E21-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...

Installing the OEM exhaust manifold studs can be a real pain. Since the stock studs do not have a drive end, you need to "double nut" them on and o...

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...

Have you ever gone to remove an exhaust stud and the stud and nut comes out as a pair? Have trouble installing exhaust studs by having to double nu...

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...

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 ...

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...

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

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....

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 very popular upgrade for track cars. By replacing your original 92 degree thermostat with a 71 degree thermostat, you are allowing the coolant t...

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

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...

Poly transmission mounts are a great way to tighten up your shifting experience. We have tested many mounts over the years and believe Revshift mak...

There is no denying that SPAL electric fans are a great upgrade over the stock electric fan or mechanical clutch fun. But purchasing the fan is on...

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 ...

Hose clamps, hose clamps, we could have a whole discussion on these, but when it comes down to it, the last thing you want to do is use cheap big b...

Changing oil is an inevitable necessity on not just BMWs but all cars. It is not always the most glamorous job, but it must be done. If this is a...

Most of the time, the places you need to tap into the oil system aren't in the greatest position. It is usually in a spot that is hard to get to. ...

Fuel starvation in high g corners, especially below a half tank, can be a major problem on track with your E30 or E36. This problem has now been s...

A popular upgrade on BMWs is to switch from a 3" MAF to a 3.5". The 3.5" MAF can be found on 540i, 740i and some porsche models. To accomplish thi...

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...

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...

We recommend this relay harness for wiring in single or dual high flow fuel pumps. This harness was built with the BMW 3-series in mind.  Wires ar...

This aluminum heat tape is flexible with a super strong adhesive backing. This will thermal insulate up to 2000 degrees F. Made of one mil aluminiz...

I love goooooold. This high quality gold heat tape is the perfect solution to wrap and protect wires, cables, hoses, fuel lines, intakes, charge pi...

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...

If you are trying to install a cold air intake on an older BMW that has a M20, M30, or M42 you may find it difficult has the MAF is square, and mos...

Introducing our M20 oil filter relocation kit. This unique kit is required to mount turbo exhaust manifolds or aftermarket headers. Our kit comes w...

Solid bolt through 70D polyurethane trans mounts. Recommended for race use only.These trans mounts fit almost all BMW cars excluding the E30 M3 and...

When I first used this product, I thought it was magic. Originally developed for the US military, this self sealing tape is a must to keep in your...

Our high quality 3" silicone couplers are perfect for attaching cold air intakes to your MAF sensor. These couplers are made from 4 ply reinforced ...

If you're looking for stiffer motor mounts for your M10 E30 (318), this is it. We have used and tested all different types of bushings over the yea...

Designed to work with our ACS Sanden Compressor Bracket, these new (unused), genuine (green-label) Sanden compressors are direct from Singapore and...

Designed to work with our ACS Sanden Compressor Bracket, these new (unused), genuine (green-label) Sanden compressors are direct from Singapore and...

There are many reasons you may want to convert your rubber fuel line to an AN system, and this adapter makes it a breeze.  Add an aftermarket fuel ...

Looking to have your BMW fuel injectors rebuilt but don't think you have the tools or are up to the task?  No problem.  We are now offering an inje...