Dynomax® Performance Exhaust | Mufflers | Ultra Flo™ Welded Mufflers

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Dynomax® Performance Mufflers: Ultra Flo™ Welded
DynoMax® Ultra Flo™ Welded performance stainless steel mufflers feature 100-percent welded construction for lifelong durability. The unrestricted, straight-through design dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower. Each muffler uses our exclusive Continuous Roving Fiberglass (CRF) Technology to absorb unwanted interior resonance while maintaining a deep performance tone. The "Pure Unadulterated POWER" of DynoMax® Ultra Flo™ Welded mufflers are backed by a Limited Lifetime Warranty and exclusive 90-Day Performance & Sound Guarantee™.

Stainless steel construction for lifelong protection.
100-percent Welded design for maximum durability.
Dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower.
Straight-through design ensures unrestricted exhaust flow and reduces back pressure.
CRF Technology absorbs unwanted interior resonance while maintaining a deep performance tone.

Muffler Configurations

Dynomax Performance Exhaust: Muffler Configuration - Center / Center

Dynomax Performance Exhaust: Muffler Configuration - Side / Side

Dynomax Performance Exhaust: Muffler Configuration - Side / Side (same)

Dynomax Performance Exhaust: Muffler Configuration - Camaro Style

Dynomax Performance Exhaust: Muffler Configuration - Center / Dual

Dynomax Performance Exhaust: Muffler Configuration - Dual / Dual

= Stainless Steel Material

Material	Part Number	Shell Diameter (in.)	Overall Length (in.)	Shell Length (in.)	Inlet Diameter (in.)	Oulet Diameter (in.)
	17216	4 1/2 x 9 3/4	19	14	2 1/4	2 1/4
	17218	4 1/2 x 9 3/4	19	14	2 1/2	2 1/2
	17220	4 1/2 x 9 3/4	19	14	3	3
	17517	4 1/2 x 9 3/4	19	14	3 1/2	3 1/2
	17559	4 1/2 x 9 3/4	25	20	2 1/2	2 1/2
	17549	6 Round	21	16	2 1/4	2 1/4
	17230	6 Round	21	16	2 1/2	2 1/2
	17223	6 Round	21	16	3	3
	17224	6 Round	21	16	3 1/2	3 1/2
	17539	6 Round	21	16	3 1/2	3
	17225	6 Round	21	16	4	4
	17537	6 Round	27	22	4	4
	17538	6 Round	27	22	4	4
	21172	9 Round	22	15	4	4
	22572	9 Round	27	20	4	4

Material	Part Number	Shell Diameter (in.)	Overall Length (in.)	Shell Length (in.)	Inlet Diameter (in.)	Oulet Diameter (in.)
	17514	4 1/2 x 9 3/4	19	14	2	2
	17217	4 1/2 x 9 3/4	19	14	2 1/4	2 1/4
	17512	4 1/2 x 9 3/4	25	20	2 1/4	2 1/4
	17219	4 1/2 x 9 3/4	19	14	2 1/2	2 1/2
	17513	4 1/2 x 9 3/4	25	20	2 1/2	2 1/2
	17236	4 1/2 x 9 3/4	29	24	2 1/2	2 1/2
	17221	4 1/2 x 9 3/4	19	14	3	3
	17233	4 1/2 x 9 3/4	25	20	3	3
	17235	4 1/2 x 9 3/4	29	24	3	3

Material	Part Number	Shell Diameter (in.)	Overall Length (in.)	Shell Length (in.)	Inlet Diameter (in.)	Oulet Diameter (in.)
	17516	4 1/2 x 9 3/4	19	14	2	2
	17226	4 1/2 x 9 3/4	19	14	2 1/4	2 1/4
	17561	4 1/2 x 9 3/4	25	20	2 1/4	2 1/4
	17560	4 1/2 x 9 3/4	25	20	2 1/2	2 1/2
	17222	4 1/2 x 9 3/4	19	14	2 1/2	2 1/2
	17229	4 1/2 x 9 3/4	19	14	3	3
	17547	4 1/2 x 9 3/4	27	20	3	3
	17557	8 1/4 x 11 1/2	30	25	4	4
	17518	7 Round	29	24	2 1/2	2 1/2

	Material	Part Number	Shell Diameter (in.)	Overall Length (in.)	Shell Length (in.)	Inlet Diameter (in.)	Oulet Diameter (in.)
		17232	4 1/2 x 9 3/4	19	14	3	3

Material	Part Number	Shell Diameter (in.)	Overall Length (in.)	Shell Length (in.)	Inlet Diameter (in.)	Oulet Diameter (in.)
	17227	4 1/2 x 9 3/4	24	20	3	2 1/2 (2)
	17536	4 1/2 x 9 3/4	24	20	3	3 (2)

Material	Part Number	Shell Diameter (in.)	Overall Length (in.)	Shell Length (in.)	Inlet Diameter (in.)	Oulet Diameter (in.)
	17234	4 1/2 x 9 3/4	25	20	2 1/2	2 1/2 (2)
	17228	4 1/2 x 9 3/4	19	14	3	2 1/2 (2)

Material	Part Number	Shell Diameter (in.)	Overall Length (in.)	Shell Length (in.)	Inlet Diameter (in.)	Oulet Diameter (in.)
	17231	4 1/2 x 9 3/4	19	14	2 1/2 (2)	2 1/2 (2)
	17515	4 1/2 x 9 3/4	25	20	2 1/2 (2)	2 1/2 (2)