Billet diff covers are getting more popular nowadays, but what do they really provide? What are benefits they bring over factory covers?
If they are designed and manufactured properly, they will provide many benefits:
1. Improved cooling
2. Higher stress resistance
3. Larger oil capacity
4. External oil cooling (radiator-pump)
We engineered our first cover almost a year. And during this period of time, we took all those aspects very seriously. We did many tests to reach to perfect design with all those features included. And finally we are proud to present to you the ultimate billet rear cover for BMW E30 188mm differential. Hope you'll enjoy the video.