Muffler & Brake Shops in Montana

13 muffler, exhaust and brake shops in 8 cities and towns. Exhaust systems, mufflers, catalytic converters and brake work. Typical turnaround: same day to 2 days.

How Many Muffler, Exhaust and Brake Shops Are in Montana?

We list 13 muffler, exhaust and brake shops in Montana, across 8 cities and towns; the most are in Helena (4), Billings (2), Great Falls (2). Typical turnaround is same day to 2 days. Ask each for a written quote with every fee included and compare the totals.

Updated November 6, 2026 · Source: OpenStreetMap (refreshed November 6, 2026).

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Before You Hire

Can I get a written estimate with parts and labor listed separately before any work starts?
What is your hourly labor rate, and is there a diagnostic fee? Is it credited toward the repair?
Will you call me for approval if the job grows beyond the estimate?
Are your technicians ASE certified in this kind of repair?
Are the parts new OEM, aftermarket or rebuilt?

Ask to see the measurement or photos when told brake parts are worn out.
Catalytic converter rules differ by state, and California-compliant parts cost more.