If you're a DIY'er and want to build a custom Spec Miata exhaust, this is the muffler to use. Build your own system around this known-good Magnaflow muffler, the same that's been used on the Springfield Dyno SM exhausts for years.
MagnaFlow Performance mufflers are 100% stainless steel and lap-joint welded for solid construction and rugged reliability even in the most extreme conditions. They feature a free-flowing, straight-through perforated stainless steel core; stainless mesh wrap and acoustical fiber fill to deliver that smooth, deep tone. MagnaFlow Mufflers are packed tight with this acoustical material to ensure long life and no sound degradation over time.
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