A repair shop quoted $1,264.40 to replace a muffler, and a second shop in Burlington, Vermont, found that the exhaust leaks actually came from a gasket and bolts. The first quote included a $1,082 muffler assembly, a $17 gasket and $4.24 of nuts and bolts, with labor making up the rest. A fix aimed at the real leaks would cost roughly $150.
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The quote surfaced in a TikTok video from mechanic @mainly_mechanics, who tagged TJ’s Auto Repair to review it, and Autoblog’s Earl Lee wrote it up on November 1, 2026. The estimate said the muffler was rusted and leaking and would fail the Vermont State Inspection, a claim the second shop’s inspection did not support. Neither the customer nor the first shop is named, and the vehicle’s year, make and model were not disclosed.
What the $1,264.40 quote contained
As Autoblog laid out the line items, the muffler assembly at $1,082 was by far the biggest piece, followed by roughly 48 minutes of labor. Subtracting the listed parts from the total leaves about $161 for labor, which is in line with the $159.99 the mechanic used in his own estimate. The labor line is not where the money went.
The gap sits in the part. The mechanic said a muffler costs a business $157, around $10 more for an individual and almost $300 through a retailer, against a list price of $284. Adding his figures for the muffler, the $17 gasket, the $4.24 of hardware and $159.99 of labor produces about $338, roughly a third of the shop’s number. Autoblog suggested the price might reflect factory-original parts rather than aftermarket ones, and noted that the vehicle details needed to settle that were missing.
Gasket, bolts and surface rust
The second shop’s inspection found leaks at the gasket and the bolts, and none at the rear of the system, where only surface rust showed, not enough to perforate the muffler or pipes. A gasket-and-bolt repair, as Autoblog summarized it, would run about $21 in parts and roughly $100 in labor, around $150 in all.
Exhaust leaks do matter. Autoblog’s explainer on exhaust systems says leaks can trap harmful gases under the car and let fumes into the cabin, that road salt and condensation corrode components, and that confirming whether the muffler is at fault takes raising the vehicle to inspect the whole system. That last point is the one the first quote seems to have skipped. A leak at a joint can sound like a failed muffler from underneath, and a gasket costs a fraction of the assembly it seals.
The safety stakes are why a shop cannot simply wave off a leak. Per that explainer, leaks near the floor can burn insulation, a leak near a fuel leak can ignite fuel, and a leaking manifold can damage wiring under the hood. A louder exhaust can also draw fines under local noise ordinances. None of those risks calls for a $1,082 assembly when the source is a failed gasket and loose hardware, which is the point of putting the car on a lift before writing the quote.
Vermont inspection and part choices
The quote cited Vermont State Inspection, and the state’s vehicle inspection program does list the exhaust system among its safety items, alongside wheels, tires, brakes, lights and the fuel system. That makes a leaking joint a legitimate reason to fail, but a gasket repair answers it just as well as a new muffler. Autoblog reports that Vermont accepts repairs that are as good as or better than the original equipment.
Part sourcing is the other variable. Autoblog’s guide to rebuilt and remanufactured parts says the price differences among new, rebuilt and used parts are significant, though its figures date from 2008 and give no dollar amounts. It does not settle whether a $1,082 assembly was original equipment or an upmarket replacement.
Getting a second opinion
Lee was measured about the shop. A quote is not a charge, he wrote, and the customer shopped around before paying anything. A quick ballpark given before a full underbody inspection would be understandable, while quoting a muffler after inspecting and finding a gasket would be a problem. The $900-plus margin over the cost the mechanic cited is steep either way.
The Federal Trade Commission’s auto repair guidance offers a practical check: ask for a written estimate that identifies the problem, the parts and the expected labor, and for expensive or complicated work consider a second opinion, including whether a diagnostic fee applies if the job goes elsewhere. Here, one extra inspection moved the bill from $1,264.40 to about $150.
What remains unknown is whether the first shop ever put the car on a lift. Without its name, the vehicle and the original paperwork, the video proves the second shop’s diagnosis, not the first shop’s intent.
This article was produced with the assistance of AI and reviewed by Morning Overview editors prior to publication.
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