[Z06] Header Primary Tube size Question
Thread Starter
Le Mans Master
Joined: Dec 2005
Posts: 8,582
Likes: 968
From: Communist Colorado
Header Primary Tube size Question
I have an older set of headers on my car. They're TPIS Lt's. I also have Random Tech hi flow cats and an X pipe. The primary size of my headers is 1 3/4" I was think ing of getting a new set or a slightly used set. Should I go up to 1 7/8" primaries? I just put a Torquer V2 cam in it and dynod 411/380. Im thinking I should be able to improve my torque with the 1 7/8". Would this be wise or should I just leave well enough alone?
Le Mans Master
Joined: May 2005
Posts: 6,366
Likes: 249
From: Fort Lauderdale, Florida
Unless you are doing more mods like heads, compression or forced induction, the 1 3/4" is ideal for what you have. Going larger might actually kill low end torque because the larger tubes would slow down exhaust flow without further mods. You need to keep the exhaust flow speed up. Besides even if it would provide any increase, the performance difference wouldn't be enough to justify the expense and effort.
