ALUMINIZED GLASS PACKS

100% aluminized glass packs with louvered cores and long-strand high-temp fiberglass. Available with 3", 3-1/2", 4" and 5" shells, and 1-3/4", 2", 2-1/4", 2-1/2", 3", 4" cores. Glass packs with ends are expandable. Expansion joint prevents premature core breakage. Stainless steel (polished or not) and steel glass packs are available.
Aluminized Part # Shell Core size Body OAL Inlet/outlet
2612500 3" 1-3/4" 12" 12" blank
2612501 3" 1-3/4" 12" 18" 2" straight
2612575 3" 1-3/4" 12" 18" 1-3/4" straight
2615500 3" 1-3/4" 15" 15" blank
2615501 3" 1-3/4" 15" 21" 2" straight
2615575 3" 1-3/4" 15" 21" 1-3/4" straight
2618500 3" 1-3/4" 18" 18" blank
2618501 3" 1-3/4" 18" 24" 2" straight
2618575 3" 1-3/4" 18" 24" 1-3/4" straight
3512500 3-1/2" 2" 12" 12" blank
3512501 3-1/2" 2" 12" 18" 2" straight
3512502 3-1/2" 2" 12" 18" 2-1/4" straight
3512541 3-1/2" 2" 12" 18" 2" single offset
3512542 3-1/2" 2" 12" 18" 2-1/4" single offset
3518500 3-1/2" 2" 18" 18" blank
3518501 3-1/2" 2" 18" 24" 2" straight
3518502 3-1/2" 2" 18" 24" 2-1/4" straight
3518541 3-1/2" 2" 18" 24" 2" single offset
3518542 3-1/2" 2" 18" 24" 2-1/4" single offset
3518561 3-1/2" 2" 18" 24" 2" double offset
3518562 3-1/2" 2" 18" 24" 2-1/4" double offset
3524500 3-1/2" 2" 24" 24" blank
3524501 3-1/2" 2" 24" 30" 2" straight
3524541 3-1/2" 2" 24" 30" 2" single offset
3524561 3-1/2" 2" 24" 30" 2" double offset
3530500 3-1/2" 2" 30" 30" blank
3530501 3-1/2" 2" 30" 36" 2" straight
4012500 4" 2-1/4" 12" 12" blank
4012502 4" 2-1/4" 12" 18" 2-1/4" straight
4012503 4" 2-1/4" 12" 18" 2-1/2" straight
4015500
 4"
 2-1/4"
 15"
 15"
 blank
4015502 4" 2-1/4" 15" 21" 2-1/4" straight
4018500 4" 2-1/4" 18" 18" blank
4018502 4" 2-1/4" 18" 24" 2-1/4" straight
4018503 4" 2-1/4"
 18" 24" 2-1/2" straight
4018542 4" 2-1/4" 18" 24" 2-1/4" single offset
4018562 4" 2-1/4" 18" 24" 2-1/4" double offset
4024500 4" 2-1/4" 24" 24" blank
4024502 4" 2-1/4" 24" 30" 2-1/4" straight
4024503 4" 2-1/4" 24" 30" 2-1/2" straight
4030500 4" 2-1/4" 30" 30" blank
4030502 4" 2-1/4" 30" 36" 2-1/4" straight
4030503 4" 2-1/4" 30" 36" 2-1/2" straight
4512500 4" 2-1/2" 12" 12" blank
4512503 4" 2-1/2" 12" 18" 2-1/2" straight
4515500 4" 2-1/2" 15" 15" blank
4515503 4" 2-1/2" 15" 21" 2-1/2" straight
4518500 4" 2-1/2" 18" 18" blank
4518503 4" 2-1/2" 18" 24" 2-1/2" straight
4530500 4" 2-1/2" 30" 30" blank
4530503 4" 2-1/2" 30" 36" 2-1/2" straight
5012500 4" 3" 12" 12" blank
5012504 4" 3" 12" 18" 3" straight
5012526 4" 2-1/2" 12" 24" 2-1/2" in-dual 2-1/4"
5012530 4" 3" 12" 24" 3" in-dual 2-1/4"
5015500 4" 3" 15" 15" blank
5015504 4" 3" 15" 21" 3" straight
5020500 4" 3" 20" 20" blank
5020504 4" 3" 20" 26" 3" straight
5020526 4" 2-1/2" 20" 32" 2-1/2" in-dual 2-1/4"
5020530 4" 3" 20" 32" 3" in-dual 2-1/4"
5024500 4" 3" 24" 24" blank
5024504 4" 3" 24" 30" 3" straight
5030500 4" 3" 30" 30" blank
5030504 4" 3" 30" 36" 3" straight
5024-004AL 5" 4" 24" 24" blank
5024-114AL 5" 4" 24" 30" 4" straight




STAINLESS STEEL GLASS PACKS
100% stainless glass packs with louvered cores and long-strand high-temp fiberglass. Available with 3", 3-1/2", 4" and 5" shells, and 1-3/4", 2", 2-1/4", 2-1/2", 3", 4" cores. Glass packs with ends are expandable. Expansion joint prevents premature core breakage. These come bright annealed but unpolished 304 stainless steel ends and necks.  Louvered cores are 409 stainless steel for heat tolerance.  Special lengths and sizes may be ordered.  Most of these items are not stocked and may require additional lead time, our popular numbers are listed below.  Polishing by us is available at additional cost.
Stainless Steel Part # Shell Core size Body OAL Inlet/outlet
3012900
 3"
 2"
 12"
 12" blank
3012901
 3" 2" 12" 18"
 2" straight
3018900
 3" 2" 18" 18" blank
3018901
 3" 2"
 18" 24"
 2" straight
3018941
 3" 2" 18" 24" 2" single offset
3018961
 3" 2" 18" 24" 2" double offset
3020900
 3" 2" 20"
 20" blank
3020901
 3" 2" 20" 26"
 2" straight
3020941
 3" 2" 20" 26" 2" single offset
3020961
 3" 2" 20" 26" 2" double offset
3024900
 3" 2" 24" 24" blank
3024901
 3" 2" 24" 30"
 2" straight
3024941
 3" 2" 24" 30" 2" single offset
3024961
 3" 2" 24" 30" 2" double offset
3030900
 3" 2" 30" 30" blank
3030901
 3" 2" 30" 36"
 2" straight
3512900
 3-1/2" 2" 12" 12" blank
3512901
 3-1/2" 2" 12" 18" 2" straight
3518900
 3-1/2" 2" 18" 18" blank
3518901
 3-1/2" 2" 18" 24" 2" straight
3518941
 3-1/2" 2" 18" 24" 2" single offset
3518961
 3-1/2" 2" 18" 24" 2" double offset
3520900
 3-1/2" 2" 20" 20" blank
3520901
 3-1/2" 2" 20" 26" 2" straight
3520941
 3-1/2" 2" 20" 26" 2" single offset
3520961
 3-1/2" 2" 20" 26" 2" double offset
3524900
 3-1/2" 2" 24" 24" blank
3524901
 3-1/2" 2" 24" 30" 2" straight
3524941
 3-1/2" 2" 24" 30" 2" single offset
3524961
 3-1/2" 2" 24" 30" 2" double offset
3530900
 3-1/2" 2" 30" 30" blank
3530901
 3-1/2" 2" 30" 36" 2" straight
3612900
 3-1/2" 2-1/4"
 12" 12" blank
3612902
 3-1/2" 2-1/4" 12" 18" 2-1/4" straight
3618900
 3-1/2" 2-1/4" 18" 18" blank
3618902
 3-1/2" 2-1/4" 18" 24" 2-1/4" straight
3618942
 3-1/2" 2-1/4" 18" 24" 2-1/4" single offset
3618962
 3-1/2" 2-1/4" 18" 24" 2-1/4" double offset
3620900
 3-1/2" 2-1/4" 20" 20" blank
3620902
 3-1/2" 2-1/4" 20" 26" 2-1/4" straight
3620942
 3-1/2" 2-1/4" 20" 26" 2-1/4" single offset
3620962
 3-1/2" 2-1/4" 20" 26" 2-1/4" double offset
3624900
 3-1/2" 2-1/4" 24" 24" blank
3624902
 3-1/2" 2-1/4" 24" 30" 2-1/4" straight
3624942
 3-1/2" 2-1/4" 24" 30" 2-1/4" single offset
3624962
 3-1/2" 2-1/4" 24" 30" 2-1/4" double offset
3630900
 3-1/2" 2-1/4" 30" 30" blank
3630902
 3-1/2" 2-1/4" 30" 36"
 2-1/4" straight
3712900
 3-1/2" 2-1/2" 12" 12" blank
3712903
 3-1/2" 2-1/2" 12" 18" 2-1/2" straight
3718900
 3-1/2" 2-1/2"
 18" 18" blank
3718903
 3-1/2" 2-1/2" 18" 24" 2-1/2" straight
3718943
 3-1/2" 2-1/2" 18" 24" 2-1/2" single offset
3718963
 3-1/2" 2-1/2" 18" 24" 2-1/2" double offset
3720900
 3-1/2" 2-1/2" 20" 20" blank
3720903
 3-1/2" 2-1/2" 20" 26" 2-1/2" straight
3720943
 3-1/2" 2-1/2" 20" 26" 2-1/2" single offset
3720963
 3-1/2" 2-1/2" 20" 26" 2-1/2" double offset
3724900
 3-1/2" 2-1/2" 24" 24" blank
3724903
 3-1/2" 2-1/2" 24" 30" 2-1/2" straight
3724943
 3-1/2" 2-1/2" 24" 30" 2-1/2" single offset
3724963
 3-1/2" 2-1/2" 24" 30" 2-1/2" double offset
3730900
 3-1/2" 2-1/2" 30" 30" blank
3730903
 3-1/2" 2-1/2" 30" 36" 2-1/2" straight
4012902
 4" 2-1/4" 12" 18" 2-1/4" straight
4018902
 4" 2-1/4" 18" 24" 2-1/4" straight
4018942
 4" 2-1/4" 18" 24" 2-1/4" single offset
4018962
 4" 2-1/4" 18" 24" 2-1/4" double offset
4020902
 4" 2-1/4" 20" 26" 2-1/4" straight
4020942
 4" 2-1/4" 20" 26" 2-1/4" single offset
4020962
 4" 2-1/4" 20" 26" 2-1/4" double offset
4024902
 4" 2-1/4" 24" 30" 2-1/4" straight
4024942
 4" 2-1/4" 24" 30" 2-1/4" single offset
4024962
 4" 2-1/4" 24" 30" 2-1/4" double offset
4030902
 4" 2-1/4" 30" 36" 2-1/4" straight
4512903
 4" 2-1/2" 12" 18" 2-1/2" straight
4518903
 4" 2-1/2" 18" 24" 2-1/2" straight
4518943
 4" 2-1/2" 18" 24" 2-1/2" single offset
4518963
 4" 2-1/2" 18" 24" 2-1/2" double offset
4520903
 4" 2-1/2" 20" 26" 2-1/2" straight
4520943
 4" 2-1/2" 20" 26" 2-1/2" single offset
4520963
 4" 2-1/2" 20" 26" 2-1/2" double offset
4524903
 4" 2-1/2" 24" 30" 2-1/2" straight
4524943
 4" 2-1/2" 24" 30" 2-1/2" single offset
4524963
 4" 2-1/2" 24" 30" 2-1/2" double offset
4530903
 4" 2-1/2" 30" 36" 2-1/2" straight
5012900
 4" 3"
 12" 12" blank
5012904
 4" 3" 12" 18" 3" straight
5020900
 4" 3" 20" 20" blank
5020904
 4" 3" 20" 26" 3" straight
5024900
 4" 3" 24" 24" blank
5024904
 4" 3" 24" 30" 3" straight
5030900
 4" 3" 30" 30" blank
5030904
 4" 3" 30" 36" 3" straight


HEADER GLASS PACKS

Red painted steel, 24" body, 3-1/2" shell. For vehicles with headers.
Part #
Size
3524-88 for 2-1/2" header collector 2-1/4" id outlet
3524-99 for 3" header collector 2-1/4" id outlet


ALUMINIZED FLOW PACKS
 

These are straight-through glass packs with a stainless steel perforated core. 100% aluminized shell and ends with long-strand high-temp fiberglass. Available with 4" shells, and 2-1/4", 2-1/2", and 3" cores (3-1/2" with 2" available via special order). Mufflers with ends are expandable. Expansion joint prevents premature core breakage. Recommended for race applications, or as a resonator or secondary muffler. Single and double offset also available via special order. 
Our highest flowing, yet loudest muffler.



Part # Core size Body length OAL Inlet/outlet
4212600 2-1/4" 12" 12" blank
4212602 2-1/4" 12" 18" 2-1/4" straight
4218600 2-1/4" 18" 12" blank
4218602 2-1/4" 18" 24" 2-1/4" straight
4224600 2-1/4" 24" 24" blank
4224602 2-1/4" 24" 30" 2-1/4" straight
4312600 2-1/2" 12" 12" blank
4312603 2-1/2" 12" 18" 2-1/2" straight
4318600 2-1/2" 18" 18" blank
4318603 2-1/2" 18" 24" 2-1/2" straight
4324600 2-1/2" 24" 24" blank
4324603 2-1/2" 24" 30" 2-1/2" straight
4412600 3" 12" 12" blank
4412604 3" 12" 18" 3" straight
4418600 3" 18" 18" blank
4418604 3" 18" 24" 3" straight
4424600 3" 24" 24" blank
4424604 3" 24" 30" 3" straight


STAINLESS STEEL FLOW PACKS
These are straight-through glass packs with a 400 series stainless steel perforated core. 100% 304 stainless shell and ends with long-strand high-temp fiberglass. Available with 4" shells, and 2-1/4", 2-1/2", and 3" cores (3-1/2" available via special order). Mufflers with ends are expandable. Expansion joint prevents premature core breakage. Recommended for race applications, or as a resonator or secondary muffler. Single and double offset also available via special order.  Our highest flowing, yet loudest muffler.  These come bright annealed but unpolished 304 stainless steel ends and necks.  Special lengths and sizes may be ordered.  Most of these items are not stocked and may require additional lead time, our popular numbers are listed below.  Polishing by us is available at additional cost.

 
Part # Shell Core size Body length OAL Inlet/outlet
4612900
 3-1/2" 2" 12"
 12" blank
4612901
 3-1/2" 2" 12" 18"
 2" straight
4618900
 3-1/2" 2" 18" 18" blank
4618901
 3-1/2" 2" 18" 24"
 2" straight
4624900
 3-1/2" 2" 24" 24" blank
4624901
 3-1/2" 2" 24" 30" 2" straight
4712900
 3-1/2" 2-1/4" 12" 12" blank
4712902
 3-1/2" 2-1/4" 12" 18" 2-1/4" straight
4718900
 3-1/2" 2-1/4" 18" 18" blank
4718902
 3-1/2" 2-1/4" 18" 24" 2-1/4" straight
4724900
 3-1/2" 2-1/4" 24" 24" blank
4724902
 3-1/2" 2-1/4" 24" 30" 2-1/4" straight
4812900
 3-1/2" 2-1/2" 12" 12" blank
4812903
 3-1/2" 2-1/2" 12" 18" 2-1/2" straight
4818900
 3-1/2" 2-1/2" 18" 18" blank
4818903
 3-1/2" 2-1/2"
 18" 24" 2-1/2" straight
4824900
 3-1/2" 2-1/2" 24" 24" blank
4824903
 3-1/2" 2-1/2" 24" 30" 2-1/2" straight
4212902
 4" 2-1/4" 12" 18" 2-1/4" straight
4218902
 4" 2-1/4" 18" 24" 2-1/4" straight
4224902
 4" 2-1/4" 24" 30" 2-1/4" straight
4312903
 4" 2-1/2" 12" 18" 2-1/2" straight
4318903
 4" 2-1/2" 18" 24" 2-1/2" straight
4324903
 4" 2-1/2" 24" 30" 2-1/2" straight
4412900
 4" 3"
 12" 12" blank
4412904
 4" 3" 12" 18" 3" straight
4418900
 4" 3" 18" 18" blank
4418904
 4" 3" 18" 24" 3" straight
4424900
 4" 3" 24" 24" blank
4424904
 4" 3" 24" 30"
 3" straight


STAINLESS STEEL SMOOTH TUBE MUFFLERS

 These one-piece shell mufflers have the ends shrunk to the appropriate size in/out.  3-1/2” od 304 polished stainless steel shell, louvered stainless steel core with heat expansion joint to prevent core breakage and high-temp fiber glass packing.  Aggressive sounding, long-lasting, nice-looking performance glass packs.  The necks are not expandable, other sizes, lengths and aluminized steel available via special order.



Part #
 Body
 OAL
 Core
 In/Out
3618902ST
 18"
 24"
 2-1/4"
 2-1/4"
3718903ST
 18"
 24"
 2-1/2"
 2-1/2"
3818904ST
 18"
 24"
 3"
 3"


RACE MUFFLERS
These are shaped like a glass pack body with a 5" shell, 6" body length, 4" spiral louvered core, one-piece shell design, packed with high temp fiber glass.  The muffler with the turn out will help with sound control more so than the muffler without the turn out end.  These mufflers flow very well, and provide a minimum amount of sound control, and are not recommended for street use.  They must be welded to your exhaust pipe, and are made of aluminized steel.  6019430 and 6019435 have six discs inside, turndowns, are more restrictive, but quieter, unpacked, designed mostly for circle track racing, black painted steel.

Part # Core
 Body length OAL Inlet/outlet CFM
4006003
 3"
 6"
 6"
 3"
40060031
 3"
 6"
 12"
 3" id in/3" turn out
40060035
 3-1/2"
 6"
 6"
 3-1/2"

400600351
 3-1/2"
 6"
 13"
 3-1/2" id in/3-1/2" turn out
5006004
 4"
 6"
 8"
 4" id
 795 cfm @ 10" water
50060041
 4"
 6"
 13-1/2"
 4" id in/4" turn out
690 cfm @ 10" water
6019430
 6 discs 12"
 21-1/2"
 3" id in/3" turn out
6019435
 6 discs
 12"
 21-1/2"
 3-1/2" id in/3" turn out




ALUMINIZED DUAL TUBE MUFFLERS

These are shaped like a glass pack body, but have the cores of a standard muffler.  4" shell size only in all applications.  Note:  size inside the muffler is restricted to 1-3/4" exhaust flow, and these mufflers are not recommended for high horsepower applications.  Recommended only for either dual exhaust on lower horsepower applications where space is a concern, or smaller motors as a resonator.  These mufflers are reversible.
Part # Body length OAL Inlet/outlet
4115501
 15"
 21"
 2" straight
4115502
 15" 21" 2-1/4" straight
4115505
 15" 21" 2-1/4" to 2" straight
4115533
 15" 21" 1-3/4" straight
4115576
 15" 21" 1-1/2" straight
4118501
 18" 24"
 2" straight
4118502
 18" 24" 2-1/4" straight
4118505
 18" 24" 2-1/4" to 2" straight
4118509
 18" 24" 2-1/2" to 2" straight
4118541
 18" 24" 2" single offset
4118542
 18" 24" 2-1/4" single offset
4118561
 18" 24" 2" double offset
4118562
 18" 24" 2-1/4" double offset
4124501
 24"
 30"
 2" straight
4124502
 24" 30" 2-1/4" straight
4124505
 24" 30" 2-1/4" to 2" straight
4124509
 24" 30" 2-1/2" to 2" straight


Heartthrob Exhaust Inc.
60819 U.S. Hwy. 12 West
Litchfield, MN 55355
P:  320-693-0222
F:  320-693-8964
email:  mike@heartthrobexhaust.com

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