Here’s the latest reader question, along with my reply!
Mike asks: I’ve been considering installing headers on my truck, which I think is a truck like yours – last generation (small body) Nissan Frontier with the four cylinder engine. Have you done this to yours and would you?
My reply: I’ve thought about it. I haven’t done it because the reward to cost ratio doesn’t seem favorable. According to what I have been able to dig up in terms of hard data, you can expect to get maybe 5 more horsepower by replacing the factory manifold with the header. This is not much difference. But the cost is a couple hundred bucks in parts – and more if you don’t do the labor yourself.
These kinds of swaps made a lot more sense back in the day, when factory manifolds were both very restrictive and very heavy. You could really open up (and lighten up) a vehicle by making this swap.
It’s less so now. But, the headers still sound great – and that may make the swap worth it for the both of us!
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