Hey if you are looking for extra legs in your engine our Hong Nor 2047 pipe (10074) has some outstanding power on both ends but more for the top, they are hard coated and last a good amount of time. Yes I'm pluggin our product but my BTT loves the pipe and I have given my pipe to several guys at Revelation and made them pick up performance on several types of engines. Our Jp-pipes have been sellers and still sell but this one even though not name a JP would be like a JP-7 of our line of pipes.