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Discussion Starter #1
I was gonna get a catless downpipe and a decatted uppipe to put on my 02 wrx when I replace the clutch since I'll be able to use a lift when I replace the clutch I'm gonna add those exhaust mods. So would I need to get a re-tune after those mods? I already have a CBE.


Also the stock air box is completely fine correct? They aren't that restrictive to begin so upgrading to a CAI wouldn't really do much for me on a 02 wrx right? That's what I've heard anyways.
 

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You don't need a tune for the modifications on your car, but you won't get near the benefit you would if you were to tune the car.

An intake isn't necessary at StageII 2.0L WRX power levels.
 

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What EJ said.. 16-bit ECU doesn't require a retune for downpipe, but there's going to be so much more power and smoother delivery with a tune.
 
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