Home / Shop / Flowmaster American Thunder Exhaust Systems for 1967-1972 C10 PICKUP, C15/C1500 PICKUP - 17654 System, Thunder, Header-back, Steel, Aluminized, Split Rear/Split Side Exit, Chevy, GMC, Kit

Flowmaster American Thunder Exhaust Systems for 1967-1972 C10 PICKUP, C15/C1500 PICKUP - 17654 System, Thunder, Header-back, Steel, Aluminized, Split Rear/Split Side Exit, Chevy, GMC, Kit

SKU: FLO17654

Exhaust Systems

Flowmaster

Flowmaster American Thunder Exhaust Systems for 1967-1972 C10 PICKUP, C15/C1500 PICKUP - 17654 System, Thunder, Header-back, Steel, Aluminized, Split Rear/Split Side Exit, Chevy, GMC, Kit

SKU: FLO17654

Exhaust Systems

LOW STOCK! Est Ship 4-7 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.

We accept

Description

Flowmaster American Thunder exhaust systems are designed with the latest exhaust technology available--resulting in improved acceleration, passing power, and fuel mileage. A key to these performance upgrades is Flowmaster's use of mandrel-bent tubing, which allows superior exhaust gas flow. The systems also feature mufflers (single or dual) that deliver plenty of the rich Flowmaster sound you expect. Components are built from stainless steel or aluminized steel; and some models include tips. American Thunder exhausts are available in more than a hundred configurations for fitment on specific truck and car applications.

Part Type

Crossmember Back Exhaust Kit 67-72 GM P/U C10

Data: v4.2 - Upd: 2026-10-14 03:35:47

Specifications

Product Attributes - Brand: Flowmaster
Product Attributes - Manufacturer's Part Number: 17654
Product Attributes - Part Type: Exhaust Systems
Product Attributes - Product Line: Flowmaster American Thunder Exhaust Systems
Product Attributes - UPC: 700042029891
Product Attributes - System Material: Steel
Product Attributes - System Style: Header-back
Product Attributes - Exhaust Type: Dual
Product Attributes - Exit Location: Split rear/Split side
Product Attributes - System Finish: Aluminized
Product Attributes - Catalytic Converter(s) Included: No
Product Attributes - Intermediate Pipe Diameter (in.): 2.50 in.
Product Attributes - Muffler Included: Yes
Product Attributes - Muffler Quantity: Two
Product Attributes - Muffler Configuration: Single inlet/Single outlet
Product Attributes - Muffler Style: Chambered
Product Attributes - Muffler Material: Steel
Product Attributes - Muffler Finish: Black
Product Attributes - Hardware Included: Yes
Product Attributes - Tailpipe Diameter (in.): 2.50 in.
Product Attributes - Tip Included: No
Product Attributes - Remanufactured: No
Product Attributes - Quantity: Sold as a kit.
Product Attributes - Notes: For use with vehicles with coil spring rear suspension only.
Product Attributes - Special Attention: It is illegal to install parts or components that bypass, defeat, or render inoperative the manufacturers’ technology and design necessary to reduce vehicle emissions to meet state and federal Clean Air Act standards.

Reference Information

Brand Name/s	Flowmaster
StreetFX SKU	flo17654
SFX Item ID	4983966
Supplier Item Code	4983966
Manufacturer SKU	17654
Manufacturer UPC	700042029891
Alternative References	FLM17654, C10, C15/C1500

Compatibility

Application Data

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1968
Engine Type	V6
Liter	5.3
CID	327
CC	4098
Engine Size	5.3L/327
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD
Region	United States (USA)
Engine VIN Code	J
Transmission	Manual

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1968
Engine Type	V6
Liter	4.8
CID	292
CC	4098
Engine Size	4.8L/292
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; Flowmaster American Thunder Crossmember-Back Exhaust System; LS Swap
Region	United States (USA)
Engine VIN Code	D
Transmission	Automatic

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1968
Engine Type	V6
Liter	4.8
CID	292
CC	4098
Engine Size	4.8L/292
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; Flowmaster American Thunder Crossmember-Back Exhaust System; Small Block Chevy Swap
Region	United States (USA)
Engine VIN Code	J
Transmission	Automatic

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1968
Engine Type	V6
Liter	4.8
CID	292
CC	4098
Engine Size	4.8L/292
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; Big Block Chevy Swap
Region	United States (USA)
Engine VIN Code	D
Transmission	Automatic

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1968
Engine Type	V6
Liter	4.8
CID	292
CC	4098
Engine Size	4.8L/292
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; Flowmaster American Thunder Crossmember-Back Exhaust System
Region	United States (USA)
Engine VIN Code	J
Transmission	Automatic

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1970
Engine Type	V6
Liter	4.8
CID	292
CC	4098
Engine Size	4.8L/292
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; LS Swap
Region	United States (USA)
Engine VIN Code	D
Transmission	Automatic

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1970
Engine Type	V6
Liter	4.8
CID	292
CC	4801
Engine Size	4.8L/292
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; Flowmaster American Thunder Crossmember-Back Exhaust System; Big Block Chevy Swap
Region	United States (USA)
Engine VIN Code	J
Transmission	Automatic

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1970
Engine Type	V6
Liter	4.8
CID	292
CC	4801
Engine Size	4.8L/292
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; LS Swap
Region	United States (USA)
Engine VIN Code	D
Transmission	Manual

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1970
Engine Type	V6
Liter	4.8
CID	292
CC	4801
Engine Size	4.8L/292
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; Small Block Chevy Swap
Region	United States (USA)
Engine VIN Code	J
Transmission	Manual

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1970
Engine Type	V6
Liter	6.5
CID	396
CC	6489
Engine Size	6.5L/396
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; Flowmaster American Thunder Crossmember-Back Exhaust System; Big Block Chevy Swap
Region	United States (USA)
Engine VIN Code	F
Transmission	Manual

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1970
Engine Type	V6
Liter	6.5
CID	396
CC	6489
Engine Size	6.5L/396
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; Flowmaster American Thunder Crossmember-Back Exhaust System; Small Block Chevy Swap
Region	United States (USA)
Engine VIN Code	F
Transmission	Manual

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1970
Engine Type	V6
Liter	6.5
CID	396
CC	6489
Engine Size	6.5L/396
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; Big Block Chevy Swap
Region	United States (USA)
Engine VIN Code	F
Transmission	Manual

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1970
Engine Type	V6
Liter	6.5
CID	396
CC	6489
Engine Size	6.5L/396
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; Flowmaster American Thunder Crossmember-Back Exhaust System
Region	United States (USA)
Engine VIN Code	T
Transmission	Manual

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1970
Engine Type	V6
Liter	6.5
CID	396
CC	6489
Engine Size	6.5L/396
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; Big Block Chevy Swap
Region	United States (USA)
Engine VIN Code	J
Transmission	Manual

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1969
Ending Year	1968
Engine Type	V6
Liter	6.5
CID	396
CC	6489
Engine Size	6.5L/396
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; Flowmaster American Thunder Crossmember-Back Exhaust System; Small Block Chevy Swap
Region	United States (USA)
Engine VIN Code	T
Transmission	Automatic

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1972
Engine Type	V6
Liter	6.6
CID	402
CC	6588
Engine Size	6.6L/402
Engine Family	Chevy big block Mark IV
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; Flowmaster American Thunder Crossmember-Back Exhaust System; LS Swap
Region	United States (USA)
Engine VIN Code	J
Transmission	Automatic

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1972
Engine Type	V6
Liter	6.6
CID	402
CC	6588
Engine Size	6.6L/402
Engine Family	Chevy big block Mark IV
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; LS Swap
Region	United States (USA)
Engine VIN Code	H
Transmission	Automatic

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1971
Engine Type	V6
Liter	6.5
CID	396
CC	6489
Engine Size	6.5L/396
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; Small Block Chevy Swap
Region	United States (USA)
Engine VIN Code	J
Transmission	Automatic

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1971
Engine Type	V6
Liter	4.8
CID	292
CC	4801
Engine Size	4.8L/292
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; Flowmaster American Thunder Crossmember-Back Exhaust System
Region	United States (USA)
Engine VIN Code	T
Transmission	Automatic

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1971
Engine Type	V6
Liter	4.8
CID	292
CC	4801
Engine Size	4.8L/292
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; Flowmaster American Thunder Crossmember-Back Exhaust System; Small Block Chevy Swap
Region	United States (USA)
Engine VIN Code	J
Transmission	Automatic

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1967
Engine Type	V6
Liter	4.6
CID	305
CC	5012
Engine Size	5.0L/305
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; Flowmaster American Thunder Crossmember-Back Exhaust System
Region	United States (USA)
Engine VIN Code	D
Transmission	Manual

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1967
Engine Type	V6
Liter	4.6
CID	305
CC	5012
Engine Size	5.0L/305
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; Big Block Chevy Swap
Region	United States (USA)
Engine VIN Code	J
Transmission	Manual

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1967
Engine Type	V6
Liter	4.6
CID	305
CC	4098
Engine Size	5.0L/305
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; Flowmaster American Thunder Crossmember-Back Exhaust System; Big Block Chevy Swap
Region	United States (USA)
Engine VIN Code	F
Transmission	Manual

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1968
Engine Type	V6
Liter	5.3
CID	327
CC	4098
Engine Size	5.3L/327
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; Flowmaster American Thunder Crossmember-Back Exhaust System; Big Block Chevy Swap
Region	United States (USA)
Engine VIN Code	J
Transmission	Manual

Make	GMC
Model	C15/C1500 PICKUP
Submodel	BASE
Beginning Year	1972
Ending Year	1968
Engine Type	V6
Liter	5.3
CID	327
CC	4098
Engine Size	5.3L/327
Engine Family	GM V6
Drivetrain	RWD
Application Notes	U/K, U/K; U/K; RWD; Flowmaster American Thunder Crossmember-Back Exhaust System; LS Swap
Region	United States (USA)
Engine VIN Code	F
Transmission	Manual

Loading compatibility information...

Keep shopping

Select Your Vehicle

Flowmaster American Thunder Exhaust Systems for 1967-1972 C10 PICKUP, C15/C1500 PICKUP - 17654 System, Thunder, Header-back, Steel, Aluminized, Split Rear/Split Side Exit, Chevy, GMC, Kit

Flowmaster American Thunder Exhaust Systems for 1967-1972 C10 PICKUP, C15/C1500 PICKUP - 17654 System, Thunder, Header-back, Steel, Aluminized, Split Rear/Split Side Exit, Chevy, GMC, Kit

Description

Part Type

Specifications

Reference Information

Compatibility

More from Flowmaster

Flowmaster Outlaw Series Exhaust Systems 817958 System, Series, Cat-back, Single In/Single Out, Stainless Steel, Natural, Jeep, 3.6, Kit

Flowmaster Exhaust Systems 738198 2025 RAM 1500 3.0L SIGNATURE, CB, DOR

Flowmaster FlowFX 409 Stainless Steel 3 Inch Muffler 71229 Muffler, Series, in. Offset Inlet/3 in. Center Outlet, Reversible, Steel, Natural, Each

Flowmaster FlowFX 409 Stainless Steel 2.5 Inch Muffler 71416 Muffler, Series, in. Inlet/2.5 in. Outlet, Steel, Natural, Round Body, Each

Flowmaster 2.5 IN(O)/OUT(C) 50 Series DF SS Muffler

Flowmaster 3 IN(C)/2.5 OUT(D) 50 Series DF SS Muffler