Dissapointing performance
We build custom headers. I would run these Dusterguy headers over a stock cast iron header any day.
Except when they look like this:
That's his "headers". 1-5/8 tubes into 2 inch collector. Tubes are different lengths, eliminating any scavenging effect. Hi Pro 340 manifolds have a bigger collector. So yes. They are worse than headers or manifolds. In my opinion.
We build custom headers. I would run these Dusterguy headers over a stock cast iron header any day.
