Hey guys, I've just been reading through the fitfreak forum and there has been some mention that using bolt on mods without ECU remap would be close to useless?

I have put on a new SRI and done a full catback to my GE8.. I was wondering if ECU tuning would make much of a difference to my car's performance?

Thanks.

 

Sorry for a double thread post, please reply on this thread

https://www.fitfreak.net/forums/fit-...tions-ge8.html

Thanks.