HEADER DUAL SYSTEMS
 
Complete dual exhaust system to bolt up to standard headers with 3" collectors. 2-1/4" aluminized 16 gauge
tubing is mandrel bent. Note: some applications are for off-road use only. These systems are not legal for
use on-road on vehicles that originally came with catalytic converters. Also available in 2-1/2", some 3".  Note:  modifications may need to be made to bolt up to different varieties of headers.  Mufflers are not included.

Part # 8148670-2-1/4", 8158670-2-1/2", 8178675-3"
'75-'79 Buick Skylark
'67-'81 Chevrolet Camaro
'62-'79 Chevy II, Nova
'72-'79 Pontiac Phoenix, Ventura
'67-'81 Pontiac Firebird
'73-'79 Oldsmobile Omega

8148670 instructions   8158670 instructions   8168670 instructions

Part # 8148690-2-1/4", 8158690-2-1/2", 8178695-3"
'65-'72 Buick Skylark
'64-'72 Chevelle, Malibu, El Camino
'70-'72 Monte Carlo
'65-'72 Oldsmobile Cutlass
'66-'72 Le Mans, Tempest
'69-'72 Pontiac Grand Prix

8148690 instructions   8158690 instructions    8168690 instructions

Part # 8148700-2-1/4", 8158700-2-1/2"
'73-'77 Buick Century, Regal
'73-'77 Chevelle, Malibu, El Camino
'73-'77 Monte Carlo
'73-'77 Oldsmobile Cutlass
'73-'77 Pontiac Grand Prix
'73 Le Mans, Tempest

8148700 instructions   8158700 instructions 

Part # 8158710-2-1/2"
'78-'88 GM G-body--Note:  double hump cross-member required

8158710 instructions   8158710 pictures

Part # 8148680-2-1/4", 8158680-2-1/2"**
'64-'73 Ford Mustang
'67-'73 Mercury Cougar
**note: for vehicles with headers that exit parallel to the drive shaft

8148680 instructions   8158680 instructions   

Part # 8158722-2-1/2", 8168720-3"
'68-'74 B-body--Charger, GTX, Coronet, Belvedere, Satellite, Roadrunner, Super Bee, R/T, all with V8, standard headers, and with 3” collectors at the headers

8158720 pictures   8168720 pictures   8158720 instructions   8168720 instructions

Part # 8158732-2-1/2", 8168730-3"
'70-'74 E-body-Challenger, Barracuda, all with V8, standard headers, and with 3” collectors at the headers

8158730 pictures   8168730 pictures   8158730 instructions   8168730 instructions

Part # 8158742-2-1/2", 8168740-3"

'67-'74 A-body--Dart/Duster/Demon/Valiant, '67-69 Barracuda, all with V8, standard headers, and with 3” collectors at the headers

8158740 pictures   8168740 pictures   8158740 instructions   8168740 instructions


UNIVERSAL DUAL EXHAUST SYSTEMS
 
Aluminized universal dual kit with tail pipes that exit in front of the rear wheels. UD kits contain flex couplers, fit certain size collectors, and have choices of tubing size. UHDG kits contain collectors for both 2-1/2" and 3", and 4 elbows instead of a flex joint. NOTE: these exhaust kits are not legal for on-road use on any vehicles that came equipped with a catalytic converter from the factory. Your choice of glass packs or turbo mufflers, or special order without mufflers.

If you click on the vehicle description it will bring up installation pictures if available,
and click on the part # to bring up the instruction sheets.
Part # Description   
Part # Description
UD25225G 2-1/2" collectors, 2-1/4" tube, w/gps
UD25225 2-1/2" collectors, 2-1/4" tube, no mufflers
UD25225M 2-1/2" collectors, 2-1/4" tube, w/turbos
UD30225 3" collectors, 2-1/4" tube, no mufflers
UD30225G 3" collectors, 2-1/4" tube, w/gps
UD30250 3" collectors, 2-1/2" tube, no mufflers
UD30225M 3" collectors, 2-1/4" tube, w/turbos
UD30300 3-1/2" collectors, 3" tube, w/no mufflers
UD30250M 3" collectors, 2-1/2" tube, w/turbos
UHDG225G 2-1/2" & 3" collectors, 2-1/4" tube, w/gps
UD30300G 3" collectors, 3" tube, w/gps
UHDG225M 2-1/2" & 3" collectors, 2-1/4" tube, w/turbos
UD35300G 3-1/2" collectors, 3" tube, w/gps



HEADER REDUCERS
 
16 gauge aluminized or 409 stainless steel with either a 2-1/2", 3", or 3-1/2" collector. Includes collectors, collector flanges, gaskets, and mounting hardware. I.D. sizes are available.

w/3" flange w/3" flange w/2-1/2" flange w/2-1/2" flange w/3-1/2" flange w/3-1/2" flange

Alum. 409SS Alum. 409SS Alum. 409SS
Outlet Tube Size
 Part # Part # Part # Part # Part # Part #
2" od 6111050 6121050 6110810 6120810

2-1/8" od 


6111232


2-1/4" od 6111070 6121070 6110840 6120840

2-1/2" od 6111220 6161220 6161210 6161210 6111091
3" od 6111230 6161240

6111090 6111095
3-1/2" od



6111233

# 6110841 = 2-1/2" flange - 2-1/4" od w/oxygen sensor bung
# 6111071 = 3" flange - 2-1/4" od w/oxygen sensor bung        
# 6111221 = 3" flange - 2-1/2" od w/oxygen sensor bung
# 6111231 = 3" flange - 3" od w/oxygen sensor bung



COLLECTOR EXTENSIONS AND TURNDOWNS
Aluminized steel collector extensions and turndowns. Collector extensions are sold in pairs in either a slip-on or bolt-on (standard 3-bolt header flange) option, clamps or hardware are included. Turndowns are sold in pairs, clamps included.
COLLECTOR EXTENSIONS

TURNDOWNS

Part # Size Description Part # Size Qty
3001000 2-1/2” x 12” bolt-on pair 3001011 2-1/2” x 14” pair
3001001 2-1/2” x 18” bolt-on pair 3001012 3” x 14” pair
3001002 3” x 12” bolt-on pair 3001013 3-1/2” x 14” pair
3001003 3” x 18” bolt-on pair 3001014 4” x 14” pair
3001004 3-1/2” x 12” bolt-on pair 3001015 5” x 14” pair
3001005 3-1/2” x 18” bolt-on pair
3001006 2-1/2” x 18” slip-on pair
3001007 3” x 18” slip-on pair
3001008 3-1/2” x 18” slip-on pair
3001009 4” x 18” slip-on pair
3001010 5” x 18” slip-on pair

EXHAUST CUTOUTS
Aluminized steel, sold individually.  Includes one cutout unit, gasket, block-off plate, and 3 wing nuts, bolts.  Not legal for on-road use, or for use in front of or in place of catalytic converters.  These are for off-road race use only.

   
Part # Size
1001117
 2-1/4" i.d. in/out
1001118
 2-1/2" i.d. in/out
1001119
 3" i.d. in/out
Heartthrob Exhaust Inc.
60819 U.S. Hwy. 12 West
Litchfield, MN 55355
P:  320-693-0222
F:  320-693-8964
email:  heartthrob@willmar.com

The Complete 2005 Catalog

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