3.5 Inch Diameter

Light and medium-duty diesel trucks deserve upgrades, too. If you come home from a long-haul trip to climb behind the wheel of your pickup, you might feel like you're lacking in power and performance. That's where a 3.5-inch exhaust pipe upgrade comes into play. Find out how going with a larger cat back pipe system could make all the difference when you put the pedal down.

What Changes With a 3.5 Inch Exhaust Upgrade

Most diesel trucks that are built for light and medium duty feature a standard 3-inch or smaller exhaust pipe, particularly after the catalytic converter. This limits the power of many engines, especially those producing around 500 horsepower or more. 

Installing 3.5-inch exhaust pipes in a cat back application for turbo diesel engines works to reduce backpressure on the system, leading to improved performance. Consider that a 3.5-inch pipe provides 36% more volume than a 3-inch pipe, and you'll understand the kind of difference this simple swap can make.

Many drivers find they can squeeze extra torque and horsepower out of the same diesel truck by making the upgrade. Increasing exhaust flow can also reduce overheating in the engine, improving fuel efficiency and reducing wear and tear during high-demand activities like towing. 

However, moving up to 4-inch pipes often interferes with the necessary backpressure needed for light-duty trucks to perform as expected. A 3.5-inch exhaust pipe splits the difference, boosting efficiency and power without risking a loss of velocity for engines that are between 300 and 500 horsepower. For many trucks, this kind of change also deepens the sound coming from the exhaust for a more impressive rumble when you accelerate.

Find the Right Parts for Your Truck

Wondering which aftermarket exhaust pipes will work for your diesel truck in particular? Use our filter options to narrow down our products to what works for your vehicle. We also carry options for installing aftermarket exhaust parts with minimal or no welding, including butt joint clamps. 

Get everything you need for your truck exhaust upgrades all at one source with our help. We carry 3.5-inch pipes and accessories such as:

• Heat shields
• Mufflers
• Elbows, 90 degrees and more
• Couplers and connectors
• Flex hoses and pipes
• Y-pipes, reducers, and stacks

Other Options for Exhaust Upgrades

In addition to 3.5-inch exhaust pipe options, we also offer a wide range of exhaust upgrades for semi-trucks. Consider converting to 5-inch or 6-inch pipe systems for your semi truck to get the most fuel efficiency and power from everything you drive.

Reasons To Stick with Truck Pipes USA

Here at Truck Pipes USA, we provide a wide assortment of 3.5-inch exhaust components. Narrow down your many choices by exploring each subcategory, and put together the kit needed for any upgrades you have in mind. Our filters and sorting options help you find parts that match your truck's make and model, saving you both time and money. 

If you have any questions about finding the right fit or choosing an upgrade, contact our expert team for advice.