Looking for the right exhaust system for your diesel pickup? This guide compares five top options, focusing on durability, fit, and performance for common American diesel trucks. Best for heavy-duty use, street performance, or towing, these picks cover aluminized steel and stainless variants, including cat-back and dual systems. This overview helps buyers decide which setup aligns with engine size, bed length, and emissions considerations. The summary table below highlights the key strengths of each product for quick comparison.
| Product | Best For | Material | Notes |
|---|---|---|---|
| Flowmaster 17360 Force II Cat-Back Exhaust Kit | Daily driving with a performance edge | Aluminized steel with stainless tip | Mandrel-bent tubing, easy install |
| FGJQEFG 5″ T Pipe Dual Smoker Exhaust Stack System | Showy dual exhaust with maximum flow | Aluminized steel | Universal fit for full-size pickups |
| Diamond Eye K4110A-RP Duramax 4″ Cat Back | Duramax engines with cat-back setup | Aluminized steel | No muffler configuration |
| Truck Exhaust Kits Shop Line Dual Exhaust System 2.5 | Balanced performance and ease of install | Aluminized pipe, stainless flow II exhaust | Includes installation hardware |
| Truck Exhaust Kits Shop Line Dual Exhaust System 2.5 Flowmaster 40 Series | Clean, robust street exhaust with polished tips | Aluminized tubing | Includes hardware and tips |
Flowmaster 17360 Force II Cat-Back Exhaust Kit
The Flowmaster 17360 Force II cat-back system uses mandrel-bent 16-gauge aluminized tubing with a polished stainless tip. It is designed to fit 1999–2007 Chevy/GMC 1500 with 4.3L, 4.8L, or 5.3L engines in 2WD or 4WD configurations. This kit emphasizes maximum performance through a dyno-tuned design. Best for pickup owners seeking noticeable horsepower gains and an aggressive exhaust tone, especially on standard cab short bed configurations. A potential limitation is rust risk on lower-end aluminized steel in harsh climates, though the included hardware supports straightforward installation.
Who it’s best for: Buyers prioritizing a dyno-tuned flow with a durable, bolt-on cat-back kit for classic body style Chevrolet and GMC trucks.
FGJQEFG 5″ T Pipe Dual Smoker Exhaust System
This universal 5″ T-pipe dual smoker exhaust system features mandrel-bent tubing for maximum flow, constructed in aluminized steel with a silver coating. It’s designed to fit Chevy, Dodge, and Ford full-size pickups. Best for builders seeking a visually striking dual-stack look with strong airflow, this kit may require custom mounting hardware on some trucks. A caution: universal kits may need minor tweaks for exact fit on certain models.
Who it’s best for: Enthusiasts wanting a bold dual-stack appearance and a high-flow path for larger diesel engines.
Diamond Eye K4110A-RP Duramax 4″ Cat Back
The Diamond Eye K4110A-RP is a 4″ cat-back system designed specifically for Duramax engines, using aluminized steel for durability and an uncomplicated install. Best for Duramax-equipped trucks needing a direct cat-back upgrade without a muffler, it provides a straightforward upgrade with a focus on flow. Limitation: no muffler configuration may produce a louder exhaust note that some operators prefer to moderate with a resonator or muffler option.
Who it’s best for: Duramax owners who want a clean, direct cat-back upgrade with simple installation and a focus on flow over sound suppression.
Shop Line Dual Exhaust System 2.5 With Flow II
This dual exhaust kit uses a Flow II high-performance straight-through stainless muffler with 2.5″ mandrel-bent aluminized tailpipes. It includes installation hardware and is designed to comply with emissions requirements while enhancing exhaust flow. Best for riders who want a strong exhaust note without complicated fabrication. Caution: some vehicles may require minor trimming or mounting adjustments for optimal fit.
Who it’s best for: Truck owners seeking a robust dual-exit system that stays within emissions guidelines and installs with standard tools.
Shop Line Dual Exhaust System 2.5 Flowmaster 40 Series
This dual-system kit features Flowmaster 40 Series mufflers with polished rolled tips. It uses 2.5″ aluminized tubing and includes all necessary hardware for installation. Best for drivers seeking a balanced, deeper exhaust tone with a traditional look. Limitation: aluminized steel may require attention in coastal or highly salted environments to prevent surface rust over time.
Who it’s best for: Buyers desiring a classic Flowmaster tone and a straightforward, install-it-yourself approach with durable materials.
Buying Guide
- Vehicle compatibility and engine type: Confirm the upgrade matches your engine size, model year, and bed configuration. Some systems are model-specific (such as Duramax-focused or Chevy/GMC 1500 fits), while others are universal but may require minor fabrication.
- Material and corrosion resistance: Aluminized steel is affordable and durable in many climates; stainless steel variants resist corrosion longer but cost more. Consider your climate and road exposure (salt, humidity).
- Layout and performance goals: Cat-back systems typically improve flow and tone; dual stacks or larger pipe diameters can raise intake efficiency and exhaust gas movement, affecting sound and torque.
- Emissions and compatibility: Some kits state compliance with emissions controls. Ensure the kit does not compromise OEM components or SCR systems in diesel trucks.
- Installation considerations: Look for kits that include mounting hardware and clear installation instructions. Mandrel bends reduce restriction but may require alignment checks during installation.
- Sound level and tone: Muffler configurations (no muffler vs. straight-through) influence volume and drone. Decide if you want a deeper rumble or a quieter daily driver.
- Warranty and support: Check the manufacturer’s warranty terms and whether the product is backed by a retailer’s return policy if fitment issues arise.
Frequently Asked Questions
- What is a cat-back exhaust and who should install it? A cat-back exhaust runs from the catalytic converter to the rear of the vehicle. It’s ideal for truck owners seeking improved flow and a deeper tone, typically installed by a professional or a competent DIYer.
- Will a dual-exhaust system increase horsepower? Dual-exhaust systems can improve exhaust flow, which may enhance horsepower and torque on some diesel engines, depending on the kit and engine configuration.
- Are aluminized or stainless steel exhausts worth it? Aluminized steel is cost-effective and sufficient for many users; stainless steel lasts longer and resists corrosion but costs more.
- Do universal exhaust kits fit all trucks? Universal kits offer broad compatibility but may require trimming or mounting adjustments for a precise fit on specific models.
- Is the exhaust system compliant with emissions controls? Many kits are designed to maintain emissions-control devices; verify the product listing for emissions-compliance notes before purchase.
- Can I install these myself or should I hire a shop? Basic bolt-on installations can be DIY with the right tools, but a shop can help with alignment, clearance, and sensor compatibility for a seamless fit.