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#1
17-07-2015, 11:40 PM
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Exhaust
Hey guys, I am looking at buying a 3" tbe for a 05 WRX, is it a must to get a tune? Or can I a bolt it on with no worries? I am getting a lot of mixed opinions on sites and forums would like to know the what you all think.
Cheers 
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#2
18-07-2015, 12:05 PM
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If you want performance gains from your exhaust, get a turbo back and get it tuned.
If you just want noise/rumble, but a cat-back and don't worry about a tune.
__________________
[I]trolololol[/I]
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#3
19-07-2015, 03:26 PM
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With a turbo back and no tune you may occasionally get a check engine light come up. Code P0420 which is cat below efficiency threshold. Can be cleared with scan gauge. But better off with a tune
using the Perth-WRX mobile app
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