vocky Thorney Motorsports, Milton Keynes, are soon to release their version of a 4-1 tubular manifold it will be a direct replacement for the standard cast item 8)
luna_s doesnt sound like its going to be cheap, guess im going for the weapon R, seems the better option anyway
JohnnyN Do you know if it will fit on the Vectra B?? I phoned Regal yesterday and they do a bigger cast manifold at £380, a 4-1 stainless manifold inc. downpipe for £411 and they do the Lexmaul for £700 odd pounds. notsure.gif
vocky I wouldn't bother with the dbilas, a nice 4-1 tubular manifold is what you need, it weighs less too :lol: the tms item is a direct replacement for the standard z22se item, so should fit all euro z22se engined vehicles, as should the regal item
JohnnyN vocky said: just read TMS got a 18bhp increase after fitting their new 4-1 manifold :shock: I emailed John Thorne a few days ago about the new manifold. He says that its primarily for the VX220 but there will be scope for it to fit into other 2.2 chassis'. He warned me that its not going to be cheap but he's unsure of the final price.
vocky does seem a bit high, but the power gain was on a tweaked vx2.2 - cams, head, remapped I would have thought about 5 bhp from a 4-1 and maybe 10 bhp from a 4-2-1 dunno..