BMW Performance & Motorsport

Speedfactor Ltd has a comprehensive range of BMW aftermarket performance car parts in stock for BMW range of vehicles. Specializing in E30 E36 E46 E92.  This includes Ruff Automobile Technik suspension products, chassis reinforcements and a huge range of BMW motorsport products. Check out below to see some of our offerings.

BMW Performance Car Parts & Services

BMW have proven to be a very popular choice for street and performance car enthusiasts for decades. With the vast array of performance parts and tuning equipment available, they make for fantastic street cars and have a very strong presence in race classes through out New Zealand. It is also the largest single make race series in NZ and has been for some time. They are well represented with a diversity of chassis and modifications spread over various race classes.


Some of the specialized products and services we offer for BMW’s have filtered across the open class racers. Chassis preparation including seem welding, reinforcing and complete race car preparation services are carried out in our premises.


Our XYZ performance street and race specific coilover systems and Big brake kits have established themselves well with great support from BMW customers and competitors.  We have developed very competitive packages and are pleased to be able to provide competitive suspension and brake systems. 


The growing demands of developed street cars and race cars has created demand for more durable engines that make more HP and torque. Speedfactor Ltd has worked closely for some years with piston and rod manufactures, valve train and camshaft producers, to offer a comprehensive range of 4 and 6 cylinder engine components for our customers and there engine builders, and our own in house race engine building services for most of the BMW engines currently competing in NZ.

Whether it be parts and components, or engine building services for performance road and race engines, we can offer a wealth of knowledge and help you competitively.

We now carry a comprehensive range of engine components for the BMW 4 and 6 cylinders

M10 M20 M30 M50 M52 M54 S14 S38 S50 S54


Full engine reconditioning and rebuilding services available.

BMW XYZ Coil Overs

30 Way Dampner adjustable. All height adjustments via the lower mount.


  • 30 kg
  • Limited Availability
  • Ships within 3-5 days

Athena Head Gaskets

Cooper ring and MLS options available. 


  • 3 kg
  • Limited Availability
  • Ships within 1-3 days

ACL Race Series Bearings

Big End and Main Bearing options available.


  • 1 kg
  • Limited Availability
  • Ships within 1-3 days

Key components for reliability in Motorsport are of the utmost importance.

We carry a range of chassis components for the commonly modified and raced E30, E36 and E46 chassis BMW's.   We have a range of products from Ruff Automobile Technik for performance and race vehicles.

Engine mounts, transmission mounts, suspension bushes, camber plates, top suspension mounts plus much more.

E36 rear subframe and trailing arm reinforcement plate kits

Torsen 60% lock LSD's for E30 E36 E46 E82 and E92

Wavetrac and Mfactory helical lsd

Motorsport KAAZ 1.5way LSD

Final drive options and diff rebuilding parts available 


Ruff Technik

Suspension and sub fram bushes
Ruff Automobile Technik

Ruff suspension & sub-frame bushes, Limited sip differentials, engine & transmission mounts, camber plates and shock mounts...

AP Sportfahrwerke lowering springs, sport suspension kits (shocks and springs as a kit) and selective coilovers

We are extending our range of Zimmermann and ATE brake rotors and pads from Germany


If you have any road or race parts or service requirement, please contact us and we will be glad to assist you to get the setup you require.