Muffler Selection by Style, Attenuation & Exhaust Flow
Choose the desired inlet diameter for the engine’s air flow requirement that is at or below the acceptable backpressure level.
Style 2A - Dual End Inlet/End Outlet
Attenuation
----- Exhaust Flow (cfm) @ -----
-- Inlet I.D. --
--- Outlet I.D. ---
Body Diameter
Body Length
Range dB(A) 15-20 15-20
Part
3" Hg
2" Hg
1" Hg
inch
mm
inch 2.75 3.00 3 OD
mm
inch
mm 216 216 222
inch
mm 762 794 765 686
Number M085172 M085189 2 M085267 2,7 M090563
40.8" H 2 0 27.2" H 2 0 13.6" H 2 0
2.5 (2) 64 (2)
70 76
8.50 8.50 8.75
30.00 31.25 30.12
685 875
559 714 947 802
395 505 670 567
76 OD
19-25
1160
2.75 (2) 70 (2) 4.00
102
8.2 x 11.5
208 x 292 27.00
15-18
982
Mufflers in blue text have high temperature black finish and are designed for off-road applications.
Style 3 - Side Inlet/End Outlet
Attenuation
----- Exhaust Flow (cfm) @ -----
-- Inlet I.D. --
--- Outlet I.D. ---
Body Diameter
Body Length
Range dB(A) 12-18 12-18 15-20 12-18 15-20 12-18 15-20 15-20 12-18 12-18 15-20 12-18 15-20 15-20 19-25 15-20 12-18 12-17 12-18 13-19 13-18 12-18 15-20
Part
3" Hg
2" Hg
1" Hg
inch 1.68 2.00
mm
inch 1.64 2.00 2.00 2.50 2.50 3.00 3.00 3.00 3.00 3.50 3.50 4.00 4.00 4.00 4.00 5.00 5.00 5.00
mm
inch
mm 111 152 152 168 168 216 224 216 216 229
inch
mm 350 400 478 451 531 502 689 667 686 552 664 603 711 838 914 1130
Number M045193 M060481 M060158 M065140 M065044 M085409 M085226 1 M085090 M085084 M091048 M090301 M101169 M100146 M110674 6 M110479 M090823 M120598 M120566 M120382 M111024 M100213 M120749 M120235
40.8" H 2 0 27.2" H 2 0 13.6" H 2 0
43 51
42
4.38 6.00 6.00 6.62 6.62 8.50 8.80 8.50 8.50 9.00
13.78 15.75 18.81 17.75 20.89 19.75 27.12 26.25 27.00 21.75
220 498 383 780 564
180 393 313 613 461 884 659 659 654
127 283 221 441 326 636 466 466 462 865 643
51
51
2.50
64
64
64
3.00
76
76
1125
76 76
808 808 801
3.02 3.50
77 89
76
89
1525 1114 2000 1341 1677 1608 2329 2264 2205 2265 1702 2415 3100 2098
1203
89
8.3 x 11.5
211 x 292 26.13
910
4.00
102
102 102 102 102 127 127 127
10.00 10.00 11.00 11.00
254 254 279 279 229 301
23.75 28.00 33.00 36.00 44.50 32.13
1570 1095 1369 1313 1902 1848 1800 1849 1390 1972 2450 1713
1130
774 968 928
9.00
1345 1307 1273 1307
11.84
816 533 381 914
10 x 15 10 x 15
254 x 381 21.00 254 x 381 15.00
3.85 OD 98 OD
Down Spout
11.00 10.00 11.84
279 254 301
36.00 44.50 25.75
983
5.00
127
5.00 5.00 5.00
127
1130
1394 1762 1211
127 127
654 911
10 x 15
254 x 381 35.87
1 - Wrapped muffler (reduces noise and surface temperature) 2 - Stainless Steel 6 - Band clamp on inlet tube 7 - Face flange on inlet
Medium- and Heavy-Duty Exhaust Products t 5 t 49
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