Header Pipe questions

[NRPkfx400]

Ya so I want to get a new header pipe on my kfx 400 and my dad thinks that this could hurt my engine or is bad for it. someone please explain that exhaust systems are not bad for the engine.

[drzoo2]

Bad for the engine if you don't properly jet after you install it. Technically, your creating a bit more HP so it would wear out a fraction faster than if left stock.

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