This billet reservoir is ideal for car enthusiasts who own an EK Honda Civic, '98+ DC Acura Integra, or 2000 - 2005 Honda S2000. It's perfect for those who want to upgrade their vehicle's look and performance. Use it when you're looking to replace the old, cheap plastic reservoir in your engine bay. While specific size and weight details aren't provided, you can expect a well - made, high - quality replacement that fits your stock master cylinder perfectly.