put on the shm headers... drove to the muffler shop with open headers and a nice little leak. can't find the leak, and i am getting a pinging/knocking noise... not sure if it is releated to the leak, or something else entirely. i will say this tho, even with an MIL, exhaust leak, and the pinging, i am still getting a really large boost in low end torque from these babies
but i really want to get this thing 100% before i go dyno it... not really fair comparing values from a healthy contour (sans shm headers) and a limp contour (with the headers)
