Only just seen this thread.....
I've got a re-map on my 20v. In short, it's awesome.
Filters/servicing needs doing more regularly.
Front tyres will get a pounding - got 12k miles out of my last set of F1's.
Clutch will take a beating, so make sure it's in good nick.
Brakes - you're going to be going a lot quicker, so make sure you can stop in time for the twisty stuff.
Sometimes.....I get wheel spin in 3rd with my ASR turned off....
Black smoke. *cough* this is my only
bugbear. Sometimes its clear, sometimes i leave a smoke screen behind me. I use Forte diesel additive and decent diesel fuel to help matters.
NO supermarket crap - only BP and Shell performance diesels. Circa 99p in our part of the world Dejo.
Next time I'm in Huddersfield, I'll PM you and take you for a spin in my beastie. Or you can meet me this weekend for half an hour north of Sheffield.
You'll be looking at 170-180bhp for your 156 jtd.
Either speak with Nigel or Andy at Angel Tuning. PM me and I'll give you their mobile no's. Good guys and did a great job on my 156 - worth the cost of a call anyways.
Oh and my economy hasn't altered either! Still getting 420-430 miles per fill-up.....roughly 42-45 mpg....