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GMC S15 Exhaust System

We have 4 Items In-stock. Select a year to continue.
$390.19 List Price $460.42 Save $70.23 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#: HEA1008040
  • Brand: Heartthrob Exhaust
  • Fit Note: Extended Cab Pickup, 4WD, Extended Cab Pickup, RWD, Standard Cab Pickup, 4WD, Standard Cab Pickup, RWD
  • 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
(see more)
Fits the following GMC S15 Years:
  • 1988-1990 | 6 Cyl 4.3L | Base, High Sierra, Sierra Classic
  • 1988 | 6 Cyl 4.3L | Gypsy
$167.57 List Price $326.18 Save $158.61 Availability: In Stock
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DYNOMAX – SUPER TURBO EXHAUST SYSTEMS

Dynomax’s Super Turbo cat-back exhaust system will not only boost your image, but is dyno-proven to dramatically increase your vehicle’s power and performance with style and a nice, cool tone. 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.

  • Backed by a limited lifetime warranty
  • Proven via dyno to flow 700 SCFM
  • Interior fiberglass matting absorbs annoying resonance for nice tone
  • Improves torque and horsepower as well as mileage
  • Mandrel-bent aluminized tubing allows for continuous airflow
  • Includes all necessary hardware
  • Direct fit
  • Legal in all 50 states
  • Straight design means exhaust flows freely and backpressure is gone
  • Uses stock hanger/mounting locations

  • SKU#: D2217472
  • Brand: Dynomax
  • Fit Note: 2.25 System, Incl. Super Turbo Muffler, Tail Pipe, Clamps, Stock Replacement Pipe Is Not Included In Kit, Intermediate Pipe Required, 72.1 in. Bed, Extended Cab Pickup, RWD, 2.25 System, Incl. Super Turbo Muffler, Tail Pipe, Clamps, Stock Replacement Pipe Is Not Included In Kit, Intermediate Pipe Required, 72.1 in. Bed, Extended Cab Pickup, 2.25 System, Incl. Super Turbo Muffler, Tail Pipe, Clamps, Stock Replacement Pipe Is Not Included In Kit, Intermediate Pipe Required, 72.1 in. Bed, RWD, 2.25 System, Incl. Super Turbo Muffler, Tail Pipe, Clamps, Stock Replacement Pipe Is Not Included In Kit, Intermediate Pipe Required, 72.1 in. Bed, Standard Cab Pickup, RWD, 2.25 System, Incl. Super Turbo Muffler, Tail Pipe, Clamps, Stock Replacement Pipe Is Not Included In Kit, Intermediate Pipe Required, 72.1 in. Bed, Standard Cab Pickup, 2.25 System, Incl. Super Turbo Muffler, Tail Pipe, Clamps, Stock Replacement Pipe Is Not Included In Kit, Intermediate Pipe Required, 88.1 in. Bed, Extended Cab Pickup, RWD, 2.25 System, Incl. Super Turbo Muffler, Tail Pipe, Clamps, Stock Replacement Pipe Is Not Included In Kit, Intermediate Pipe Required, 88.1 in. Bed, Extended Cab Pickup, 2.25 System, Incl. Super Turbo Muffler, Tail Pipe, Clamps, Stock Replacement Pipe Is Not Included In Kit, Intermediate Pipe Required, 88.1 in. Bed, RWD, 2.25 System, Incl. Super Turbo Muffler, Tail Pipe, Clamps, Stock Replacement Pipe Is Not Included In Kit, Intermediate Pipe Required, 88.1 in. Bed, Standard Cab Pickup, RWD, 2.25 System, Incl. Super Turbo Muffler, Tail Pipe, Clamps, Stock Replacement Pipe Is Not Included In Kit, Intermediate Pipe Required, 88.1 in. Bed, Standard Cab Pickup, 2.25 System, Incl. Super Turbo Muffler, Tail Pipe, Clamps, Stock Replacement Pipe Is Not Included In Kit, Intermediate Pipe Required, Requires PN[35413] 2.25 in. Clamp, Replaces O.E. Bracket, 72.1 in. Bed, Extended Cab Pickup, RWD, 2.25 System, Incl. Super Turbo Muffler, Tail Pipe, Clamps, Stock Replacement Pipe Is Not Included In Kit, Intermediate Pipe Required, Requires PN[35413] 2.25 in. Clamp, Replaces O.E. Bracket, 72.1 in. Bed, Extended Cab Pickup, 2.25 System, Incl. Super Turbo Muffler, Tail Pipe, Clamps, Stock Replacement Pipe Is Not Included In Kit, Intermediate Pipe Required, Requires PN[35413] 2.25 in. Clamp, Replaces O.E. Bracket, 72.1 in. Bed, RWD, 2.25 System, Incl. Super Turbo Muffler, Tail Pipe, Clamps, Stock Replacement Pipe Is Not Included In Kit, Intermediate Pipe Required, Requires PN[35413] 2.25 in. Clamp, Replaces O.E. Bracket, 72.1 in. Bed, Standard Cab Pickup, RWD, 2.25 System, Incl. Super Turbo Muffler, Tail Pipe, Clamps, Stock Replacement Pipe Is Not Included In Kit, Intermediate Pipe Required, Requires PN[35413] 2.25 in. Clamp, Replaces O.E. Bracket, 72.1 in. Bed, Standard Cab Pickup, 2.25 System, Incl. Super Turbo Muffler, Tail Pipe, Clamps, Stock Replacement Pipe Is Not Included In Kit, Intermediate Pipe Required, Requires PN[35413] 2.25 in. Clamp, Replaces O.E. Bracket, 88.1 in. Bed, Extended Cab Pickup, RWD, 2.25 System, Incl. Super Turbo Muffler, Tail Pipe, Clamps, Stock Replacement Pipe Is Not Included In Kit, Intermediate Pipe Required, Requires PN[35413] 2.25 in. Clamp, Replaces O.E. Bracket, 88.1 in. Bed, Extended Cab Pickup, 2.25 System, Incl. Super Turbo Muffler, Tail Pipe, Clamps, Stock Replacement Pipe Is Not Included In Kit, Intermediate Pipe Required, Requires PN[35413] 2.25 in. Clamp, Replaces O.E. Bracket, 88.1 in. Bed, RWD, 2.25 System, Incl. Super Turbo Muffler, Tail Pipe, Clamps, Stock Replacement Pipe Is Not Included In Kit, Intermediate Pipe Required, Requires PN[35413] 2.25 in. Clamp, Replaces O.E. Bracket, 88.1 in. Bed, Standard Cab Pickup, RWD, 2.25 System, Incl. Super Turbo Muffler, Tail Pipe, Clamps, Stock Replacement Pipe Is Not Included In Kit, Intermediate Pipe Required, Requires PN[35413] 2.25 in. Clamp, Replaces O.E. Bracket, 88.1 in. Bed, Standard Cab Pickup
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Clamp-On
(see more)
Fits the following GMC S15 Years:
  • 1988-1990 | 6 Cyl 4.3L | Base, High Sierra, Sierra Classic
  • 1985-1990 | 4 Cyl 2.5L | Base, High Sierra, Sierra Classic
(see more)
$234.08 List Price $276.21 Save $42.13 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
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HEARTTHROB EXHAUST – HIGH PERFORMANCE CAT-BACK SINGLE EXIT EXHAUST SYSTEMS FOR TRUCKS & SUVs

A power-filled and aggressive exhaust tone is what you will hear from all Heartthrob Cat-Back Single Exit Performance Exhaust Systems. Heartthrob Exhaust manufactures a wide selection of perfect fitting, bolt-on exhausts for popular vehicles. The cat-back high performance design assists with improving exhaust flow for a noticeable horsepower and torque boost. Drop those pipe cutters and blow torch! Heartthrob Exhausts are loved installers because it does not require any pipe cutting for a good fit. With a Heartthrob Exhaust you get the exact direct fit version for your vehicle. 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
  • Muffler is included
  • Will not void your vehicle’s manufacturer warranty
  • Comes with all parts necessary for installation: clamps, hangers, pipes, hardware and muffler tips
  • More aggressive sound plus better exhaust flow
  • Dyno-tested and flow bench tested for quality assurance
  • Engineered for no restrictions from mandrel bent tubing process
  • SKU#: HEA2008355
  • Brand: Heartthrob Exhaust
  • Fit Note: Extended Cab Pickup, 4WD, Extended Cab Pickup, RWD, Standard Cab Pickup, 4WD, Standard Cab Pickup, RWD
  • Emissions: 49-State Legal - no CA shipments
  • Quantity Sold: Assembly
  • Muffler Sound Level: Mild to Moderate
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
(see more)
Fits the following GMC S15 Years:
  • 1988-1990 | 6 Cyl 4.3L | Base, High Sierra, Sierra Classic
  • 1988 | 6 Cyl 4.3L | Gypsy
$307.11 List Price $362.39 Save $55.28 Availability: In Stock
  • Free Ground Shipping
  • Low Price Guarantee
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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#: HEA1008050
  • Brand: Heartthrob Exhaust
  • Fit Note: Extended Cab Pickup, 4WD, Extended Cab Pickup, RWD, Standard Cab Pickup, 4WD, Standard Cab Pickup, RWD
  • 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
(see more)
Fits the following GMC S15 Years:
  • 1988-1990 | 6 Cyl 4.3L | Base, High Sierra, Sierra Classic
  • 1988 | 6 Cyl 4.3L | Gypsy