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The Pittsburgh Power Muffler increases performance and fuel mileage by reducing exhaust back-pressure. Our testing shows as much as a 50 HP increase and a 1/4 mile per gallon improvement. Included with a 1 year 100,000 Mile Warranty.
Save on Performance Sport 387 Peterbilt Stack 5” X 5” 11”W 62.5”L Muffler with a Pittsburgh Power coupon
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