Funny thing is a system for an '08 Accord V6, with the same exact mufflers and basically the same amount of material sells for $400
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Read they drone quite bad on the M3 on another board. But many other systems don't have resonance chambers either, so might not be any different. Magnaflow is usually a great value for the money. They have great tips, polished mufflers, and all s/s construction, but their welds suck (at least in my experience with a GTO system).