1978 GMC C25 Exhaust Muffler
Browse our online catalogue to find original replacement Exhaust Mufflers specifically designed to fit a 1978 GMC C25.

1978 GMC C25 Exhaust Muffler
$120.95
$105.39
In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Required Per Vehicle: 1
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3);
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3);

1978 GMC C25 Exhaust Muffler
$120.95
$105.39
In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Required Per Vehicle: 1
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Wheel Base: 334.0cm (131.5in.);
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Wheel Base: 334.0cm (131.5in.);

1978 GMC C25 Exhaust Muffler
$120.95
$105.39
In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Required Per Vehicle: 1
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Wheel Base: 417.8cm (164.5in.);
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Wheel Base: 417.8cm (164.5in.);

1978 GMC C25 Exhaust Muffler
$120.95
$105.39
In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Required Per Vehicle: 2
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Wheel Base: 334.0cm (131.5in.);
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Wheel Base: 334.0cm (131.5in.);

1978 GMC C25 Exhaust Muffler
$120.95
$105.39
In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Required Per Vehicle: 2
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Wheel Base: 334.0cm (131.5in.);
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Wheel Base: 334.0cm (131.5in.);
Vehicle Fitment Notes:
with Single Catalytic Converter
with Single Catalytic Converter

1978 GMC C25 Exhaust Muffler
$120.95
$105.39
In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Required Per Vehicle: 2
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Wheel Base: 417.8cm (164.5in.);
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Wheel Base: 417.8cm (164.5in.);

1978 GMC C25 Exhaust Muffler
$120.95
$105.39
In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Required Per Vehicle: 2
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Wheel Base: 417.8cm (164.5in.);
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Wheel Base: 417.8cm (164.5in.);
Vehicle Fitment Notes:
with Single Catalytic Converter
with Single Catalytic Converter

1978 GMC C25 Exhaust Muffler
$163.88
$139.97
In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Required Per Vehicle: 1
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4);
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4);
Vehicle Fitment Notes:
without Catalytic Converter
without Catalytic Converter

1978 GMC C25 Exhaust Muffler
$163.88
$139.97
In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Required Per Vehicle: 1
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Wheel Base: 334.0cm (131.5in.);
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Wheel Base: 334.0cm (131.5in.);
Vehicle Fitment Notes:
with Single Catalytic Converter
with Single Catalytic Converter

1978 GMC C25 Exhaust Muffler
$163.88
$139.97
In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Required Per Vehicle: 1
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Vehicle Fitment Notes:
without Catalytic Converter
without Catalytic Converter

1978 GMC C25 Exhaust Muffler
$163.88
$139.97
In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Pick-Up: Ready in 1 Hour Saturday Feb. 14th
Required Per Vehicle: 1
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Wheel Base: 334.0cm (131.5in.);
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Wheel Base: 334.0cm (131.5in.);
Vehicle Fitment Notes:
with Single Catalytic Converter
with Single Catalytic Converter

1978 GMC C25 Exhaust Muffler
$90.13
$89.84
In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 2-4 Hours Saturday Feb. 14th
Pick-Up: Ready in 2-4 Hours Saturday Feb. 14th
Required Per Vehicle: 1
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4);
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4);
Vehicle Fitment Notes:
without Catalytic Converter
without Catalytic Converter

1978 GMC C25 Exhaust Muffler
$90.13
$89.84
In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 2-4 Hours Saturday Feb. 14th
Pick-Up: Ready in 2-4 Hours Saturday Feb. 14th
Required Per Vehicle: 1
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Wheel Base: 334.0cm (131.5in.);
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Wheel Base: 334.0cm (131.5in.);
Vehicle Fitment Notes:
with Single Catalytic Converter
with Single Catalytic Converter

1978 GMC C25 Exhaust Muffler
$90.13
$89.84
In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 2-4 Hours Saturday Feb. 14th
Pick-Up: Ready in 2-4 Hours Saturday Feb. 14th
Required Per Vehicle: 1
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Vehicle Fitment Notes:
without Catalytic Converter
without Catalytic Converter

1978 GMC C25 Exhaust Muffler
$90.13
$89.84
In Stock
Condition: New
Ships: Monday Feb. 16th
Pick-Up: Ready in 2-4 Hours Saturday Feb. 14th
Pick-Up: Ready in 2-4 Hours Saturday Feb. 14th
Required Per Vehicle: 1
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Wheel Base: 334.0cm (131.5in.);
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Wheel Base: 334.0cm (131.5in.);
Vehicle Fitment Notes:
with Single Catalytic Converter
with Single Catalytic Converter

1978 GMC C25 Exhaust Muffler
$85.18
$74.69
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4);
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4);
Vehicle Fitment Notes:
without Catalytic Converter Modifications and/or Additional Parts May Be Required for Installation
without Catalytic Converter Modifications and/or Additional Parts May Be Required for Installation

1978 GMC C25 Exhaust Muffler
$85.18
$74.69
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Wheel Base: 334.0cm (131.5in.);
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Wheel Base: 334.0cm (131.5in.);
Vehicle Fitment Notes:
with Single Catalytic Converter Modifications and/or Additional Parts May Be Required for Installation
with Single Catalytic Converter Modifications and/or Additional Parts May Be Required for Installation

1978 GMC C25 Exhaust Muffler
$85.18
$74.69
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Vehicle Fitment Notes:
without Catalytic Converter Modifications and/or Additional Parts May Be Required for Installation
without Catalytic Converter Modifications and/or Additional Parts May Be Required for Installation

1978 GMC C25 Exhaust Muffler
$85.18
$74.69
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Wheel Base: 334.0cm (131.5in.);
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Wheel Base: 334.0cm (131.5in.);
Vehicle Fitment Notes:
with Single Catalytic Converter Modifications and/or Additional Parts May Be Required for Installation
with Single Catalytic Converter Modifications and/or Additional Parts May Be Required for Installation

1978 GMC C25 Exhaust Muffler
$90.13
$77.34
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3);
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3);

1978 GMC C25 Exhaust Muffler
$90.13
$77.34
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Wheel Base: 334.0cm (131.5in.);
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Wheel Base: 334.0cm (131.5in.);

1978 GMC C25 Exhaust Muffler
$90.13
$77.34
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Wheel Base: 417.8cm (164.5in.);
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Wheel Base: 417.8cm (164.5in.);

1978 GMC C25 Exhaust Muffler
$90.13
$77.34
Out of Stock
Condition: New
Required Per Vehicle: 2
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Wheel Base: 334.0cm (131.5in.);
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Wheel Base: 334.0cm (131.5in.);

1978 GMC C25 Exhaust Muffler
$90.13
$77.34
Out of Stock
Condition: New
Required Per Vehicle: 2
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Wheel Base: 334.0cm (131.5in.);
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Wheel Base: 334.0cm (131.5in.);
Vehicle Fitment Notes:
with Single Catalytic Converter
with Single Catalytic Converter

1978 GMC C25 Exhaust Muffler
$90.13
$77.34
Out of Stock
Condition: New
Required Per Vehicle: 2
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Wheel Base: 417.8cm (164.5in.);
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Wheel Base: 417.8cm (164.5in.);

1978 GMC C25 Exhaust Muffler
$90.13
$77.34
Out of Stock
Condition: New
Required Per Vehicle: 2
Made in USA
Fits: 1978 GMC C25
Equipped With:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Wheel Base: 417.8cm (164.5in.);
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Wheel Base: 417.8cm (164.5in.);
Vehicle Fitment Notes:
with Single Catalytic Converter
with Single Catalytic Converter