Frequently Asked Questions

A custom exhaust system is built specifically for your vehicle and performance goals, including headers, catalytic converters, mufflers, and tailpipes fabricated and welded in-house. At Les Bois Automotive, we design systems that optimize flow, sound, and fitment rather than forcing universal parts.

A lift kit increases ground clearance for off-road capability but can alter your vehicle's center of gravity, steering geometry, and drivetrain angles. Proper installation includes adjustments to suspension, alignment, and sometimes gearing to maintain safe handling and performance on and off the road.

Axle gearing changes are recommended when you install larger tires or lift kits, as they restore lost power and improve acceleration. At Les Bois Automotive, we help Boise drivers select the right gear ratio to match tire size, towing needs, and driving conditions.

Yes, performance upgrades like improved brakes, suspension, cooling systems, and fuel injection work well on daily drivers seeking better handling, reliability, or towing capacity. These modifications are tailored to your specific goals without sacrificing everyday drivability or safety.

Bolt-on exhaust systems are pre-made parts designed to fit specific makes and models, while custom exhaust is fabricated to your vehicle's exact specs and performance needs. Custom systems offer better fitment, sound tuning, and flexibility for modified or specialized builds.

Yes, most lift kits require adjustments such as extended brake lines, driveline modifications, steering corrections, and wheel alignment to ensure safe operation. At Les Bois Automotive, we handle the full scope of lift kit installation and related fabrication work in-house.

Idaho's rocky terrain, dust, and elevation changes can stress suspension, cooling systems, and windshields. Regular maintenance of brakes, fluids, and undercarriage components helps prevent damage and keeps your 4x4 ready for trails around Boise and beyond.

Loose rocks, gravel, and debris kicked up by tires or other vehicles strike the windshield at high speed, causing chips or cracks. Les Bois Automotive offers rock chip repair to prevent small damage from spreading and requiring full windshield replacement.

Yes, we fabricate and install bolt-on diesel exhaust systems for trucks, focusing on improved airflow and sound. We do not service diesel cars, but our shop is equipped to handle diesel truck exhaust upgrades and custom fabrication.

Upgraded brakes, enhanced cooling systems, heavier-duty suspension, and proper gearing all contribute to safer and more capable towing. At Les Bois Automotive, we assess your truck's current setup and recommend modifications that match your towing demands and payload.

Custom fabrication ensures perfect fitment, allows for unique builds, and accommodates modified vehicles that off-the-shelf parts won't fit. Our in-house welding and fabrication give us the flexibility to solve problems and build solutions tailored to your specific rig.

Installing a lift kit without adjusting related components like gearing, brake lines, or alignment can lead to poor handling, accelerated wear, and safety issues. Proper installation and complementary modifications are essential for maintaining performance and reliability.