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Corsa dB Series Mufflers

CORSA(r) Performance Exhausts has expanded its diesel offerings and applied their patented drone-busting technology to the newest lineup of high-performance mufflers for diesel applications.

CORSA's dB Series Diesel Mufflers(tm) are made from 100 percent premium stainless steel and can be fitted to all non-DPFequipped Chevrolet Duramax 6.6L, 6.5L and 6.2L trucks, Ford Powerstroke 6.0L and 7.3L trucks and pre-2008 Dodge Cummins 5.9L trucks. The mufflers, which are designed with 4-inch inlets and outlets, are expanded and notched for clamp-on or weld-in installation, according to the company.

The dB Series Diesel Mufflers feature a straight-through, nonrestrictive design and the company's exclusive Reflective Sound Cancellation(tm) (RSC) technology, which delivers a comfortable, drone-free interior cabin at cruising speed while still providing an aggressive sound during acceleration.

"Our latest product offering fulfills the market's request for a no-drone, high-performance diesel muffler to replace factory or aftermarket mufflers," says Jim Browning, Sr., founder and president, CORSA Performance Exhausts. "Plus, it allows CORSA Performance to be a one-stop shop for diesel owners wanting great sound and increased horsepower, whether they prefer our individual dB mufflers or complete cat-back exhaust systems."
dB series Make way for the ONLY muffler that delivers more HP & torque, a great muscle car sound & up to 4 decibel drone reduction in the car - the Corsa dB series! The Corsa dB is designed and acoustically approved for your specific vehicle. Straight through design gives you 7 to 10% more horespower compared to stock, and there is no stainless or wool packing material to blow out. Features RSC Sound Cancellation Technology, a new design that significantly or completely eliminates that annoying engine drone you get from other exhaust systems. If you're looking for more horsepower, more performance, and less headaches, your Corsa dB Exhaust is the answer!
Corsa dB Series Mufflers Key Features:
  • ELIMINATES DRONE experienced with other exhaust systems
  • 304 stainless steel construction
  • 4" non-restricted flow for max power & quick turbo spool up
  • Reduced backpressure and lower EGTs
  • Satin finish
  • No packing material inside to wear out
  • Corsa limited lifetime warranty (for manufacture defect only)
  • Expanded & notched for clamp-on installation or weld in
Important Considerations:
  • Designed for 4" system (pipe).
  • Modifications to your existing pipe may be necessary due to possible damage / deformation from clamps used on existing system
muffler dimensions muffler sound
Model Part # Overall Length (A) Case Length (B) Case Diam. (C) Inlet Diam. (D)
(Expanded & Notched)
Outlet Diam. (E)
PN 8004000
27.50" 23.25" 9.62" 4.02" ID 4.00" OD
Powerstroke All 6.0L & 7.3L
PN 8004001
27.86" 22.74" 9.62" 4.02" ID 4.00" OD
Cummins All 5.9L
PN 8004002
27.25" 22.74" 9.62" 4.02" ID 4.00" OD
NOTE: This product is NOT FOR STOCK these mufflers are for the Corsa KITS.
Corsa dB Series Muffler - Select Diesel Price
Gm 2500/3500 01-06 Diesel 6.6 Duramax
Diesel Muffler. 4 In. Stainless Replacement Muffler
Part #8004000
Free Shipping
Powerstroke All 6.0L & 7.3L
Diesel Muffler. 4 In. Stainless Replacement Muffler
Part #8004001
Free Shipping
94-07 Cummins 5.9L
Diesel Muffler. 4 In. Stainless Replacement Muffler.
Part #8004002
Free Shipping
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