ha, well that is good to hear, Ive always held off for the last 2 years doing it because I just didnt want to mess with my DD.......this changes everything......

 

Be careful though, once you start modding, you can't stop. As Bram said the only thing you really should do is go a step colder with the plugs. I just turned 300,000 miles and I have been running a 15% for most of that time, along with quite a few other mods. I'm at the point that my next mods would be a head, cam, injectors, and a tune. And obviously this is my DD, I have not once been stranded.

Stop waiting, start modding

Nik

 

Oh trust me I know how the modding bug works, luckly me I ended up being okay with a wrench.

GTO started out as just a cat-back system for tone, and well three years later only way to get more is to boost or build a new block......but its okay I wont do that with the mini I keep telling myself

 

I figured by your sig that you had been bit before

 

Yeah. Get off this forum and go mod your MINI.

 

To be clear, you don't NEED a tune with the 15% pulley. The car will run fine and the injectors can handle it without a re-tune. However, you will get the most benefit performance-wise if you do re-tune after the pulley.

 

yes, no , no, yes
I've got a 17% on mine (2005 mcs) and that is the size that I recommend. I've heard that colder plugs are not needed unless it is modded further. I use the stock plugs and wires and coil and it works fine.