Mufflers

5" Inlet, 5" outlet, 17" overall length resonator by Flo Pro.Introducing Flo-Pro's TWISTER muffler/resonators. Welded construction for strength & durability featuring a continuous spiral design minimizing turbulence for greater flow which increases hp over other spiral baffle designs. Flo-Pro's Spir..

Backordered with No ETA   **Updated 11/01/2021**4" Inlet, 4 inch outlet, 17" overall length resonator by Flo Pro. Introducing Flo-Pro's TWISTER muffler/resonators.Welded construction for strength & durability featuring a continuous spiral design minimizing turbulence for greater flow..

Backordered with No ETA   **Updated 12/17/2021**Designed to give your diesel truck an incredible performance increase while maintaining a tone that is similar to stock sound levels.The 4040XL incorporates a resonator with the technology of the AT4040 into one unit.4" in, 4" out. 26" tip t..

Designed to give your diesel truck an incredible performance increase while maintaining a tone that is similar to stock sound levels.    The 5050XL incorporates a resonator with the technology of the AT4040 into one unit. 5" in, 5" out. 26" tip to tip...

Walker Big Truck Muffler, 21470Reduces Exhaust Gas Temperatures (EGT's). Improves Flow. Replaces your existing restrictive factory muffler. 3.5" Inlet x 3.5" Outlet. 7" Outside Diameter x 31" Case Length x 37" Overall Length. Can be welded on or clamped (Purchase the required 2x3.5" cl..

Stainless Steel 8" Round Fiberglass Packed Perforated Core5" Inlet/Outlet 30" Overall length 24" CoreFlo Pro part number: M12774..

Backordered til February 28th   **Updated 01/20/2022**Now Flowmaster, formerly Hushpower mufflers.PRO MUFFLER 4.00"IN/4.00"OUT, 8"D X 20"L CASE, Stainless Steel Hushpower Pro Series mufflers provide groundbreaking sound control, while delivering maximum power and exhaust efficiency.&nb..

Muffler, 5"; Single In / Single Out: 409 Stainless Steel Perforated Packed 20" Overall, 14" Body; 7" Case Diamond Eye part number: 560020   IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product se..

4" ALUMINIZED LOUVERED HIGH FLOW- STRAIGHT THROUGH PERFORMANCE MUFFLER - 4" I.D. X 4" I.D. Comes in either 26" or 30" lengths. SEE BELOW FOR OPTIONSIMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our produ..

4" ALUMINIZED LOUVERED HIGH FLOW- STRAIGHT THROUGH PERFORMANCE MUFFLER - 4" I.D. X 4" I.D. Diamond Eye: 460005IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product selection for alternatives from othe..

MBRP's new 5" Quiet Tone muffler features a high flow 5" spiral louvered core, fits most 5" exhaust systems and is a direct replacement for all MBRP 5" performance mufflers. With over triple the sound cancelling packing it eliminates drone under load or towing conditions and delivers up to a 10%..

Stainless Steel 8" Round Fiberglass Packed Perforated Core4" Inlet/Outlet 30" Overall length 24" CoreFlo Pro part number: M12772..

4" ALUMINIZED LOUVERED HIGH FLOW- STRAIGHT THROUGH PERFORMANCE MUFFLER - 5" I.D. X 5" I.D. Comes in either 26" or 30" lengths. SEE BELOW FOR OPTIONSIMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our produ..

Muffler, 4"; Single In / Single Out: 409 Stainless Steel Perforated Packed 20" Overall, 14" Body; 7" Case Diamond Eye part number: 460020   IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product se..

Now Flowmaster, formerly Hushpower mufflersPRO MUFFLER 5.00"IN/5.00"OUT, 8"D X 20"L CASE, Stainless Steel Hushpower Pro Series mufflers provide groundbreaking sound control, while delivering maximum power and exhaust efficiency. These Hushpower Pro Series mufflers can be used on a wide variety of..

The latest breakthrough in Diesel performance exhaust, the 4040 is the most highly rated temperature-reducing muffler on the market today. 4" in, 4" out. 20" tip to tip...

Aluminized 8" Round Baffle Style4" Inlet/Outlet 37" Overall length 30" CoreFlo Pro part number: 8990..

Aluminized 8" Round Fiberglass Packed Perforated Core5" Inlet/Outlet 20" Overall length 14" CoreFlo Pro part number: 6186..

4" ALUMINIZED "QUIET TONE" RESONATOR - LOUVERED GLASS PACK AVAILABE WITH ENDS OR WITHOUTWeld-on or Clamp-on. SEE BELOW FOR OPTIONSIMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product selection for al..

MBRP's new 5" Quiet Tone muffler features a high flow 5" spiral louvered core, fits most 5" exhaust systems and is a direct replacement for all MBRP 5" performance mufflers. With over triple the sound cancelling packing it eliminates drone under load or towing conditions and delivers up to a 10% dB ..

Aluminized 8" Round Baffle Style4" Inlet/Outlet 29" Overall length 23" Body lengthFlo Pro part number: 6192..

Walker Big Truck Muffler, 21471Reduces Exhaust Gas Temperatures (EGT's). Improves Flow. Replaces your existing restrictive factory muffler. 4" Inlet x 4" Outlet. 7" Outside Diameter x 31" Case Length x 37" Overall Length. Can be welded on or clamped (Purchase the required 2x4.0" clamps..

Aluminized 8" Round Fiberglass Packed Perforated Core4" Inlet/Outlet 20" Overall length 14" CoreFlo Pro part number: 6185..

Aluminized 8" Round Fiberglass Packed Perforated Core5" Inlet/Outlet 26" Overall length 23" CoreFlo Pro part number: 6196..

Magnaflow Straight Through Diesel Muffler4" Inlet4" Oulet7" Can30" Can Length36" Overall Length Magnaflow: 12773..

4" T409 STAINLESS STEEL HIGH FLOW- STRAIGHT THROUGH PERFORMANCE MUFFLER - 4" I.D. X 4" I.D. Diamond Eye: 460031IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product selection for alternatives from oth..

Muffler, 4"; Single In / Single Out: 409 Stainless Steel Perforated Packed Louvered 30" Overall, 24" Body; 7" Case Diamond Eye part number: 460033   IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our ..

Aluminized 8" Round Fiberglass Packed Perforated Core4" Inlet/Outlet 26" Overall length 23" CoreFlo Pro part number: 6195..

4" STAINLESS PERFORATED HIGH FLOW- STRAIGHT THROUGH PERFORMANCE MUFFLER - 4" I.D. X 4" I.D.Comes in either 26" or 30" lengths. SEE BELOW FOR OPTIONSIMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product..

Material: 100% Stainless Steel - Satin FinishBody Shape: 7in. RoundInlet/Outlet Size: 5in./5in.Body Length: 24in.Overall Length: 30in.Core Size: 4in.Position: Center/Center Features and Benefits:  THE WIDE OPEN PERFORMANCE DIFFERENCE! MagnaFlow Diesel Performance mufflers are 100% stainless steel ..

Aluminized 7" Round Muffler, I.d. 4"Featured:4.00"    Inlet Diameter 4.00"    Outlet Diameter 24.00"    Body Length 7.00"    Body Width 7.00"    Body Height 30    Over All LengthDifferent Trend part number: ALM-407024-30 (ALM40702430)..

Material: 100% Stainless Steel - Satin FinishBody Shape: 7in. RoundInlet/Outlet Size: 4in./4in.Body Length: 24in.Overall Length: 30in.Core Size: 4in.Position: Center/Center Features and Benefits:  THE WIDE OPEN PERFORMANCE DIFFERENCE! MagnaFlow Diesel Performance mufflers are 100% stainl..

Muffler, 5"; Single In / Single Out: Aluminized Baffled Core 51" Overall, 45" Body; 10" Case  Diamond Eye part number: 800465   IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product selection ..

M91031 - 409 Stainless Steel Muffler, 4 Inch inlet / outlet, 6 Inch Diameter, 30 Inches Long ..

Stainless Steel 8" Round Fiberglass Packed Perforated Core5" Inlet/Outlet 20" Overall length 14" CoreFlo Pro part number: 7186..

Stainless Steel 8" Round, 20" Long Fiberglass Packed Perforated CoreInlet - 4"Outlet - 4"FloPro part number: 7185..

Aluminized 8" Round Baffle Style3.5" Inlet/Outlet 37" Overall length 30" CoreFlo Pro part number: 8880..

Grand Rock M-465 5” in / 5” out, 10” diameter , body length 44” There is a 2-3 day lead time on this part before item ships...

Muffler 5" Inlet /Outlet 24" Body 31" Overall, Black FinishM2050BLK 5" Single Inlet/ Single Outlet, 24" Body Length, 31" Overall Length Black Finish Fits all pickup models * Spiral louver design accelerates gas flow * Long lasting core * High density packing ensures long life * Featuring that c..

Round Straight Through Muffler Center Inlet/Center Outlet 5" inlet/outlet 5" x 24" body 31" overall lengthMBRP part number: GP220022..

409 Stainless 8" Round Muffler, I.d. 4"Featured:4.00"    Inlet Diameter 4.00"    Outlet Diameter 24.00"    Body Length 8.00"    Body Width 8.00"    Body Height 30    Over All LengthDifferent Trend part number: D409-408024-30 (D40940802430)..