Exhaust question on Top Speed Pro
Im looking to change the exhaust on my 09 370z, but I have no expience in purchasing, or istalling them. I would like to achieve a louder than stock tone with either the same weight or obviously less. I saw this Top Speed Pro dual axleback muffler that uses the stock mid pipe for 275 on ebay. Sounds good, as I saw videos of it installed on a g37, but I would like to know if this is in fact an upgrade and not a downgrade. I really appreciate your help on this....
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