Will, I have a Skyline pipe, not sure if it's the same one that you have, but it's just like a 053, good bottom, top end kinda lags, runs out to soon, the 086 has great bottom, and very linear, try one, I think you will like it. Have'nt tried another car insert yet, I want to see what the mileage is first, then decide, may go with a 7mm insert.