waffrx

Just picked up a 02 wrx, it has a catless downpipe and uppipe, intake, and 3" catback but it hasn't been tuned. I was just wondering if it would be safe to still drive it like this until I get a tune? I've heard you arnt suppose to drive if you don't have a tune and you add an intake or downpipe..

Brfatal

Tuning is not required for the downpipe, but still recommended. Regarding the intake, it depends on which it is.