Welcome. I just bought mine about 3 months ago and I love it too. What seems to be the popular and inexpensive thing to do is have the resonator cut out and replaced with a straight pipe. I had it done at Mieneke a month ago for 60 dollars. Made a big difference and is ALOT cheaper than getting new mufflers.
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2007 GXP Stealth Grey Metallic
Best Beltronics Accelerometer Times so Far: 0-60: 5.40 1/4: 14.22 @ 98.6