Custom Built Exhaust for Any Vehicle

Professional exhaust repair and fabrication serving drivers in Boise, Idaho.

When your exhaust system develops a leak or sounds louder than it should, you need more than a patch job. Drivers in Boise deal with rusted tailpipes, damaged mufflers, and worn-out exhaust components that change how your vehicle runs and sounds. Les Bois Automotive handles everything from single-part replacements to completely custom-built exhaust systems designed to fit your vehicle exactly as it needs to be.

This work includes new mufflers, tailpipes, catalytic converters, headers, and aftermarket accessories that change your vehicle's performance or tone. If you drive a bolt-on diesel setup, the shop can handle that as well, though full diesel fabrication is not offered. Every system is built or repaired to match the specifications your vehicle requires, whether that means restoring factory quiet operation or supporting modifications you've already made. Boise roads and weather contribute to exhaust wear, and the shop accounts for that in every installation.

If your exhaust needs replacement or custom work in Boise, reach out to discuss what your vehicle requires.

What the work involves and what changes

The shop starts by inspecting the full exhaust system from the manifold to the tailpipe exit, identifying rust, holes, broken hangers, or failing catalytic converters. In Boise, where winter salt and temperature swings cause corrosion, this inspection often reveals damage in multiple sections. Repairs are made using welded joints and mandrel-bent tubing when custom work is needed, and all components are test-fitted before final installation.

After the work is finished, your vehicle will sound the way it should, whether that means quieter cabin noise or a specific tone you requested. You will notice smoother engine performance if a clogged or damaged catalytic converter was replaced, and your check engine light will turn off if it was triggered by exhaust sensor faults. Leaks that caused fumes or rattling noises will be gone.

The shop does not service diesel vehicles beyond bolt-on exhaust installations, so full diesel engine exhaust fabrication falls outside the scope of work. Aftermarket performance systems are matched to your vehicle's engine and tuning setup to avoid fitment or clearance issues. Most jobs are completed in one day depending on the level of custom fabrication required.

You probably have a few questions before scheduling

Most people want to know what the repair will involve, how long it takes, and whether custom work is worth doing before they book an appointment.

What does a custom exhaust system include?
It includes new piping from the headers or manifold all the way to the tailpipe exit, along with your choice of muffler, resonator, and tip style. Everything is welded and fitted to your vehicle's undercarriage.
How long does exhaust repair or installation take?
Most repairs or replacements take a few hours, while a fully custom-built system can take a full day depending on the complexity of the bends, hangers, and clearance adjustments needed.
Why would I need a new catalytic converter?
You need one if yours is clogged, cracked, or triggering a check engine light due to failed emissions readings. A failing catalytic converter reduces power and fuel efficiency noticeably.
What happens if my exhaust has multiple leaks?
The shop will identify every leak point during inspection and recommend either sectional replacement or a full system rebuild depending on the extent of rust or damage throughout the pipes.
Can you work on lifted trucks or modified vehicles?
Yes, the shop regularly works on lifted and modified vehicles and will adjust exhaust routing and hanger placement to match your truck's ride height and clearance needs.

Les Bois Automotive has been building and repairing exhaust systems for vehicles across Boise for years, and the shop handles both factory replacements and custom setups that require fabrication from scratch. If your exhaust is leaking, loud, or not passing emissions, call (208) 481-0690 to schedule an inspection.