Having priced up the manicat for my 1.8 astra coupe (£780ish) it seems I have the x18xe1 engine. If im right in thinking, they dont sell the manifold and cat as one piece for that engine do they....?
If i was to buy the englarged manifold from lexmaul (350ish) and a separate 200cell cat would I still seek a similar gain?
no other mods done to exhaust.
Iv seen people on here seem very impressed with this mod ... any personal opinions would be welcome.