Here's the next problem then.
Based on Tom's post, true dual system is the best...that's all well and good, but for packaging reasons, I can't do that.
What's the best option for a single sytem, with no cats and the standard headers (I have to use them).
The other thing in the back of my mind is the 4 cylinder Subaru engines have different pipe lengths from the extractors...is this again a packaging exercise or are there reasons that they've done this?
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