[Corroded floor nsr]

Found out in December that I have corrosion on nsr floor could this be water coming in through boot as seem to get water in spare wheel well. Saw a post on here that someone drilled out two holes to drain water. Does this actually work. And are there any dangers under the wheel well to be aware of before drilling holes in it? 

[Jazz rear brake caliper handbrake adjustment]

I fitted break pads and discs in December took a few weeks to wear in but still not that good on hills. Even Honda say to leave car in gear when using handbreak. 

[Induction kit honda jazz 2004 1.4]

Hello everyone, I'm new here and was wondering where I can get an induction kit that includes the crack breather filter aswell as cold air intake. I'm not looking for k and n as it's redicules on price. Many thanks in advance.