Exhaust & Emissions Services in Hayward, CA

Whether your check engine light is on for a P0420 catalyst code or your muffler has rusted through, S&R Motors in Hayward handles exhaust and emissions repair for every make and model. Our ASE-certified technicians diagnose accurately, fix the root cause, and verify the repair clears emissions monitors so you pass California smog the first time.

We service the full exhaust system from manifold to tailpipe: oxygen sensor replacement, catalytic converter service (CARB-compliant for California), muffler and resonator replacement, exhaust pipe and clamp repair, manifold gasket replacement, EGR system service, and EVAP system diagnosis and repair. We also handle smog pre-checks: we read every emissions readiness monitor, verify they're set, clear any pending codes properly, and confirm the vehicle is ready before you go to a smog station. We use OEM and CARB-approved parts so your repair is legal in California.

Exhaust leaks let dangerous gases — including carbon monoxide — into the cabin. They also cost fuel economy by confusing oxygen sensors. A bad catalytic converter dumps unburned hydrocarbons, hurts performance, and fails smog. EVAP system faults are the most common cause of check engine lights and almost always block smog certification. Diagnosing the actual cause — sensor, gasket, leak, or catalyst — saves you from buying a $1,500 catalytic converter when an $80 sensor was the issue.

California has some of the strictest emissions standards in the country, and Hayward is no exception. Drivers across Hayward, San Lorenzo, Castro Valley, Union City, San Leandro, and Fremont rely on us for emissions repair that's compliant, legal, and effective. CARB-approved parts, factory-spec procedures, and a smog pre-check before you ever drive to a smog station.

Why Choose S&R Motors for Exhaust & Emissions in Hayward

• ASE-certified technicians
• CARB-compliant catalytic converters
• Oxygen sensor and EVAP repair
• Muffler, resonator, and exhaust pipe service
• California smog pre-checks
• OEM and approved aftermarket parts
• 12-month / 12,000-mile parts warranty
• Conveniently located on Mission Blvd in Hayward