Home » Jeep Exhaust » Mufflers » Flowmaster Exhaust 40 Series Delta Flow Performance Street Muffler for 79-86 Jeep® CJ5 & CJ7

Flowmaster 40 Series Delta Flow Performance Street Muffler for 79-86 Jeep® CJ5 & CJ7

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Designed to minimize interior resonance, the 40 Series Delta Flow Muffler offers an aggressive exterior tone. The 40 Series Delta Flow helps increase torque and horsepower on many late-model performance cars and trucks. Available in Aluminized and 409S Stainless for harsh weather applications.

The Original 40 Series muffler delivers an aggressive exterior and interior tone. If you're looking for that original " Flowmaster Sound " this is the muffler is for you. Constructed of 16-gauge aluminized steel and fully MIG-welded for maximum durability.

  • Durable Fully Welded 16ga Aluminized Steel
  • Aggressive And Powerful Exterior Exhaust Tone
  • Notable Interior Resonance
  • Excellent Street/Strip And Off Road Application
  • No Internal Packing To Blowout
Installation Notes
Installation Difficulty:
Level 2Intermediate

Using FLOWMASTER performance exhaust in conjunction with other perrformance modifications i.e. high flow air filters, air boxes, headers etc., can cause an increase in exhaust dB’s that could exceed allowable local limits.

Installation Time: 1-2 hours
Parts Included


  • Features: High Temp Coating or 409 Stainless Steel
  • Color: Black or Stainless Steel
  • Motor: Universal
  • Material: Aluminized or Stainless Steel
*Please make a selection above to view specs on a specific product
  • Jeep CJ-7

  • 1986 Jeep CJ-7
  • 1985 Jeep CJ-7
  • 1984 Jeep CJ-7
  • 1983 Jeep CJ-7
  • 1982 Jeep CJ-7
  • 1981 Jeep CJ-7
  • 1980 Jeep CJ-7
  • 1979 Jeep CJ-7
  • Jeep CJ-5

  • 1983 Jeep CJ-5
  • 1982 Jeep CJ-5
  • 1981 Jeep CJ-5
  • 1980 Jeep CJ-5
  • 1979 Jeep CJ-5
Part NumberCatalog #OptionPrice
94254117618.0902Aluminized Steel$97.26
804254117618.0905Stainless Steel$89.70
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