My car recently had the manifold welded as it had a hairline crack but it looks in fairly poor condition so I want to replace it but I'm unsure of how much I should pay/brands etc.
Can you please help?
Can of worms LOL,
You can pay anything from £150 -£5,000 for a set of Headers
As yours is a UK car might be worth You may getting on Ebay for a second hand direct replacement.
There are quite a few variant of material from cast, steel, Stainless. titanium and ceramic.
Then there are Two "shape variants" Un-equal length headers and equal length headers. The un-equal lenght give the Scooby it's burble but the Equal you lose the majority of burble but get some power gains.
There is also later 2001 on Jap variants that are equal and twin scroll turbo
if you want new try
Scooby worlld, japspeed,RCM,MilteK to name a few.To be honest I've fitted lots of Magnex & Miltek stuff over the years and found the seem to fit Great and have not of problems with others above.
IMHO Magnex is budget price systems but always seems to be good value for the money and simply fits well
BUT be wary of some cheapo "ebay" exhaust sometimes not a great fit, and heard they struggle to get them fitted and to keep gaskets rom leaking. or they crack under stress. but maybe due to exhaust or inexperienced "fitters" LOL.
Ps IMHO never fit cheap Tyres or disks and pads. There are good quality ones out there a tad dearer but the cars worth it.
Avoid 95oct fuel and use 97+oct,
Used Good Oil
Always do a mile or so "Off boost" before turning off engine.
Avoid fast sharp right hand corner with under 1/4 tank.
Be carefull washing car with engine running or Tooo much Oil on an Air filter or "induction kits" the V5 & V6 MAF sensors are quite delicate and either will **** them. car will run lumpy or not at all. (sometimes works) disconnect and get home steady off boost. buy the insert £60-80 ish