1978 GMC Caballero Exhaust Upgrade Parts
25 parts verified to fit your 1978 GMC Caballero for a complete exhaust upgrade. A moderate DIY project — estimated 2-5 hours.
Headers
(4)primaryMufflers
(21)primary

Cometic Gasket
Cometic Buick Stage I V6 .064in AFM Exhaust Manifold Gasket Set
$30.55


Cometic Gasket
Cometic Chevy Gen1 Small Block V8 .064in AM Exhaust Gskt Set-1.500in x 1.470in Ports-18 Degree Head
$37.66


Cometic Gasket
Cometic Buick Stage II V6 .064in ArmorCore Exhaust Manifold Gasket Set
$30.55

Victor Reinz
MAHLE Original Buick Century 80-77 Exhaust Gas Recirculation Valve Gasket
$2.93

Magnaflow
MagnaFlow Conv Univ 2.25 FED
$119.00

Magnaflow
Magnaflow 78-84 GM Passenger car CA Direct Fit Converter
$913.00


Cometic Gasket
Cometic GM Gen 1 Small Block 1.450 in x 1.480 in Port Exhaust Manifold Set
$43.37

Victor Reinz
MAHLE Original Buick Century 81-75 Exhaust Pipe Packing Ring
$6.66
Exhaust Upgrade for Other GMC Caballero Years
Other Jobs for Your 1978 GMC Caballero
Frequently Asked Questions
What parts do I need for a exhaust upgrade on my 1978 GMC Caballero?
A complete exhaust upgrade on the 1978 GMC Caballero typically requires headers, mufflers. All parts shown on this page are verified to fit your specific vehicle.
How long does a exhaust upgrade take on a 1978 GMC Caballero?
A exhaust upgrade typically takes 2-5 hours and is rated as moderate difficulty. Actual time may vary depending on your experience and the specific parts being replaced.
Can I do a exhaust upgrade myself?
A exhaust upgrade is a moderate DIY project. If you have some mechanical experience and the right tools, you can handle it. Otherwise, consider having a professional do the work.
Are these parts guaranteed to fit my 1978 GMC Caballero?
Yes, all parts on this page are verified to fit the 1978 GMC Caballero using VCDB fitment data from manufacturers. Our fitment information is cross-referenced with industry-standard vehicle databases to ensure accuracy.
What brands make exhaust upgrade parts for the 1978 GMC Caballero?
We carry exhaust upgrade parts from trusted brands including Fel-Pro, Victor Reinz, Cometic Gasket, and Magnaflow. Filter by brand to find your preferred manufacturer.
How much does a exhaust upgrade cost for a 1978 GMC Caballero?
The cost of a exhaust upgrade for the 1978 GMC Caballero depends on the parts and brands you choose. Browse the parts on this page to see current pricing. Doing the work yourself saves significantly on labor costs.

