Had the ticking noise and found the manifold had cracked, it came off easy so whilst I had it in my hand I took it to my work where the welder welded it up. Whilst I was under the car messing about I though I may as well do the pre-cat removal, piece of piss! could get the O2 sensors off so I just unplugged them. The drilling took about 20 mins then 10 mins of big screwdriver work and 5 mins of cleaning up.
My questions are, is the weld likely to last or like I think will it fail after 1 month?
Would it be best to disconnect my battery and reset the ECU before I take it out?
I havent got a performance air filter yet, which is the best for the money? pipercross at £30 or K&N for £40?
Thanks for your time.