C3 Stock Systems

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1968-1974 Stock Exhaust Systems

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Exhaust system components are made from 14 gauge (.070) aluminized pipe (1 7/8" diameter tailpipes - 16 gauge).
Year Application Front Pipe Pair A(RH) B(LH) Secondary Pipe Pair C(RH) D(LH) Muffler Pair E(RH) F(LH) Complete System
1968 427 4 Spd 2½” 322409 323547 323372 323712 **
427 Auto 2½” 323566 323520 323372 323713 **
427 4 Spd 2½” * 322409 Part of Muffler 323564 323704
427 Auto 2½” * 323566 323514 323705
1969 427 4 Spd 2½” to 2" 323508 323569 323371 323716
427 Auto 2½” to 2" 323511 323521 323371 323717
427 4 Spd 2 ½” to 2" * 323508 Part of Muffler 323505 323702
427 Auto 2 ½” to 2" * 323511 323542 323703
1969 - 1972 350 4 Spd 2" 323544 323569 323371 323714
350 Auto 2" 323516 323521 323371 323715
350 4 Spd 2" * 323544 Part of Muffler 323505 323706
350 Auto 2" * 323516 323542 323707
1968 - 1972 327/350 4 Spd Hi Perf. to 2½” 323539 323547 323372 323710 **
327/350 Auto Hi Perf 2" to 2½” 323519 323520 323372 323711 **
327/350 4 Spd Hi Pref. 2" to 2½” * 323539 Part of Muffler 323564 323708
327/350 Auto Hi Pref. 2" to 2½” * 323519 323514 323709
1970 - 1972 454 4 Spd 2½” 323561 323547 323372 323719 **
454 Auto 2½” 323581 323520 323372 323720 **
454 4 Spd 2½” * 323561 Part of Muffler 323564 323721
454 Auto 2½” * 323581 323514 323722
1973 350 4 Spd 2" 323544 323569 323380 323731
350 Auto. 2" 323516 323521 323380 323732
350 4 Spd 2" * 323544 Part of Muffler 323524 323747
350 Auto. 2" * 323516 323571 323792
350 4 Spd Hi Perf. 2" to 2½" 323539 323547 323381 323729
350 Auto. Hi Perf. 2" to 2½" 323519 323520 323381 323730
350 4 Spd Hi Perf. 2" to 2½" * 323539 Part of Muffler 323501 323773
350 Auto Hi Perf. 2" to 2½" * 323519 323549 323786
454 4 Spd 2½" 323561 323547 323381 323733
454 Auto. 2½" 323581 323520 323381 323734
454 4 Spd 2½" * 323561 Part of Muffler 323501 323701
454 Auto. 2½" * 323581 323549 323755
1974 350 4 Spd 2" 323544 323569 323382 323723
350 Auto. 2" 323516 323521 323382 323724
L-82, 4 Spd 2" to 2½" 323539 323547 323383 323725
L-82, Auto 2" to 2½" 323519 323520 323383 323726
454 4 Spd 2½" 323561 323547 323383 323727 **
454 Auto. 2½" 323581 323520 323383 323728 **
350 4 Spd 2" Exhaust System with Hideaway Muffler 323375 323735
350 Auto. 2" 323736
L-82 Design, 4 Spd 2" to 2½" 323376 323737 **
L-82 Design, Auto. 2" to 2½" 323738 **
454 4 Spd 2½" 323768
454 Auto. 2½" 323769

1975-1982 Stock Exhaust Systems

Year Application Front "Y" [A] Pipe Hi-Perf. [B] Converter Rear "Y" [C] Pipe Muffler Pair [D] [E] System w/ Converter
1975   323739 323760 323750 323384 323805
1976 w/ Air Injector Pump 323739 323762 323751 323384 323807 *
323819 **
w/o Air Injector Pump 323740 323808 *
323821 **
1977 All 323740 323762 323751 323384 323809 *
323820 **
1978 L-48 323740 323762 323751 323384 323810 *
323385 323820 **
L-82 323752 323378 323811
1979 All 323740 323762 323378 323812
1980 350 323742 323762 323378 323814
305 323718 323826
1981 All 323718 323762 323378 323815
1982 All 323745 323764 323753 323378 323816

1975-1978 Complete Exhaust System With "Hideaway" Mufflers



Year Description Video/Sound Part No. Price  
1975 - 1976 With A.I.R.   323819 $469.95 Detail
1975 - 1976 Except A.I.R.   323821 $469.95 Detail
1977 - 1978 Exhaust System - w/Converter(77 ALL, 78 L48)   323820 $469.95 Detail

1975-1982 Cat Back Exhaust

Year Description Video/Sound Part No. Price  
1975 Stock   323757 $245.70 Detail
1976 - 1977 Stock   323765 $245.70 Detail
1978 L-48 Stock   323774 $245.70 Detail
1978 - 1981 Stock   323789 $235.20 Detail
1982 Stock   323793 $235.20 Detail

* Original factory exhaust systems came on the car with secondary pipe welded to the muffler. The Chart above lists systems both with welded mufflers and with the muffler and pipe separate. NOTE: This system is not to be confused with the OEM high performance "off road" exhaust system which also came as a welded secondary pipe and muffler assembly.

** These systems are available with our Magnaflow Hi Flow Mufflers. To order add $35.00 and specify - Mag Example: 323710-Mag = 68-72 SB 2- 2 ½" Exhaust System.