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Exhaust› Headers, Manifolds and Components

Doug Thorley

3.4L V6 Tri-Y Headers with Y-Pipe, Silver Ceramic Coated

$1,779.13 $1,195.00 Save $584.13

SKU: THY-507-C

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$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Doug Thorley THY-507-C is a set of 3:1 Tri-Y headers with a Y-pipe designed for 3.4L V6 engines without an external EGR tube. This header kit is compatible with 1995-2004 Toyota Tacomas, 1995-2002 Toyota 4Runners, and 2000-2004 Toyota Tundras.

Constructed from steel with a silver ceramic coating, these headers feature 1-1/2" primary tubes and a 2-1/4" collector diameter. The kit includes bolts and a performance Y-pipe, though factory manifold gaskets need to be reused. The Y-pipe outlet requires welding to connect to your existing exhaust system.
Show original supplier description
The Doug Thorley THY-507-C headers offer a performance upgrade for the 3.4L V6 engine in select Toyota and Lexus vehicles. This kit features 3:1 Tri-Y long tube headers, designed to improve exhaust flow and unlock noticeable increases in power output. Constructed from durable steel with a silver ceramic coating for heat resistance and aesthetics, the headers have 1-1/2" primary tubes and a 2-1/4" collector diameter. They utilize a 2-bolt factory flange for attachment. The kit includes a complete performance Y-pipe with 2-1/4" inlets and a 2-1/2" outlet, which will require welding to connect to your existing exhaust system. Bolts are included, but you will need to reuse your factory manifold gaskets. It is compatible with 1995-2004 Toyota Tacomas, 1995-2002 Toyota 4Runners, and 2000-2004 Toyota Tundras, all equipped with the 3.4L V6 engine. The CARB E.O. number for this product is D-540-6. Doug Thorley Headers provides a Limited Lifetime Warranty to the original purchaser.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandDoug Thorley
Part NumberTHY-507-C
CategoryExhaust
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