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WEST RIVER 563-323-5554 EASTERN 563-322-8354
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Diesel engine bay with exhaust manifold at Jack's Brake & Alignment Davenport, IA
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Exhaust & emissions repair in Davenport, IA

Loud pipe? Rotten-egg smell? Emissions code that won't clear? We diagnose from the header back to the tailpipe — and the fix comes with a real warranty.

WARNING SIGNS
Free inspection
Header-to-tailpipe walk-through
Straight talk
Clamp, weld, or replace — your call
24 / 24 warranty
Parts & labor, nationwide TechNet
Warning signs

Time to come in?

Exhaust problems get louder and worse the longer you wait — and a bad emissions system can cook a catalytic converter that's not cheap to replace. Watch for:

Loud rumble or roar

Muffler rusted through, or an exhaust leak at a flange or hanger. We locate it and quote a clamp, weld, or replacement.

Rattling underneath

Broken hanger, loose heat shield, or a cat internals issue. Ignoring it lets the pipe drop — not fun on I-80.

Exhaust fumes in cabin

CO in the cabin is dangerous — that's not "just a smell." Get it in immediately, we'll find the leak.

Sulfur or rotten-egg smell

Catalytic converter isn't doing its job — usually because upstream fuel or ignition trouble is dumping raw fuel through it.

Check-engine + emissions code

P0420, P0430, EVAP, O2 sensor codes — each one has its own culprit. Factory scanners tell us which, no guessing.

Loss of power or bad MPG

A clogged cat, restricted exhaust, or failing O2 sensor kills power and mileage. We test back-pressure and airflow.

What we do

Header to tailpipe

Exhaust and emissions are one connected system — sensors, cats, pipes, mufflers, hangers, and everything in between. We diagnose it whole, then quote the smallest fix that actually solves the problem.

Muffler repair & replace
Exhaust pipe welding
Catalytic converters
Hangers & heat shields
O2 & air-fuel sensors
EVAP diagnostics
Diesel DPF / EGR / DEF
Emissions readiness
GET AN INSPECTION
Straight talk

Not every exhaust job is a full replacement

Sometimes a $40 hanger or a weld fixes what other shops quote as a cat-back system. We show you the failed spot and give you options — not just the most expensive one.

Get an Honest Quote

Quiet it down. Clear that code.

Free inspection at either shop. Written estimate. No work without your approval.

WEST RIVER · 563-323-5554 EASTERN · 563-322-8354