Double-wrapped welded aluminized mufflers with two baffles and one center v-baffle (most configurations). The double-wrapped shell helps to give a quieter sound than single-wrapped performance mufflers. Mufflers are not reversible, body sizes are 5-1/2″ x 11″ oval, or 4″ x 9″ oval. The 5-1/2″ x 11″ oval mufflers are shaped like our HPM turbo mufflers on the outside, but should be used when you are looking for a slight increase in noise and a higher exhaust flow. This muffler has a much lower level of resonance and drone in the cab when compared to other straight through performance mufflers. It is loud upon accelleration, but quiet at speed. This is due to the double-wrapped shell, which is virtually non-existent on performance mufflers from our competition.
5-1/2″ x 11″ Oval Body Mufflers
| Part # | Inlet/Outlet | Body | OAL | Part # | Inlet/Outlet | Body | OAL | |
| 54000 | 2″ center in/out | 14″ | 19″ | 58000 | 2″ center in/out | 18″ | 23″ | |
| 54011 | 2-1/4″ center in/out | 14″ | 19″ | 58011 | 2-1/4″ center in/out | 18″ | 23″ | |
| 54022 | 2-1/2″ center in/out | 14″ | 19″ | 58022 | 2-1/2″ center in/out | 18″ | 23″ | |
| 54044 | 3″ center in/out | 14″ | 19″ | 58044 | 3″ center in/out | 18″ | 23″ | |
| 54055 | 3-1/2″ center in/out | 14″ | 19″ | 58055 | 3-1/2″ center in/out | 18″ | 23″ | |
| 54066 | 4″ center in/out | 14″ | 19″ | 58066 | 4″ center in/out | 18″ | 23″ | |
| 54077 | 5″ center in/out | 14″ | 19″ | 58077 | 5″ center in/out | 18″ | 23″ | |
| 54100 | 2″ offset in/center out | 14″ | 19″ | 58100 | 2″ offset in/center out | 18″ | 23″ | |
| 54111 | 2-1/4″ offset in/center out | 14″ | 19″ | 58111 | 2-1/4″ offset in/center out | 18″ | 23″ | |
| 54122 | 2-1/2″ offset in/center out | 14″ | 19″ | 58122 | 2-1/2″ offset in/center out | 18″ | 23″ | |
| 54144 | 3″ offset in/center out | 14″ | 19″ | 58144 | 3″ offset in/center out | 18″ | 23″ | |
| 54200 | 2″ center in/offset out | 14″ | 19″ | 58200 | 2″ center in/offset out | 18″ | 23″ | |
| 54211 | 2-1/4″ center in/offset out | 14″ | 19″ | 58211 | 2-1/4″ center in/offset out | 18″ | 23″ | |
| 54222 | 2-1/2″ center in/offset out | 14″ | 19″ | 58222 | 2-1/2″ center in/offset out | 18″ | 23″ | |
| 54244 | 3″ center in/offset out | 14″ | 19″ | 58244 | 3″ center in/offset out | 18″ | 23″ | |
| 54300 | 2″ double offset | 14″ | 19″ | 58300 | 2″ double offset | 18″ | 23″ | |
| 54311 | 2-1/4″ double offset | 14″ | 19″ | 58311 | 2-1/4″ double offset | 18″ | 23″ | |
| 54322 | 2-1/2″ double offset | 14″ | 19″ | 58322 | 2-1/2″ double offset | 18″ | 23″ | |
| 54344 | 3″ double offset | 14″ | 19″ | 58344 | 3″ double offset | 18″ | 23″ | |
| 54400 | 2″ single in/dual out | 14″ | 19″ | 58400 | 2″ single in/dual out | 18″ | 23″ | |
| 54410 | 2-1/4″ single in/2″ dual out | 14″ | 19″ | 58410 | 2-1/4″ single in/2″ dual out | 18″ | 23″ | |
| 54411 | 2-1/4″ single in/dual out | 14″ | 19″ | 58411 | 2-1/4″ single in/dual out | 18″ | 23″ | |
| 54421 | 2-1/2″ single in/2-1/4″dual out | 14″ | 19″ | 58421 | 2-1/2″ single in/2-1/4″dual out | 18″ | 23″ | |
| 54422 | 2-1/2″ single in/dual out | 14″ | 19″ | 58422 | 2-1/2″ single in/dual out | 18″ | 23″ | |
| 54441 | 3″ single in/2-1/4″ dual out | 14″ | 19″ | 58441 | 3″ single in/2-1/4″ dual out | 18″ | 23″ | |
| 54442 | 3″ single in/2-1/2″ dual out | 14″ | 19″ | 58442 | 3″ single in/2-1/2″ dual out | 18″ | 23″ | |
| 54444 | 3″ single in/dual out | 14″ | 19″ | 58444 | 3″ single in/dual out | 18″ | 23″ | |
| 54454 | 3-1/2″ single in/3″ dual out | 14″ | 19″ | 58454 | 3-1/2″ single in/3″ dual out | 18″ | 23″ | |
| 54464 | 4″ single in/3″ dual out | 14″ | 19″ | 58464 | 4″ single in/3″ dual out | 18″ | 23″ | |
| 54500 | 2″ dual in/single out | 14″ | 19″ | 58500 | 2″ dual in/single out | 18″ | 23″ | |
| 54501 | 2″ dual in/2-1/4″ single out | 14″ | 19″ | 58501 | 2″ dual in/2-1/4″ single out | 18″ | 23″ | |
| 54502 | 2″ dual in/2-1/2″ single out | 14″ | 19″ | 58502 | 2″ dual in/2-1/2″ single out | 18″ | 23″ | |
| 54504 | 2″ dual in/3″ single out | 14″ | 19″ | 58504 | 2″ dual in/3″ single out | 18″ | 23″ | |
| 54511 | 2-1/4″ dual in/single out | 14″ | 19″ | 58511 | 2-1/4″ dual in/single out | 18″ | 23″ | |
| 54512 | 2-1/4″ dual in/2-1/2″ single out | 14″ | 19″ | 58512 | 2-1/4″ dual in/2-1/2″ single out | 18″ | 23″ | |
| 54514 | 2-1/4″ dual in/3″ single out | 14″ | 19″ | 58514 | 2-1/4″ dual in/3″ single out | 18″ | 23″ | |
| 54522 | 2-1/2″ dual in/single out | 14″ | 19″ | 58522 | 2-1/2″ dual in/single out | 18″ | 23″ | |
| 54524 | 2-1/2″ dual in/3″ single out | 14″ | 19″ | 58524 | 2-1/2″ dual in/3″ single out | 18″ | 23″ | |
| 54525 | 2-1/2″ dual in/3-1/2″ single out | 14″ | 19″ | 58525 | 2-1/2″ dual in /3-1/2″ single out | 18″ | 23″ | |
| 54526 | 2-1/2″ dual in/4″ single out | 14″ | 19″ | 58526 | 2-1/2″ dual in/4″ single out | 18″ | 23″ | |
| 54534 | 2-3/4″ dual in/3″ single out | 14″ | 19″ | 58534 | 2-3/4″ dual in/3″ single out | 18″ | 23″ | |
| 54535 | 2-3/4″ dual in/3-1/2″ single out | 14″ | 19″ | 58535 | 2-3/4″ dual in/3-1/2″ single out | 18″ | 23″ | |
| 54536 | 2-3/4″ dual in/4″ single out | 14″ | 19″ | 58536 | 2-3/4″ dual in/4″ single out | 18″ | 23″ | |
| 54544 | 3″ dual in/single out | 14″ | 19″ | 58544 | 3″ dual in/single out | 18″ | 23″ | |
| 54545 | 3″ dual in/3-1/2″ single out | 14″ | 19″ | 58545 | 3″ dual in/3-1/2″ single out | 18″ | 23″ | |
| 54546 | 3″ dual in/4″ single out | 14″ | 19″ | 58546 | 3″ dual in/4″ single out | 18″ | 23″ | |
| 54600 | 2″ dual/dual | 14″ | 19″ | 58600 | 2″ dual/dual | 18″ | 23″ | |
| 54601 | 2″ dual/2-1/4″dual | 14″ | 19″ | 58601 | 2″ dual/2-1/4″dual | 18″ | 23″ | |
| 54602 | 2″ dual/2-1/2″dual | 14″ | 19″ | 58602 | 2″ dual/2-1/2″dual | 18″ | 23″ | |
| 54604 | 2″ dual/3″dual | 14″ | 19″ | 58604 | 2″ dual/3″dual | 18″ | 23″ | |
| 54611 | 2-1/4″ dual/dual | 14″ | 19″ | 58611 | 2-1/4″ dual/dual | 18″ | 23″ | |
| 54612 | 2-1/4″ dual/2-1/2″ dual | 14″ | 19″ | 58612 | 2-1/4″ dual/2-1/2″ dual | 18″ | 23″ | |
| 54614 | 2-1/4″ dual/3″ dual | 14″ | 19″ | 58614 | 2-1/4″ dual/3″ dual | 18″ | 23″ | |
| 54621 | 2-1/2″ dual/2-1/4″ dual | 14″ | 19″ | 58621 | 2-1/2″ dual/2-1/4″ dual | 18″ | 23″ | |
| 54622 | 2-1/2″ dual/dual | 14″ | 19″ | 58622 | 2-1/2″ dual/dual | 18″ | 23″ | |
| 54624 | 2-1/2″ dual/3″ dual | 14″ | 19″ | 58624 | 2-1/2″ dual/3″ dual | 18″ | 23″ | |
| 54631 | 2-3/4″ dual/2-1/4″ dual | 14″ | 19″ | 58631 | 2-3/4″ dual/2-1/4″ dual | 18″ | 23″ | |
| 54632 | 2-3/4″ dual/2-1/2″ dual | 14″ | 19″ | 58632 | 2-3/4″ dual/2-1/2″ dual | 18″ | 23″ | |
| 54634 | 2-3/4″ dual/3″ dual | 14″ | 19″ | 58634 | 2-3/4″ dual/3″ dual | 18″ | 23″ | |
| 54641 | 3″ dual/2-1/4″ dual | 14″ | 19″ | 58641 | 3″ dual/2-1/4″ dual | 18″ | 23″ | |
| 54642 | 3″ dual/2-1/2″ dual | 14″ | 19″ | 58642 | 3″ dual/2-1/2″ dual | 18″ | 23″ | |
| 54644 | 3″ dual/dual | 14″ | 19″ | 58644 | 3″ dual/dual | 18″ | 23″ | |
| 58742 | 3″ single in/dual 2-1/2″ out transverse | 18″ | 23″ |
Part numbers in black are currently available and in stock. Call for availability of part numbers in red.
4 x 9 Oval Body Mufflers
| Part # | Inlet/Outlet | Body | OAL | Part # | Inlet/Outlet | Body | OAL | |
| 44000 | 2″ center in/out | 14″ | 19″ | 48000 | 2″ center in/out | 18″ | 23″ | |
| 44011 | 2-1/4″ center in/out | 14″ | 19″ | 48011 | 2-1/4″ center in/out | 18″ | 23″ | |
| 44022 | 2-1/2″ center in/out | 14″ | 19″ | 48022 | 2-1/2″ center in/out | 18″ | 23″ | |
| 44044 | 3″ center in/out | 14″ | 19″ | 48044 | 3″ center in/out | 18″ | 23″ | |
| 44100 | 2″ offset in/center out | 14″ | 19″ | 48100 | 2″ offset in/center out | 18″ | 23″ | |
| 44111 | 2-1/4″ offset in/center out | 14″ | 19″ | 48111 | 2-1/4″ offset in/center out | 18″ | 23″ | |
| 44122 | 2-1/2″ offset in/center out | 14″ | 19″ | 48122 | 2-1/2″ offset in/center out | 18″ | 23″ | |
| 44144 | 3″ offset in/center out | 14″ | 19″ | 48144 | 3″ offset in/center out | 18″ | 23″ | |
| 44200 | 2″ center in/offset out | 14″ | 19″ | 48200 | 2″ center in/offset out | 18″ | 23″ | |
| 44211 | 2-1/4″ center in/offset out | 14″ | 19″ | 48211 | 2-1/4″ center in/offset out | 18″ | 23″ | |
| 44222 | 2-1/2″ center in/offset out | 14″ | 19″ | 48222 | 2-1/2″ center in/offset out | 18″ | 23″ | |
| 44244 | 3″ center in/offset out | 14″ | 19″ | 48244 | 3″ center in/offset out | 18″ | 23″ | |
| 44300 | 2″ double offset | 14″ | 19″ | 48300 | 2″ double offset | 18″ | 23″ | |
| 44311 | 2-1/4″ double offset | 14″ | 19″ | 48311 | 2-1/4″ double offset | 18″ | 23″ | |
| 44322 | 2-1/2″ double offset | 14″ | 19″ | 48322 | 2-1/2″ double offset | 18″ | 23″ | |
| 44344 | 3″ double offset | 14″ | 19″ | 48344 | 3″ double offset | 18″ | 23″ | |
| 44400 | 2″ single in/dual out | 14″ | 19″ | 48400 | 2″ single in/dual out | 18″ | 23″ | |
| 44410 | 2-1/4″ single in/2″ dual out | 14″ | 19″ | 48410 | 2-1/4″ single in/2″ dual out | 18″ | 23″ | |
| 44411 | 2-1/4″ single in/dual out | 14″ | 19″ | 48411 | 2-1/4″ single in/dual out | 18″ | 23″ | |
| 44421 | 2-1/2″ single in/2-1/4″dual out | 14″ | 19″ | 48421 | 2-1/2″ single in/2-1/4″dual out | 18″ | 23″ | |
| 44422 | 2-1/2″ single in/dual out | 14″ | 19″ | 48422 | 2-1/2″ single in/dual out | 18″ | 23″ | |
| 44500 | 2″ dual in/single out | 14″ | 19″ | 48500 | 2″ dual in/single out | 18″ | 23″ | |
| 44501 | 2″ dual in/2-1/4″ single out | 14″ | 19″ | 48501 | 2″ dual in/2-1/4″ single out | 18″ | 23″ | |
| 44502 | 2″ dual in/2-1/2″ single out | 14″ | 19″ | 48502 | 2″ dual in/2-1/2″ single out | 18″ | 23″ | |
| 44511 | 2-1/4″ dual in/single out | 14″ | 19″ | 48511 | 2-1/4″ dual in/single out | 18″ | 23″ | |
| 44512 | 2-1/4″ dual in/2-1/2″ single out | 14″ | 19″ | 48512 | 2-1/4″ dual in/2-1/2″ single out | 18″ | 23″ | |
| 44522 | 2-1/2″ dual in/single out | 14″ | 19″ | 48522 | 2-1/2″ dual in/single out | 18″ | 23″ | |
| 44600 | 2″ dual/dual | 14″ | 19″ | 48600 | 2″ dual/dual | 18″ | 23″ | |
| 44601 | 2″ dual/2-1/4″dual | 14″ | 19″ | 48601 | 2″ dual/2-1/4″dual | 18″ | 23″ | |
| 44602 | 2″ dual/2-1/2″dual | 14″ | 19″ | 48602 | 2″ dual/2-1/2″dual | 18″ | 23″ | |
| 44611 | 2-1/4″ dual/dual | 14″ | 19″ | 48611 | 2-1/4″ dual/dual | 18″ | 23″ | |
| 44612 | 2-1/4″ dual/2-1/2″ dual | 14″ | 19″ | 48612 | 2-1/4″ dual/2-1/2″ dual | 18″ | 23″ | |
| 44621 | 2-1/2″ dual/2-1/4″ dual | 14″ | 19″ | 48621 | 2-1/2″ dual/2-1/4″ dual | 18″ | 23″ | |
| 44622 | 2-1/2″ dual/dual | 14″ | 19″ | 48622 | 2-1/2″ dual/dual | 18″ | 23″ |
Part numbers in black are currently available and in stock. Call for availability of part numbers in red.
409 Stainless Steel Mufflers single wrapped shell
| Part # | Inlet/Outlet | Body | OAL |
| 444111 | 2-1/4″ offset in/center out–4″ x 9″ oval | 14″ | 19″ |
| 444122 | 2-1/2″ offset in/center out–4″ x 9″ oval | 14″ | 19″ |
| 444211 | 2-1/4″ center in/offset out–4″ x 9″ oval | 14″ | 19″ |
| 444222 | 2-1/2″ center in/offset out–4″ x 9″ oval | 14″ | 19″ |
| 444311 | 2-1/4″ double offset–4″ x 9″ oval | 14″ | 19″ |
| 444322 | 2-1/2″ double offset–4″ x 9″ oval | 14″ | 19″ |
| 458442 | 3″ single in/dual 2-1/2″ out–5″ x 11″ oval | 18″ | 23″ |
