Exhaust Manifold Question

[Bobbafett 49 2 Cars]

I'm taking off my Magnex manifold to refit a standard one (and I also then want to refit the original airbox) but I can't remember which holes are used to affix the airbox bracket onto the manifold? Number 5 is a no-go, broken about 10 drill bits trying to drill out the broken bolt but I think it must be made of bloody titanium or something! I managed to tap the other ones ok though.

 

So, which numbers are used for the airbox bracket? And are any of the others used for anything?

 

Thanks!

 

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Edited February 1, 2016 by Bobbafett

[Tom Fenton 1,542]

4 and 5 for bracket

[Bobbafett 49 2 Cars]

s*it! Better buy some more drill bits then. I do have another manifold coming from a member on here might have more luck with that one.

[Tom Fenton 1,542]

Nice and slow. Sharp drill. Plenty of cutting oil. But if you've been at it with a blunt drill and got it mega hot it will have gone hard and you may struggle.

[Bobbafett 49 2 Cars]

Got there in the end. Got through another 10 drill bits though! Managed to get it deep enough, fill it and then tap an M5 which will do the job!