Siouxland Subaru Club and South Dakota
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07-30-2011, 12:51 AM
2010 LR WRX
Oh, haha, you really don't need aftermarket cat back, the downpipe is what matters. There's a thread in the noob section discussing this. You'd miss out on a couple horses, but you'd gain most of that back if you'd add it post tune.
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