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4 into 1 headers 444-544

posted by  hans on  Sat Aug 21 12:14 CST 2010
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last visit: Sun Oct 19 15:26 CST 2014
[RELATED]

I'd be tempted to try the 4 into 1 headers, I know that design is quite critical on these and that Volvo R sport did recomend the cast iron manifold but when you look at its design, specifically the way no 2 and 3 ports are only separated by 15-20 mm I'm a bit dubious about it. I've heard it described as a rev limiting design and its possible for one cylinder to suck in exhaust gases from its neighbour. But I don't really know and I suppose you should try both.






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