I installed the the TA stock replacements yesterday. Excellent product. The only problem I had was that the #5 header tube was contacting the steering shaft, possibly because I have hr motor mounts. I used a ball peen hammer to dimple the #5 tube and I installed them without a gasket, only a thin smear of ultra copper around each port. Not using the gaskets also gained me just a little bit of clearance from the steering shaft. I probably could have loosened the motor mounts and tried to move the engine slightly. No exhaust leaks and sounds great.