wow thats a good find ross,
but on closer inspection thats -4 or -3 both ends so would require additional piping and fittings to fit it.. which would add to cost.. so it isnt the specially made item for direct fitment to the 106 heads advertised for £25 elsewhere that you mentioned.. as these are not an- 3 or -4 on the heads.. so wouldnt fit unfortunately
not without using various adapters (again adding to cost) but making the fitting far too long and possible prone to snap... so a custom fitting was required and designed.. i waited 6 months for them to arrive!
elsewhere:
http://atspeedracing.co.uk/products/...roducts_id=299
- colin.