Hi all, i hAve got a scooby wagon from 2002 fully standard.
One of the first modifications was to decat 2nd pipe with a scorpion pipe and fit a backbox from powerflow. Will i hAve any benefits on doing this? Thanks, cheers

 

might be a little faster on spool up if it's a turbo (2nd pipe post turbo?) but probably not much till you re-map the ecu which is probably advisable as you might be running a little lean now (getting hot?) if you're gonna do that get rid of the pre turbo cat if there is one first, better flow/spool and saves money in the long run. If it is getting hot ie cooling fan running more remap before you thrash it and NEVER thrash from cold. Warm is about 10 min AFTER the water is to temp.

 

Hi forgot to mention that my scooby is a wrx!