note: removing the cam trays allows access to the valvetrain to inspect for wear. Things like the keepers, valve spring retainers, and the camshafts themselves all suffer from wear and should be inspected when access allows.
Part #: 83300490856
Price: $43.95 (USD) 
For BMW's with S54 engines, these valve springs are made with premium Superclean Chrome Silicon Vanadium Steel alloy for high performance and durability at high rpms, with better memory. These are extremely high quality, offered at the best price.

Computer designed to ensure that the wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme racing conditions. Computer software allows Supertech to make sure that the harmonics are well under control.

The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW M Roadster M Coupe
2006-2008 E85 BMW Z4 M Roadster M Coupe
Part #: TMS11760
Price: $739.00 (USD) 
BMW recommends valve adjustment every 30,000 miles on the S54 engine.This genuine BMW valve shim kit includes a 23 different size shims ranging from 1.72mm to 2.6mm. There are 6 of each shim.

If you are adjusting the valves you will also need valve cover gaskets and we recommend the shim tool.

This item fits the following BMWs:
2001-2006 E46 BMW M3, M3 Convertible
2001-2002 Z3 BMW M Roadster M Coupe
2006-2008 Z4 BMW Z4 M Roadster M Coupe
Part #: 11340031525
Price: $492.95 (USD) 
Virtually every top professional BMW engine builder relies on ARP Pro Series head studs, particularly on the S54 3.2 liter engine. ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Each stud is heat-treated to 200,000 psi, ensuring complete heat penetration. ARP studs are threaded after heat-treat, which gives them 1000% (that's ten times!) better fatigue strength than studs threaded prior to heat-treat. Threading the studs after heat-treating is more difficult and costly (as it's harder on tooling) but the results are well worth the effort. These simply are the best S54 head studs we've found for the E46 M3 6 cylinder engines, and we highly recommend them in both the racing and forced induction arena. (Due to the additional clamping force between the head and block, these are IDEAL for turbo charging and supercharging!)

Converting from the factory BMW head bolts to head studs makes it much easier to assemble an engine, especially a racing powerplant which must be serviced frequently (and quickly!), and also ensures proper alignment of the head and gasket. Head studs also provide more accurate and consistent torque loading. Here's why: When you use bolts to secure the head, the fastener is actually being "twisted" while it's being torqued to the proper reading. Accordingly, the bolt is reacting to two different forces simultaneously. A head stud should be installed in a "relaxed" mode -- never crank it in tightly using a jammed nut. If everything is right, the stud should be installed finger tight. Then, when applying torque to the nut, the stud will stretch only on the vertical axis. An information sheet is provided with each set. Kit includes everything pictured -- 14 head bolts, washers, bolts and assembly lubricant.

These head studs fit the following BMWs/engines
2001-2006 E46 M3 coupe & convertible
2001-2002 MZ3 M Roadster & M Coupe (with S54 engine)
2006-2008 MZ4 Z4 M Roadster & M Coupe
Part #: 201-4303
Price: $182.58 (USD) 
Limited Qty Sale
BMW recommends valve adjustments every 30k miles on your S54 equipped BMW. We have all the parts you will need to do the job in one discounted package. The kit includes all the Genuine BMW valve shims, valve shim tool, and all the gaskets and seals you will need.

Kit includes:
11127832034 x 1 - Valve Cover Gasket
11127831271 x 6 - Spark Plug Hole Gasket
11121437395 x 2 - Valve Cover Seal Washer Grommet
11127830972 x 13 - Valve Cover Nut Grommet
11340031525 x 1 - Valve Shim Set
83300493743 x 1 - Valve Shim Tool

This item fits the following BMWs:
2001-2006 E46 BMW M3, M3 Convertible2001-2002 Z3 BMW M Roadster M Coupe2006-2008 Z4 BMW Z4 M Roadster M Coupe
Price: $706.80 (USD) 
Deleting the secondary air pump from your exhaust? This plate is the perfect touch! The air pump (also known as EGR system) has proven to be a headache for many BMW owners and it's one of the first things to go when building a racecar. The air pump is not required in many racing classes and deleting it saves some weight, complexity, and won't interfere with the rest of the exhaust or engine management system (deleting the air pump will require special programming in the ECU, a simulator, or a stand-alone engine management system). When removing the air pump valve from the head the port is left open that needs to be blocked off. That's where this little plate comes in. This is actually a factory BMW part and includes a new steel gasket to the head. It will slide over the existing studs and secure with the existing nuts.

This item fits the following BMWs:
1999-2006 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3
1999-2003 E39 BMW 525i 528i 530i 540i M5
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe
2003-2008 E85 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe
Part #: TMS211091
Price: $24.90 (USD) 
Head Bolt Set for the S54 engine.

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW Z3 M Roadster M Coupe
2006-2008 E85 BMW Z4 M Roadster M Coupe
Part #: 11127831862
Price: $36.95 (USD) 
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