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Discussion Starter #1
Does the the 250 and the 350 share the same stock headers? I am replacing my stock 350 headers soon. I am going with the Mazzuri headers, so I'm just trying to get an idea of what I can expect as far HP gains.
 

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The stock pieces are the same size, yes.... the Mazzuri headers are -not- the same size between 250 and 350 though... same primaries but larger collectors on the 350 Mazzuri headers IIRC
 

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Discussion Starter #3
So then us 350 owners should expect a lot larger increase in power than the 250 guys. The 250's are getting what 26hp and 31tq? The 350 should be about 32hp and 38tq, right? Or could be even larger..?
 

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In theory, yup, gains should be larger than observed on the 250.

In real life? Nobody knows till it's dynoed. Ideally before/after, on the same dyno
 
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