Walker Exhaust 2013

NOISE & BACKPRESSURE

Application

DBA @ 50 ft. #

Muffler Shell Diam. (Inches)

Splitter "T" Adapter g

Mega Flow Muffler

DBA @ 50 ft.

Muffler Inlet/Outlet (Inches)

B.P.

Style

Engine

C.I.D.

Style

# Muffler

B.P.

NAVISTAR/IH - naturally aspirated diesel

9.0

551

4 4 4 5 5 3

4 4 4 5 5 3

9

1 1 3 1 1 2 1 1 1

22965 22969

74 74

0.6 22936 0.6 22916

75 68 66 77 75 70 68 73 72

1.3 1.5 1.5 1.8 1.6 1.3 0.8 1.1 0.9

10 ¹⁄₈ 10 ¹⁄₂

22835 c

9

22964 22963

77 73

1.0 22940 1.2 22920

Vertical

10 ¹⁄₈

9.0

551

8 ³⁄₈

21476 22844

3 ¹⁄₂

3 ¹⁄₂

9 9 9

4 5

4 5

22965 22964

72 72

0.9 22936 0.6 22940

Dual Vertical

4 8 ¹⁄₄ x 11 ¹⁄₂

5

22231

77

2.1

6.9

420 2 ³⁄₄ , 2 ³⁄₄

Dual Inlet Horizontal Stack Horizontal Muffler

6.9

420 2 ³⁄₄ , 2 ³⁄₄

4 8 ¹⁄₄ x 11 ¹⁄₂

5

22231

77

2.0

Dual Inlet Vertical Stack Horizontal Muffler

6.9 7.3 9.0

420

4

4

10 ¹⁄₈

11

21833 21832 22004 21174

77 74 79 80

1.3 1.8 1.2 1.1

445 3 ¹⁄₂

4 8 ¹⁄₄ x 11 ¹⁄₂ 4 8 ¹⁄₄ x 11 ¹⁄₂

2 2 2

551

4 4

4

10 x 15

Horizontal

6.9

420 2 ¹⁄₂

2 ¹⁄₂

6 ¹⁄₂ 8 ³⁄₈

2 2 1

21475 21476 22844

78 78 68

1.5 1.0 0.9

7.3 9.0

445

3

3

551 3 ¹⁄₂

3 ¹⁄₂

9

Horizontal Duals

NAVISTAR/IH - turbo charged diesel

DT-360 DTA-360

360 3 ¹⁄₂

3 ¹⁄₂

9 9

1 1 1 3 1 1 1 3

22844

60 70 63 56 72 66 59

1.9 0.4 0.5 1.5 0.8 0.9 2.0

360

4 4 4 4 4 4 4

4 4 4 4 4 4 4

22965 22969

69 69

0.2 22936 0.2 22916

10 ¹⁄₈ 10 ¹⁄₂

22835 c

DT-466 DTA-466

466 466

9 9

22965 22965 22969

69 71 71

0.6

0.6 22936 0.6 22916

Vertical

10 ¹⁄₈ 10 ¹⁄₂

22835 c

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