I'll probably do it in stages so I can get a feel for the difference.
Muffler first, then headers + cats a few weeks later.
If anyone is interested in seeing dynos on the power gains, I'd be happy to get some dyno runs if everyone wants to pitch in for the costs! :P
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2010 BMW 335d "Ha! She wants the D."
2006 VW Jetta 2.5
Once upon a time...
'03 VW GTI, '99 Audi A4 1.8TQ, '00 VW Jetta 1.85T, '09 BMW 335i xDrive, '04 BMW Z4 3.0i, '01 Audi TT 1.8T, '04 Volvo S80 2.5T
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