Z3-Engine

OVER 1000 KITS SOLD! Have low fuel pressure or rough running engine? Have leaks or broken pintle caps? It may be time to rebuild your fuel injector...

OVER 1000 KITS SOLD! BMW introduced VANOS in the early 90s, and it added variable valve timing to their famous straight six. Over time the VANOS u...

*NOW OFFERING EXTENDED STUDS FOR AFTERMARKET HEADERS Installing the OEM exhaust manifold studs can be a real pain. Since the stock studs do not hav...

I believe its almost impossible to remove the injector harness and not lose one of these clips. On top of that, when one pops off, it falls into th...

The achilles heel of the M5x and S5x BMW engines has been the oil nut. Over time vibrations and hard driving can make this nut back off causing los...

Cold air intakes are nothing new, and they have been in discussion for as long as I can remember.  There are a lot of options out there, but most o...

Looking to delete the secondary air pump/EGR valve on your E46 or E39? These delete plates are CAD designed and laser cut out of billet aluminum. T...

This little adapter is a life saver. Made from stainless steel hex stock, this adapter fits into the stock location on your oil filter housing and ...

Getting rid of your Secondary Air Pump (SAP) and eliminating the EGR system on your M52/S52? These block-off plates are what you need. The EGR syst...

*NOW OFFERING EXTENDED STUDS FOR AFTERMARKET HEADERS Have you ever gone to remove an exhaust stud and the stud and nut comes out as a pair? Have tr...

Over 1000 sold! A popular conversion on OBD2 M52/S52 engines, is to convert to the M50 intake manifold. The problem with this is, the OBD2 engine ...

NEWS! We just upgraded to a top of the line ASNU fuel injector flow bench for the most accuracy and fastest turn around times.  The health of your ...

There is no mistaking the 5 speed ZF transmission that came in the E36, E39, Z3, and E46 were great transmissions.  They can hold a lot of power, a...

If you own a M52tu, or a M54 BMW engine, you have likely had issues with the plastic thermostat housing. Unlike the 6 cylinder engines previously, ...

If you have been following Race German for a while, you know I have an aviation background. Aviation products hold a higher standard for obvious re...

Fuel hose can become brittle and crack over time. To prevent fires, it is a great idea to check your fuel lines with every oil change. If you see c...

These universal BMW injector retainer clips commonly fall into your engine bay where there is no retrieving.  Replace your lost or corroded clips w...

*NOW OFFERING EXTENDED STUDS FOR AFTERMARKET HEADERS Installing the OEM exhaust manifold studs can be a real pain. Since the stock studs do not ha...

These copper corrosive resistant nuts are the perfect combo for our upgraded exhaust studs. Anytime you change your headers, you should replace you...

We never stop looking for the best possible products for your car. Having a magnetic drain plug for your oil is essential in not only alerting you ...

Replacing your old, worn out injectors is a very good thing.  Unfortunately, many of these clips are rusted, or get lost in the engine bay.  Good l...

Deleting the power steering on your M52, S50, S52 is a very popular modificaiton, especially for track or race cars. When you do this, you have to...

We probably get more questions about how to wire up an electric fan properly than anything else. Because of this, we put together a SPAL EZ fan rel...

Bleeding your M5x engine can be a nightmare at times. BMW set up their cooling system with an external reservoir and bleeder screw. The problem wi...

A common modification is to delete the ASC from your E36 or E30 24v swap car. When you delete the ASC unit, you will need to swap this intake tube ...

The plastic bleeder screws that come standard on BMW cooling systems do their job pretty well. However, they can strip pretty easily if you're not ...

Deleting the power steering on your E36 is a very popular modification especailly for track/race cars. By deleting the power steering you not only ...

One of the biggest causes of check engine lights is vacuum leaks. The OEM rubber vacuum line gets brittle from the heat and the cracks cause leaks....

The oil filter housing cap on the M52b28, M52tu, and M54 is a cheap plastic that can become brittle and crack over time. Because of this, we develo...

BMWs definitely aren't known for their cooling systems, but you don't have to lose sleep over it. All of these cars by now have seen quite a few mi...