Western Tire & Auto
“I lost faith in dealership work and I feel my truck is in good hands here”
Best Muffler & Exhaust Shops in St. Peters, MO
15 technicians listed · 4 in St. Peters · 2 open weekends · 13 rated 4.5+
Data verified October 19, 2026
Complete Auto & Exhaust
“I am always happy with my service and Tommy has been so helpful, knowledgeable, and very responsive.”
Mid America Transmission & Auto Centers
“Free estimates were other places charge just to look at your car.”
DNK Automotive is Now DNK Auto Center
“Dan and his team are honest, fair, and won't charge an arm and a leg for service.”
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Weldon Spring Automotive
“Blake and Mitch were professional and sympathetic to our situation (we were in the area due to our dog having a cancer treatment).”
Westport Autohouse
“The services are offered at affordable rates not like big name dealerships and accompanied by a great customer service experience.”
Listed for drivers in and around St. Peters, MO, these 15 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.
Area overview: St. Peters, MO
Of the 15 technicians we list here, 4 are in St. Peters itself and 11 come from towns including St. Charles (6, 5 mi), St. Louis (2, 22 mi) and O'Fallon (1, 6 mi). The technicians on this page are rated from 4.3 to 4.9 across 2,367 reviews; 13 have 50 or more reviews and 13 are rated 4.5 or higher. The topics that come up most in reviews of the technicians on this page are "price", "honest" and "fair". 2 are open on Saturdays. 1 lists staff certifications (ASE) and 7 have a BBB rating of A or A+. 10 have ten or more years of experience, the longest 65 years. 2 offer financing; 4 are family- or locally-owned and 4 list coupons or special offers. We have a website on file for 12 of the technicians on this page; 8 publish a contact page; 3 list a public email and 2 take bookings online. We count these figures across the technicians on this page; distances are straight-line, and hours and prices change, so confirm the details with the technician before you visit.
Can I book an exhaust job online with shops listed for St. Peters?
An online booking link appears on 2 of the 15 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.
Greg's Auto Service and Repair
“I'm grateful I found an honest shop that I can take my vehicles to for servicing.”
Sigmund Auto Service
“Brought my car here twice for some engine work and some AC work, both times were fantastic experiences.”
A+ Auto Repair
“Dave fit us in, and his knowledgeable, friendly staff provided the service we needed and got us on our way within a few hours.”
K & B Performance
“The best and honest people on this kind of bussines”
Bob's 66 Tire & Auto
“James and the young lady at the front desk were very kind always available to answer questions and super informative.”
Zeisler Automotive- Saint Charles
“Very nice man and the service is great”
Lucky Omen Garage
“I had tires that desperately needed to be put on my vehicle and he came in on a Saturday just to do them for me.”
St Charles Foreign Car Inc
“Excellent service for my Toyota and Mecedes..”
Craigs Customs
“They got my Corvette in and fixed while I waited and did a great job with the exhaust repair.”
Why these companies made our list
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