E21-Engine

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...

Attaching the oil drain line on our turbo can be a challenge.  Because of this, Rally Road created an extended turbo oil drain fitting to make it e...

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 ...

This is a common crush copper crush washer gasket used all over the BMW engine. The most used application for this gasket is for the radiator auxil...

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 ...

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...

When you have to deal with different fuel components, it can be a challenge to stop the fuel flow easily. This is especially true when replacing fu...

The rear main seal on our BMWs commonly leak and should be replaced.  It is also recommended to replace this seal anytime you remove the transmissi...

The OE quality flex joint is made of high quality rubber and is reinforced with advanced fiber materials. The manufacturer recommends the flex disc...