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Flowmaster 8425453 Super 44 Series Muffler, 2.5 In/ 3.0 Out
Flowmaster 8425453 Super 44 Series Muffler, 2.5 In/ 3.0 Out

Flowmaster 8425453 Super 44 Series Muffler, 2.5 In/ 3.0 Out

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Flowmaster 8425453 Super 44 Series Muffler, 2.5 In/ 3.0 Out
Flowmaster 8425453 Super 44 Series Muffler, 2.5 In/ 3.0 Out
Flowmaster 8425453 Super 44 Series Muffler, 2.5 In/ 3.0 Out
Flowmaster 8425453 Super 44 Series Muffler, 2.5 In/ 3.0 Out
Flowmaster 8425453 Super 44 Series Muffler, 2.5 In/ 3.0 Out
Flowmaster 8425453 Super 44 Series Muffler, 2.5 In/ 3.0 Out
Flowmaster 8425453 Super 44 Series Muffler, 2.5 In/ 3.0 Out
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Flowmaster 8425453 Super 44 Series Muffler, 2.5 In/ 3.0 Out
Flowmaster 8425453 Super 44 Series Muffler, 2.5 In/ 3.0 Out
Flowmaster 8425453 Super 44 Series Muffler, 2.5 In/ 3.0 Out
Flowmaster 8425453 Super 44 Series Muffler, 2.5 In/ 3.0 Out
Flowmaster 8425453 Super 44 Series Muffler, 2.5 In/ 3.0 Out
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Part # 3788425453
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Important Messages:

  • This product is discontinued.
  • This item ships directly from the manufacturer. It may take an additional business days for Flowmaster to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.
  • This item 3788425453 is made to order. It will be shipped from our warehouse when it is produced.

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Flowmaster’s Super 44 muffler delivers a powerful rich tone and is the most aggressive, deepest sounding, highest performing 2 chamber street muffler we’ve ever built! Available in 409S Stainless Steel with a Lifetime Limited Warranty, these mufflers feature our advanced Delta Flow Technology design and are fully MIG-welded for maximum durability. This new dual in/single out configuration is perfect for applications that require one muffler for both exhaust pipes to pass through and has 2.50 inch dual inlets and 3 inch center outlet with 3.50 inch internals for maximum performance.
Some parts are not legal for use in California or other states with similar laws/regulations

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  • Pat shows that exhaust can make a difference on even your daily driver. Check out this video of Pat with the Hooker Muffler installed on his '03 Suburban.
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  • Maintaining your headers is an important part of any hot rod. Pat gives some tips and demonstrates how well Purple Metal Polish works for keeping your headers looking great.
  • Jeremy explains the different options of headers that Speedway Motors offers for Demolition Derby cars. Watch this video to see a variety of options and the benefits of certain headers.

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