jonspeed

Had my sti version 5 ecutek mapped by Bob Rawle , already had a 3in decat down pipe fitted with a Milltek centre and rear box all 3 in also . Car was very quiet so took back by and centre box out and now have a full 3in no boxes system . So as above will the map need checked ?

The Rig

iTrader: (13)

Hmm , possibly , won't be the harshest upgrades to cause knock tho so I wouldn't be overly worried but on a run it may need a fuel tweak

bludgod

iTrader: (3)

seconded, maybe get it fired on a dyno to check fuelling and listen for knock to give you the all clear

mjp02wrx

As you already have paid for the license I would get it checked for peace of mind, you have changes the flow of the exhaust and a tweak will make use of the change

IainMilford

iTrader: (15)

Buy some more upgrades to make the tweak seem more worthwhile !!

joz8968

iTrader: (13)

Out of interest, what turbo/injectors? What figures did she produce?