i know there's 1,000,000 topics about this i cn search through but it's always better for me (and easier

) to ask for myself.
i have a mk5 gt tdi - non sport 140bhp. i'm soon getting £1000 and being as dumb as i am im looking to blow most of it on my car. i've asked a few ppl i know and they always say "all you need is a remap for a tdi"
but would i need some sort of custom exhaust with a bigger diameter than standard, do induction kits do anything for diesels and if so how much uglier would the engine noise be?
i jus need some suggestions, with price tags and estimated bhp gains) on what will be the best options for getting my car closer to the 200bhp mark

thanks