i have had many many ebay exhausts...probably close to 10... and its all i will run. stainless steel piping is stainless steel piping i dont give **** how much you pay for it. they are mandrel bent, the welding is very nice, they fit great, and they dont sound that ricey...infact they are pretty low toned and quiet. i have heard $700 dollar systems that sound like a dying giraffe and my ebay **** is quiet. you do what you wanna do but if i were you i would buy ebay exhaust and save the remaining $400 for something that actually makes a difference.