So I just bought six new radium spark plugs NGK. Did the front three no problem but the rear three are covered by the intake manifold unlike my previous VQ 30 so my question is do I have to remove the upper intake manifold? And howany bolts is that. I js have to buy new gaskets and that's it right?

 

Yes remove the UIM for the rear three.

No new gaskets needed if you don't bend it and it looks good.

How many bolts?..
Um...several.

 

Thanks fakie What plugs you use?

 

NGK no matter what, but the type of NGK is personal preference in most cases.

 

Should I get the eBay exhaust. It's so cheap but looks nice. You know the one I'm talking bout right. 6gen It's so cheap I just want to do it. Is it worth it?

 

I wouldn't expect more than a couple years out of a cheap ebay catback IMO.
Your call.