Quote:
Originally Posted by KT86
would i need to re-tune changing out the stock airbox with K&N drop-in filter for the perrin? link me to your build please?
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At the bottom of each of my posts my build link shows as:
Current:
2013 Lightning Red Subaru BRZ Limited
Click on that.
If you were still running the stock tune you would be ok, but replacing intakes or exhaust before the catalytic converter especially with super/turbochargers would run better and safer with a good updated tune.