this is the random technology downpipe with cat. it bolts up to the stock cat back or any other 2.5. the pipe is about 6 months old and is the new design. i mean the one with the smooth piping no ripples in the down portion. the new smooth downpipe design and small looking cat. I am asking $250 but can be negotiated. the only reason i am selling it is because i have run out of room on my gtp and i still want to drop a half a second and manifolds aren't gonna cut it. i need to get headers which means the downpipe has to go.