Are dented headers bad?

“Yes. Every gearhead worldwide has found the need to put a dent in an exhaust header tube at some point, and people always worry that it will hurt power.

Do dented headers affect performance?

1) The dent will affect the way the header performs, whoever says otherwise is wrong. Any sharp turns, dents, or obstructions in the pipe will affect the way a header is suppose to work.

Can headers be repaired?

The good news is stainless- and mild-steel headers can often be repaired to like-new status for a significant cost savings over replacing them. That heat makes the tubing of the headers a lot easier to bend.

How do you dent headers?

There are several methods to dimpling a header tube. Most folks just go bananas with a hammer, but this leaves an ugly mess that while effective, is not very scientific. Others suggest filling the tube with sand to add some resistance; supposedly this makes a more uniform dent.

How do you get dents out of header pipes?

Just fill it, and stand in freezer overnight, and do it again until dent comes out. No need to plug the ends, as the water freezes in the ends first and expands in the center. Big dent and crease gone.

Do dents affect exhaust?

A dent in the head pipe will hurt both the bottom and the top (and the fall-off before peak will be significant). (2) The typical rock dent in the pipe’s first cone (approximately 10 inches away from the exhaust flange) is nothing to worry about.

Does a dent in exhaust matter?

it needs to be replaced. (2) The typical rock dent in the pipe’s first cone (approximately 10 inches away from the exhaust flange) is nothing to worry about. Although it can cost some over-rev on top, it does not hurt horsepower at or below peak (quite the contrary). (3) Center-cone dents are not a big deal.

Can headers be welded?

To make the headers we used a TIG welder almost exclusively for welding the tubes together, mostly because heat is easier to control than a MIG. You can use a MIG welder, however your weld beads will be larger than with a TIG machine. You don’t need a lot of heat when welding tubing.

Can you weld a cracked header?

Welding a cracked exhaust manifold can save you a lot of money. The task can be done with just about any welder meant for steel. The most important part of welding the manifold is the preparation work; a well-prepped welding job goes very smoothly.