I've just de-catted my o4 wrx, down pipe and up pipe plus center section, was wondering if i need to do any thing after this to make the car fuel right, ie pump and regs or remap, not to sure, any advice would be great, cheers guys..

 

remap.

 

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The man speaks sense

 

What about the fuel pump guys will i need to install a 255?

 

I had a Walbro 255 pump fitted to my bugeye WRX when I had it remapped, more as a precaution than a requirement. However when the mapper got it on the rollers he did ask me whether I had an uprated fuel pump and seemed 'pleased' (if that's the right word) when I said yes.