ok ive seen the precat how to guide ive neither the time or the tools to do this can i buy a precat already drilled or replacement alltogether seen the ones on ebay but im sure they are for gsi turbo models not the z22se dont know where to look or if someone is around portsmouth way and dont mind getting some squid thrown there way to do it for me even better thx guys
just found this :
System: - Headers
Material: - Edelstahl Material: - Stainless Steel
TÜV: - TÜV-Teilegutachten / Abnahme nach §19.3 TÜV - TÜV parts certificate / decrease according to § 19.3
Verwendungsbereich: Application:
Opel Zafira A Bj. 98-2005 / yoc 98-2005 Opel Zafira A Bj 98-2005 / 98-2005 yoc
2.2l 16V 108kW Z22SE / der Original-Kat. 2.2l 16V 108kW Z22SE / the original cat. muss eingeschweißt werden must be welded

Stainless Steel Headers 2.2l 16V Opel Zafira A Z22SE
Artikelzustand: Condition: Neu New
Preis: Price: EUR 360,00 + 40.00 shipping = 400 Euros = £348.90 British pounds
(inkl. MwSt.) (Incl. VAT)
or can i buy cheaper UK and where lol