Exhaust for the 2000, 2001, 2002, 2003, 2004, 2005 and 2006 Tundra — JBA headers, Magnaflow and JBA complete systems, catalytic converters, Pro Flow mufflers, resonators and weldables. Three things decide fitment here: the 3.4L V6 or the 4.7L V8, the 2000-2004 or 2005-2006 header split, and your cab and bed.
Garrett T3 Exhaust Discharge Flange
(4-Bolt)
Use 2.5" OD tubing in the groove or 3" OD tubing outside the groove. 3" OD is tight near the bolt holes but works fine so you're not limited to a 2.5"...
Merge Collector
(3-1 1/2″ into 1-2 ¼″)
You've got that header all constructed, now you just need a collector to tie it all together. LC Engineering has already done the work for you, just pick...
Oxygen Sensor Adapter
(2-Bolt Style To Thread In Style)
This kit will adapt a thread in style O2 sensor (18mm) to the Toyota two-bolt style. Includes gasket plate to adapt and two studs and nuts...
Weld On Bung & Plug Kit
(Thread-In Bosch Style)
If you are installing an oxygen sensor in a system that didn't originally come with one, or if you are installing a stand-alone Wideband AFR gauge,...
Oxygen Sensor Install Kit
(2-Bolt Style)
This kit contains everything you need to install the factory 2-bolt O2 sensor into your custom exhaust. It allows you to weld in the O2 sensor wherever you...
2-Bolt Flange
(2 1/4")
Steel flange designed for connecting to our header collectors. This is perfect if you are fabricating your own exhaust from the header back. 3/8" thick, for 2-1/4" exhaust...
2-Bolt Flange
(You Choose Size)
2 1/4" Flanges:
Steel flange designed for connecting to our header collectors. This is perfect if you are fabricating your own exhaust from the header back. 3/8"...
Rubber Tailpipe Hanger
(3-Hole)
Factory 3 Hole replacement rubber insulator for tailpipe.
Contact our Tech Support Line for further information at 928-575-2174.
2-Bolt Wastegate Flange
(You Choose Style)
All of LC Engineering's flanges are laser cut then finished machined on the CNC to ensure exact tolerances and fit. These 2-bolt flanges fit most 38mm...
Toyota Exhaust Flange Hardware Kit
Refresh your exhaust hardware with this premium, high-strength replacement kit. Specifically designed for two-bolt collectors found in headers and aftermarket...
Weld-On Oxygen Sensor Flange
(2-Bolt Flange Style)
This flange is made from 3/8" mild steel, then tapped for M8 x 1.25 studs weld on. For the 2 bolt style O2 sensor. NOT for thread-in O2 sensors...
Rubber Tailpipe Hanger
(2-Hole)
Factory replacement rubber insulator for tailpipe.
Contact our Tech Support Line for further information at 928-575-2174.
Note
Which engine? The 1st gen Tundra came with a 3.4L V6 or a 4.7L V8. Every header kit on this page is 4.7L. Some complete systems cover both.
Which year? The headers split at 2004/2005 — there is a 2000-2004 kit and a separate 2005-2006 kit. They are not interchangeable.
Which cab and bed? Exhaust systems are routed to the truck, so a kit listed for an Xtra Cab short bed will not fit a different configuration. Check the listing against your truck, not just the year.
Where to Go From Here
Headers — JBA kits for the 4.7L. The factory manifolds are the restriction worth removing first.
JBA designed these around the same premise we would: the factory exhaust manifolds on these V8s are restrictive, and that is what keeps the engine from its potential. All of them are listed for the Tundra and Sequoia 4.7L.
The coating is the price difference, not the flow. Ceramic keeps heat in the pipe and out of the engine bay; bare stainless is the cheaper way to the same port design.
Complete Systems
Magnaflow exhaust, 2000-2006, 3.4L and 4.7L — single exit, listed for Limited and SR5. The one system here that covers both engines. Mandrel bends throughout, OEM-style barbed hangers, a straight-through stainless muffler, and dyno-tested for the fitment and the gain.
The direct-fit converter here is listed as 47-state smog legal and not legal for installation on California, Colorado or New York emissions controlled vehicles. It is listed for the 3RZ and 5VZ, so it is the 3.4L V6 part. Measure before ordering, as there is more than one factory configuration.
Mufflers and Resonators
LCE Pro Flow mufflers in 2 1/4" and 2 1/2", 14" and 18" bodies, three-chamber and straight-through, satin finish — the building blocks for a custom system rather than a bolt-on kit. Exhaust wrap is on this page too.
Tell Us the Truck
Year, engine, cab and bed — with those four we can confirm a header and a system that actually bolt together. Get in touch via our contact page. The rest of the truck is in the 2000-2006 Tundra catalogue.