Does installing a downpipe need tuning?
I'm wondering if I would need a tune after installing a downpipe/test pipe and removing cats on a 2010 RA. I'm coming from the WRX world where the 02-03 didn't need tuning whereas the 04+ did due to fuel cycling issues. Thanks for you help.
Last edited by ever12; Sep 24, 2011 at 04:08 PM.