Muffler Selection by Style, Attenuation & Exhaust Flow
Stated backpressure levels include muffler, average tubing lengths, and accessories.
Style 4 - End Inlet/SIde Outlet
Attenuation
----- Exhaust Flow (cfm) @ -----
-- Inlet I.D. --
--- Outlet I.D. ---
Body Diameter
Body Length
Range dB(A) 12-18 12-18 12-18 15-20 12-18 13-18 13-18 12-18 13-18 15-21 15-21 15-21 15-20 14-19 15-21 15-20 12-18 12-17 15-20
Part
3" Hg
2" Hg
1" Hg
inch 2.00 2.50 3.00
mm
inch 2.00 2.50 3.00 3.00 3.50 4.00
mm
inch
mm 152 168 216 216 229
inch
mm 400 451 502 667 552 827 827 603 705 914 914 914 772 556 914 1168
Number M060481 M065140 M085409 M085206 M091048 M090547 M090548 M101169 M100052 M110112 M110148 M110311 M120367 M120135 M111025 M110014 M120749 M120417 M120366
40.8" H 2 0 27.2" H 2 0 13.6" H 2 0
51 64 76
51 64 76
6.00 6.62 8.50 8.50 9.00
15.75 17.75 19.75 26.25 21.75
498 780
393 613 884 583
283 441 636 413 865 866
1125
76
715
3.50
89
89
1525 1500 1913 2000 1679 1852 1852 1852 1708 2100 1976 2462 3100 1895 2400
1203 1224 1562 1570 1371 1512 1512 1512 1394 1750 1613 2010 2450 1570 1960
102
8.2 x 11.5
208 x 292 32.56 208 x 292 32.56
4.00 OD 102 OD 8.2 x 11.5
1105 1130
4.00
102
4.00 4.00 4.00 4.00
102 102 102 102
10.00 10.00 11.00 11.00
254 254 279 279 279
23.75 27.75 36.00 36.00 36.00
969
1069 1069 1069
4.00 OD 102 OD 11.00
4.00 4.00
102 102
10 x 15 10 x 15
254 x 381 30.38 254 x 381 23.88
986
1260 1141 1421 1762 1130 1386
4.00 OD 102 OD 4.00 OD 102 OD 11.00
279 279 301
36.00 46.00 25.75
5.00
127
5.00 5.00 5.00 5.00
127
11.00 11.84
127
654 711 914
127 127
10 x 15 10 x 15
254 x 381 28.00 254 x 381 36.00
Mufflers in blue text have high temperature black finish and are designed for off-road applications.
Style 5 - Inlet & Outlet on Same End
Attenuation
----- Exhaust Flow (cfm) @ -----
-- Inlet I.D. --
--- Outlet I.D. ---
Body Diameter
Body Length
Range dB(A) 12-18 15-20 12-18 15-20 15-20 12-18 12-18 12-18 15-20 18-20 15-20 15-20
Part
3" Hg
2" Hg
1" Hg
inch 2.00
mm
inch
mm
inch
mm
inch
mm 400 429 451 508 559 502 552 603 705 660 686 667 660 848 1118
Number M060482 M060250 M065141 M065073 M085207 M085410 M091049 M101170 M100049 M120154 M120713 M120176 M120131 M120189 M120450 M120750
40.8" H 2 0 27.2" H 2 0 13.6" H 2 0
51
2.00 2.00 2.50 2.50 3.00 3.00 3.50 4.00 4.00 4.00 5.00 5.00 5.00 5.00 5.00 5.00
51
6.00 6.00 6.62 6.62 8.50 8.50 9.00
152 152 168 168 216 216 229 254 254
15.75 16.90 17.75 20.00 22.00 19.75 21.75 23.75 27.75
498 513 780 718
393 419 613 586 888 884
283 296 441 414 628 636 865
51
2.50
64
64
64 76
3.00
76
1087 1125 1525 2000 1450 1390 2069 2046 2913 2050 2679 3100
76
3.50 4.00
89
89
1203 1570 1184 1135 1689 1670 2378 1674 2188 2450
102
102 102 102 127 127 127 127 127
10.00 10.00
1130
837 803
10 x 15 10 x 15 10 x 15 10 x 15 10 x 15 10 x 15
254 x 381 26.00 254 x 381 27.00 254 x 381 26.25 254 x 381 26.00 254 x 381 33.38 254 x 381 44.00
1159 1181 1682 1184 1547 1762
5.00
127
8-12
19-25 13-18 12-18
127
11.84
301
25.75
654
6 t Medium- and Heavy-Duty Exhaust Products t 50
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