Most people find this page because their car got loud. It happened over a week or two, or it happened all at once on a cold morning, and now the whole neighborhood knows when you leave for work. That is almost always a hole — in the muffler, a pipe, a gasket joint, or the manifold — letting exhaust out before the muffler has a chance to quiet it.
We work on the entire system in our own bays: mufflers, resonators, exhaust pipes and flex sections, manifolds, catalytic converters, oxygen sensors, hangers, and gaskets. The job starts with getting the car in the air and finding the actual leak, because exhaust noise travels and the loud end of the car is often not the broken end.
And where a section can be welded or patched and give you years, we do that instead of selling you a new one. Replacement is what happens when a part is genuinely gone, not what happens by default because it is faster to bolt on.
If you smell exhaust inside the car, stop reading and call us.
A loud muffler is an annoyance. Exhaust getting into the cabin is carbon monoxide, which is colorless, odorless on its own, and genuinely dangerous — the fumes you can smell are the warning that something you cannot smell is coming in with them. Drive with the windows down and get it looked at now: (614) 471-5388.
Woke up to a car that roars like a race car?
That is the sound of a stolen catalytic converter, and it is common enough around Columbus that we see it regularly. Thieves cut the converter out from underneath in about a minute, usually overnight, and hybrids, trucks, and anything with high ground clearance get hit hardest. File a police report for your insurance, then call us — we replace the converter and can weld on an anti-theft shield or cage so it does not happen twice.
Gradually louder over weeks is usually rust finally opening a hole in the muffler or a pipe. Loud all at once, between one drive and the next, is either a section that finally let go, a broken hanger dropping a pipe, or a stolen catalytic converter. The last one has a distinct sound — a deep aggressive roar that gets dramatically worse as you accelerate, with no rattle.
File a police report first, because your insurance will want it and comprehensive coverage often pays for this. Then bring it in. We replace the converter with a part that meets the requirements for your vehicle, replace whatever pipe got cut in the process, and can add a welded shield or cage to make the next attempt not worth the effort. The car is driveable in the meantime, but it is extremely loud and the check-engine light will be on.
Both, and we look at repairing first. If the shell is solid and the failure is a seam, a small hole, or a joint, welding it is a fraction of the cost of a new unit. What we will not do is patch something that is rusted through end to end, because you would be back in two months and paying twice. We will get the car up and show you what we are looking at.
If it is behind the muffler and the cabin is clear, it is mostly a noise and a ticket risk. If you can smell exhaust inside the car, no — that is carbon monoxide entering the cabin, and the symptoms of low-level exposure are headache, drowsiness, and confusion, which is a bad combination with driving. Windows down, get it in.
No. Ohio's E-Check program covers seven counties in the northeast corner of the state — Cuyahoga, Geauga, Lake, Lorain, Medina, Portage, and Summit. Franklin County is not one of them, so there is no emissions test to pass here. That said, a failed converter still turns on your check-engine light, still costs you fuel economy, and still has to be fixed if you ever register the car in one of those counties or sell it to someone who does.
It converts the harmful gases coming out of your engine into less harmful ones, using a honeycomb coated in platinum, palladium, and rhodium. Those three metals are why the part is expensive and also why people steal them. When a converter fails it is usually either clogged, physically broken up inside, or poisoned by an engine problem upstream — and that last one matters, because replacing the converter without fixing what killed it means killing the new one too.
It lives in the exhaust, yes, but the code does not always mean the sensor is bad. An oxygen sensor reports what it sees, and an exhaust leak upstream of it lets in outside air that makes a healthy engine read wrong. Replacing the sensor when the real problem is a leaking gasket is a common and frustrating waste. We test before we replace.
Often, and sometimes noticeably. Leaks ahead of the oxygen sensors skew the readings the engine uses to decide how much fuel to inject, so it runs richer than it needs to. A plugged converter is worse — it chokes the engine, and you feel it as a car that will not pull. Fixing either one usually gives back both the mileage and the power.
A muffler or a section replacement is generally one to two hours. Welded repairs are often quicker. Converter replacement runs longer, especially if the old hardware has to be cut off, and a full system on a rusted vehicle can be most of a day. Parts availability for converters varies by vehicle, so we will tell you what we are looking at when we quote.
Walk-ins are fine for exhaust work and a lot of it is same-day, but requesting a time gets your car on a lift sooner. If you are smelling exhaust in the cabin, say so when you call — (614) 471-5388 — and we will fit you in.
We handle muffler and exhaust work for drivers across Columbus and the surrounding communities — Worthington, Gahanna, Westerville, Bexley, Whitehall, Upper Arlington, New Albany, Minerva Park, and the Clintonville and Northland neighborhoods. See everything we do on our auto repair services page.