E34-Engine

OVER 5000 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...

*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...

OVER 3000 KITS SOLD! BMW introduced VANOS in the early 90s, and it added variable valve timing to their famous straight six. Over time the VANOS un...

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...

Are you looking to push some serious air? There is no denying that BMW does not always have the best cooling systems. In fact one of the first thin...

*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 ...

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...

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 ...

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

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...

*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...

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...

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 ...

A very popular upgrade for track cars. By replacing your original 92 degree thermostat with a 80 degree thermostat, you are allowing the coolant 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...

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 ...

This little piece of foam is one of the biggest issues causing your sloppy shifter feel. This is one of the most neglected items in your shifter as...

This is the correct vacuum hose for your BMW. Do not try to use the standard size (1/8, 3/16, 1/4) vacuum lines from your local automotive store. T...

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

If you are looking for a way to tap into your coolant system to install an aftermarket temperature gauge, than look no further. We use a brand new...

If you are installing aftermarket headers, or a turbo manifold, it is most likely the stock exhaust studs will be too short.  Our extended exhaust ...

What do you get the guy that has everything? The final touch to his fan clutch delete. This machined cap is anodized black and covers the threads o...

The M20 oil cooler delete is a very common modification for street and track cars. The oil cooler adds extra weight, complexity, and fluid to the s...

The OEM BMW water pump pulley on the M5x series of engines is plastic and can easily become brittle and break.  We have been selling our aluminum w...

Over the years of the engine bay heat cycling, the injector plugs can become worn and brittle.  When this happens, the plugs can break, leaving you...

OEM BMW Oil filters. Simply that. Filters will be Mann or Meyle depending on availability.

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....