Induction And Exhaust 

that u do, but there is plasted around the radiator, i think its to direct air to the radiator, well ive removed this so the heat soak isnt as noticable

its a system made by a company called GT3, i bought it off ebay if u go on ebay, and look for a company called gt3 exhaust thats where i bought mine from

with regards to your mods, dont you get any heat soak i hear there is a lot o heat soak with unsealed air filters, true?

my cat back system only cost £130, but they have gone up to £140 + p&p