Originally Posted by shika805

I have tackled it again. I've been busy work and it's hard to fit time for the z. I'm going to tackle this thing again when my friend has time for my car at his shop. I'm waiting for his nice tools. Haha



There are some significant gains with long tube headers. Once you start looking at your stock cats and exhaust. You can see just how much restriction is on our cars. I agree with Shovel also, shorties won't give you as much gains but momentum headers. I've heard of good reviews.