I set up and test run this miniature Harley-Davidson panhead engine, I handmade a custom set of tuned exhaust headers, I design them a certain way to see if I could get that very well known Harley-Davidson engine sound.. and to my surprise it came out absolutely amazing. this thing sounds so similar to a real engine just scaled down. this is a nearly exact scale replica of a Harley Davidson panhead engine it is very very impressive. ENGINE LINKS and Discount Code: Extra 10% off code:wp V2 engine