Owen_Spence Hi from Carlisle just got myself a mk4 2.2 astra hatch. Just wondered if anyone could send me a tuning guide for these engines whilst staying N/A.
vocky Hello and welcome to the site 🙂 Plenty of things have been done, the first is the precat delete, then you can port the throttle body and after that a 4-1 exhaust manifold works very well as do Piper cams https://z22se.co.uk/forums/tuning-discussion.115/