Yep I made it myself, I saw the one on ebay like you have and decided that i was not going to spend $45 plus shipping to get one. So i went to the hardware store and got some copper pipe and made it myself. It only cost me $20...... As performance goes, I lost alttle Toqure do to lower back pressure, But I will be installing a baffle inside the main chamber then it should be fine. I'll have to see though i havent tried racing it yet with that new system.....
Rob