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GMC K15 Exhaust System

We have 4 Items In-stock. Select a year to continue.
$333.23 List Price $578.96 Save $245.73 Availability: In Stock
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GIBSON – SWEPT SIDE CAT-BACK EXHAUST SYSTEMS

Gibson’s Swept Side cat-back exhaust system is dyno-proven to dramatically increase the power band in the 1800-3000 RPM range, giving you more horsepower, torque, fuel economy and towability with a rich, deep exhaust tone. Gibson is known as the leading manufacturer of street-legal, high performance exhaust systems for trucks, SUVs, diesels, off-road vehicles and RVs.

  • Gibson’s most popular, affordable and leading performance exhaust system
  • Stainless steel exhausts backed by a lifetime warranty
  • Patented Superflow technology means dramatically more efficient exhaust flow
  • Optimizes towing power, hill climbing and passability
  • Comes in aluminized or stainless steel
  • Proven to improve torque, horsepower (up to 20 hp) and gas mileage
  • Mandrel-bent tubing allows for continuous airflow
  • Polished stainless tips feature sleek clampless connection
  • Dyno-tested
  • Direct fit by vehicle year, make and model
  • Made in America
  • Legal in all 50 states
  • SKU#: G27315566
  • Brand: Gibson
  • Fit Note: Standard Cab Pickup, 78.0 in. Bed, Stock Single Converter, Standard Cab Pickup, 78.0 in. Bed, Standard Cab Pickup, 96.0 in. Bed, Stock Single Converter, Standard Cab Pickup, 96.0 in. Bed
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate to Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
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Fits the following GMC K15 Years:
  • 1978 | 8 Cyl 5.7L | Base, High Sierra, Sierra Classic, Sierra Grande
  • 1976-1978 | 8 Cyl 5.0L | Base, High Sierra, Sierra Classic, Sierra Grande
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$256.95 List Price $303.20 Save $46.25 Availability: In Stock
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HEARTTHROB EXHAUST – DEEP-TONED DUAL EXIT CAT-BACK EXHAUST SYSTEMS

A power-filled and fire-breathing exhaust tone is what you will hear from every Heartthrob Deep-Toned Dual Exit Cat-Back Exhaust System. Heartthrob Exhaust manufactures a wide selection of perfect fitting, bolt-on exhausts for a wide variety of popular pickups, SUVs, cars and even older vehicles too. The split-rear duel-exit design assists with improving exhaust flow for a noticeable horsepower and torque boost. Drop those pipe cutters and blow torch! Heartthrob Exhausts are loved by pickup truck owners because it does not require any pipe cutting for a good fit. With a Heartthrob Exhaust you get the exact direct fit version for any size pickup bed and cab length. Heartthrob Exhausts are manufactured in a high tech facility in Minnesota with state-of-the-art computer based CNC manufacturing tooling and equipment. Run by a staff of 30 of dutiful employees, all of whom are knowledge filled exhaust experts, assures you will get a perfect fitting exhaust for your vehicle. This small family-owned exhaust company now has over 37 years of exhaust manufacturing experience and takes pride in every exhaust they make.

  • Manufactured in USA
  • The Deep-Toned Duel Exit Cat-Back Exhaust is Heartthrob’s best selling exhaust system
  • Will not void your vehicle’s manufacturer warranty
  • Includes glass-pack muffler tips
  • Comes with all parts necessary for installation: clamps, hangers, pipes, hardware and muffler tips
  • The split-rear duel-exit exhaust style ensures better exhaust flow
  • Designed to clear both spare tires mounted under the bed and trailer hitches
  • Dyno-tested and flow bench tested for quality assurance
  • Engineered for no restrictions from the mandrel bent tubing process
  • SKU#: HEA1004385
  • Brand: Heartthrob Exhaust
  • Fit Note: Standard Cab Pickup, 4WD
  • Emissions: 49-State Legal - no CA shipments
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
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Fits the following GMC K15 Years:
  • 1976-1978 | 8 Cyl 5.0L | Base, High Sierra, Sierra Classic, Sierra Grande
  • 1975-1978 | 8 Cyl 5.7L | Base, High Sierra, Sierra Classic, Sierra Grande
$300.10 List Price $607.40 Save $307.30 Availability: In Stock
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DYNOMAX – THRUSH EXHAUST SYSTEMS

Dynomax’s Thrush Headerback Exhaust System will not only boost your image with its turbo mufflers, but is proven to dramatically increase your vehicle’s power and performance with style and a deep, cool tone that’ll make your hot rod stand out – and impress your friends. Dynomax is a world leader in the performance exhaust space, manufacturing products held to the highest engineering standards and backed by extensive research and development.

  • Specifically designed for classics/hot rods
  • Made to be used with full-length headers
  • Most systems Include two vintage-style Thrush mufflers and smooth bent 2 ½ inch aluminized exhaust pipes
  • Most systems comes with an H-pipe balance tube
  • More cost-effective than comparable exhausts for classic vehicles
  • High-flow Thrush mufflers feature spun-locked heads and reversible chambers
  • Includes all necessary hardware
  • Stock tailpipe exit design
  • SKU#: D2289024
  • Brand: Dynomax
  • Fit Note: 96.0 in. Bed, Standard Cab Pickup, Used With PN[85003/86003/85503/85089/86089]
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Clamp-On
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Fits the following GMC K15 Years:
  • 1975-1978 | 8 Cyl 6.6L | Base, High Sierra, Sierra Classic, Sierra Grande
  • 1976 | 8 Cyl 7.4L | Base, High Sierra, Sierra Classic, Sierra Grande
$218.65 List Price $258.01 Save $39.36 Availability: In Stock
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Hooker Competition Exhaust System is designed to fit Hooker Competition headers or manifolds. It features large diameter, mandrel-bent, and 16-gauge aluminized steel tubing for improved efficiency, less back-pressure, maximum flow, and longer life.

Note:

    Specifications:

    • Header-back system
    • Dual split side exit
    • 2.25 in. piping diameter
    • Pipes, mounting hardware included
    • Muffler not included; Designed for used with Hooker Competition Headers PN 2453HKR; Modifications required if used with other headers
  • SKU#: H2616526
  • Brand: Hooker
  • Fit Note: 78.0 in. Bed, Standard Cab Pickup, 96.0 in. Bed, Standard Cab Pickup
  • Quantity Sold: Kit
  • Muffler Sound Level: Not Specified
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Clamp-On
(see more)
Fits the following GMC K15 Years:
  • 1976-1978 | 8 Cyl 5.0L | Base, High Sierra, Sierra Classic, Sierra Grande
  • 1975-1978 | 8 Cyl 6.6L | Base, High Sierra, Sierra Classic, Sierra Grande