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24 technicians listed · all 24 in Fremont · 8 open weekends · 22 rated 4.5+
Data verified October 16, 2026
Listed for drivers in and around Fremont, CA, these 24 shops handle mufflers, pipes and catalytic converters. What each one says about welding, custom work and warranties comes from its own website; ratings and quotes come from public reviews.
All 24 technicians we list here are in Fremont itself. The technicians on this page are rated from 3.9 to 5.0 across 1,462 reviews; 8 have 50 or more reviews and 22 are rated 4.5 or higher. When customers rate these technicians on specific qualities, they most often praise professionalism (97%), quality (93%) and value (73%). The topics that come up most in reviews of the technicians on this page are "honest", "diagnosis" and "communication". 8 are open on Saturdays and 1 on Sundays. 1 lists staff certifications (ASE) and 9 have a BBB rating of A or A+. Domain records put 8 websites of the technicians on this page at ten or more years old; the oldest dates from 1999. 1 gives free estimates; 2 are family- or locally-owned and 1 lists coupons or special offers. We have a website on file for 12 of the technicians on this page; 9 publish a contact page; 5 list a public email and 4 take bookings online. We count these figures across the technicians on this page; hours and prices change, so confirm the details with the technician before you visit.
An online booking link appears on 4 of the 24 listings here. Most exhaust work is short enough to be a same-week appointment, though a converter or a full section may wait on a part arriving.
