Chevy Silverado Diesel Standard Bed Extended Cab / Crew Cab 2011-2015, Swept Side™ Cat-Back Diesel Exhaust System by Gibson®. 4" Tubing. Includes 4" Tailpipe. Without Muffler. Behind Rear Tire Exit. 4" Inlet / 6" Outlet Polished Stainless Round Tip. Get increased exhaust flow for more torque and horsepower with this Swept Side Diesel Exhaust System. This Gibson exhaust system reduces sound pulses and backpressure, improving turbo airflow, reducing exhaust gas temperature and enabling your engine to make maximum horsepower and torque for longer periods of time. It’s available in stainless steel or aluminized steel and comes with a polished stainless steel exhaust tip.
- Dyno tuned for each application
- Less restriction for increased exhaust flow
- Increase of up to 32 horsepower and 60 pound feet of torque, depending on application
- Maximum horsepower and torque for longer period of time
- Improves turbo airflow
- Reduces exhaust gas temperature
- Exclusive Suspended Flow Technology (SFT) design muffler
- Large diameter CNC mandrel bent exhaust tubing
- Available in stainless steel and aluminized steel
- Polished T304 stainless steel clampless exhaust tip
- Won’t void factory warranty
- Aluminized steel warranted against defects in materials and workmanship
- Limited lifetime warranty on rust through on stainless steel
- Comes with everything required for an easy bolt-on installation
- Street legal in all states
- Proudly made in the USA
The diesel engine in your truck works hard. Be good to your engine and yourself with a Gibson Swept Side Diesel Cat-Back Exhaust System. This system features much less restriction in the muffler and exhaust tubing than the factory system for increased exhaust flow. This improved flow will enable your engine to make as much as 32 more horsepower and 60 pound feet of torque, and make maximum power for longer periods of time. You’ll get improved acceleration and more power when you need it, for hauling heavy loads and trailer towing. The increased exhaust flow will also reduce exhaust gas temperature to prolong the life of your valuable engine. And replacing your restrictive factory exhaust with a Gibson Swept Side Diesel Cat-Back Exhaust System won’t void your factory warranty.
Gibson designed this exhaust system at their fully equipped research and development center, using a flow bench and engine and chassis dynos. To reduce restriction and improve exhaust flow, Gibson equips this system with a Suspended Flow Technology (SFT) design muffler and mandrel bent tubing. The all-welded construction SFT design muffler is baffled and chambered for better volume efficiency with unrestricted flow. It’s so efficient it has only 5% exhaust flow restriction, as opposed to the 34% or more restriction in a typical stock muffler. And the increased flow is achieved without using any muffler packing, so there’s no packing to blow out. Your exhaust flow and exhaust sound will remain consistent throughout the life of the muffler.
The other key to less restriction and improved flow is mandrel bent tubing. First Gibson selects the optimal tubing diameter for the best engine efficiency, then they use CNC mandrel tube benders to make every tubing bend. Mandrel bending ensures smooth bends and makes sure the pipe maintains its size and shape throughout the entire length. Tubes that aren’t mandrel bent can lose a percentage of their diameter in sharp bends, creating restriction. CNC mandrel bending provides consistent bending so every system flows as designed.
Finally, all Gibson exhaust system components are joined with a “slip fit”, where an exhaust system component fits into the larger opening of the next downstream component. This method reduces the turbulence that is common with ‘ball-and-socket” or “flange-and-gasket” joints, which can cause power-robbing backpressure.
The Gibson Swept Side Diesel Cat-Back Exhaust System is available in your choice of stainless steel or aluminized steel. Each comes with a highly polished T304 stainless steel clampless exhaust tip. The system comes with everything required for installation, including zinc plated factory style hangers and clamps, and detailed instructions. Aluminized systems are warranted against defects in materials and workmanship, but not rust through, for as long as the original purchaser owns the vehicle on which the system is installed. Stainless steel systems are warranted against defects in materials and workmanship, including rust through, for as long as the original purchaser owns the vehicle on which the system is installed.
Gibson exhaust systems are manufactured in the USA.344.70 386.25
Brand: Gibson Part Numbers:
Gibson® Performance Exhaust is a family run company based in Corona, California. Owners Ron and Julie Gibson started the company after they couldn’t find performance products to meet their own needs, and decided to build exhaust systems themselves. Today Gibson is one of the largest aftermarket performance exhaust products companies in the world. Gibson is committed to building cost-effective exhaust systems that deliver more performance for the dollar, and make more horsepower and torque in the lower rpm range, where it’s needed for real world driving. All of Gibson’s street applications are 50-state emissions legal and do not affect the factory warranty.
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