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 th...

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...

The health of your BMW injectors can cause a lot of issues including poor gas mileage, hot spots, cool spots, poor atomization, and lower horsepowe...

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

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...

BACKORDERD, WILL SHIP MID APRIL.We never stop looking for the best possible products for your car. Having a magnetic drain plug for your oil is es...

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...

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...

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...

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...

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...

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...

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

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...

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...

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. ...

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...

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...

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...

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

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...

If you are trying to install a cold air intake on an older BMW that has a M20, M30, M42, or M44, you may find it difficult has the MAF is square, a...

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 ...

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...