Ok, ok - the 50mm (missed off the sentence) dual-pipes that were (from Nissan) and still are (from Fujitsubo) commercially available are better suited towards the smaller cc engines (S20, L20 and L24) than larger.
There probably are but you're saying that you don't know of them ?
An E and D-Type have twin pipe systems (admiteddly the D(Type are VERY short) but both they have ridiculously short primary pipes compared to an L-gata and both are DOHCs.
So why is it that headers and lines are so 'drag' biased ? Only motorsport competition open (read affordable) for most owners ?
Thanks for the info - and so, again, a small cc, high revving engine...presumbly the pipe diameter was scaled up because :
a) it'll match the combustion chambers' demands
b ) it could fit under that model of car
How big is 'big' basing the sandard diameter at 50mm ?
I think you missed the point - Alan was talking scaling up - not me.
Re importer - of course but relevant here because they were quoted AND are the N-American official importers : nice to see the extra model-specific info in there - good customer-advice.
Interestingly, the RHD Legalis image shows two seperate resonator pipes as per the Spirit Garage version whereas that listed on Whiteheads' page is of the 'H' crossover design.
Yes, they do work but you're comparing the incomparable : a modern '90s, DOHC, variable valve timing, high revving engine to a relatively lazy SOHC conceived in the mid-60s.
I don't think that packaging is such an issue within the JDM which is for where all of these parts are destined. Do you believe that the new Fujitsubo offers more performance over the previous model or simply easier to fit around bigger diffs and with much better cround clearance which would (for me) be enough of an advantage in itself ?