2003 Toyota Highlander Exhaust Upgrade Parts
34 parts listed for your 2003 Toyota Highlander for a complete exhaust upgrade. Choose your trim on product pages to confirm exact fit. A moderate DIY project - estimated 2-5 hours.
Headers
(4)primary
Fel-Pro
Fel-Pro Toyota Camry Exhaust Manifold Gasket Set
$17.55
Fel-Pro
Fel-Pro Toyota Highlander MS 95819 Exhaust Manifold Gasket Set
$27.23
Victor Reinz
MAHLE Original Lexus Es300 03-94 Exhaust Manifold Gasket
$30.11
Victor Reinz
MAHLE Original Lexus Hs250H 12-10 Exhaust Manifold Set
$24.04
Mufflers
(30)primary
AP Exhaust
Exhaust Muffler Assembly
$128.04
Fel-Pro
Fel-Pro 15-21 Subaru WRX/13-21 WRX STI/13-20 BRZ Exhaust Pipe Flange Gasket
$12.51
Fel-Pro
Fel-Pro Honda Civic 61860 Exhaust Pipe Flange Gasket
$12.34
Fel-Pro
Fel-Pro Toyota Camry Exhaust Flange Stud & Nut
$16.50
Fel-Pro
Fel-Pro Toyota Camry Exhaust Pipe Flange Gasket
$3.44
Fel-Pro
Fel-Pro Toyota Camry Exhaust Pipe Flange Gasket
$3.48
Fel-Pro
Fel-Pro Toyota Corolla Exhaust Pipe Flange Gasket
$12.33
Fel-Pro
Fel-Pro Toyota Highlander 60554 Exhaust Pipe Flange Gasket
$4.90
Exhaust Upgrade for Other Toyota Highlander Years
Other Jobs for Your 2003 Toyota Highlander
Frequently Asked Questions
What parts do I need for a exhaust upgrade on my 2003 Toyota Highlander?
A complete exhaust upgrade on the 2003 Toyota Highlander typically requires headers, mufflers. This page groups parts commonly associated with that year, make, and model; confirm your trim on product pages for exact fit.
How long does a exhaust upgrade take on a 2003 Toyota Highlander?
A exhaust upgrade typically takes 2-5 hours and is rated as moderate difficulty. Actual time may vary depending on your experience and the specific parts being replaced.
Can I do a exhaust upgrade myself?
A exhaust upgrade is a moderate DIY project. If you have some mechanical experience and the right tools, you can handle it. Otherwise, consider having a professional do the work.
Are these parts guaranteed to fit my 2003 Toyota Highlander?
These parts are listed for the 2003 Toyota Highlander using manufacturer fitment data. Some products fit every trim, while others require trim confirmation. Use your trim in My Garage or the product page fitment checker to confirm exact fit.
What brands make exhaust upgrade parts for the 2003 Toyota Highlander?
We carry exhaust upgrade parts from trusted brands including Fel-Pro, Victor Reinz, and AP Exhaust. Filter by brand to find your preferred manufacturer.
How much does a exhaust upgrade cost for a 2003 Toyota Highlander?
The cost of a exhaust upgrade for the 2003 Toyota Highlander depends on the parts and brands you choose. Browse the parts on this page to see current pricing. Doing the work yourself saves significantly on labor costs.