Hi Im after a remap shortly on my Version 3 Sti.

If i were to change the diameter of the exhaust after a map would it need re-mapping? or am i better off doing this first?

Also, will i need a better fuel pump? im running a full decat and an induction kit

Thanks

 

best to get all the mods done first.

Anything that increases power or influences air or fuel entering the engine, or exhaust gasses leaving the engine / turbo will effect the map within the ecu.
Some changes have little effect like back box change of same diameter etc.. but I have seen alterations to fuelling between makes of the same diameter exhaust so it would be best to get all the mods on before it is remapped or get it checked after to make sure it is still running at optimal

Simon

 

oh and I would be inclined to change the fuel pump on the sti3 yes.

Simon

 

Thanks Simon,

Didnt want to bombard you with mails lol.... Ok well ill get all the parts fitted and then ill be down for a power FC please

Cheers bud

 

no problem..

feel free to email if I can help.

Thanks
Simon