---
product_id: 37022150
title: "thy-303y-c Exhaust Header for 454 Truck 2WD"
brand: "doug thorley headers"
price: "KSh69385"
currency: KES
in_stock: false
url: https://www.desertcart.co.ke/products/37022150-thy-303y-c-exhaust-header-for-454-truck-2wd
store_origin: KE
region: Kenya
---

# CARB approved, 50 state legal Ceramic coated inside & out 14GA extra thick tubing thy-303y-c Exhaust Header for 454 Truck 2WD

**Brand:** doug thorley headers
**Price:** KSh69385
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Upgrade your 454 Truck’s roar with precision and power! 🛠️

## Quick Answers

- **What is this?** thy-303y-c Exhaust Header for 454 Truck 2WD by doug thorley headers
- **How much does it cost?** KSh69385 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/37022150-thy-303y-c-exhaust-header-for-454-truck-2wd)

## Best For

- doug thorley headers enthusiasts

## Why This Product

- Trusted doug thorley headers brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Extra thick 14GA tubing and 3/8 inch flanges ensure unmatched durability for your 454 Truck 2WD.
- • **Proudly American:** Made in the USA with a limited lifetime warranty for peace of mind.
- • **Legally Street Ready:** CARB approved and 50 state smog legal—drive with confidence everywhere.
- • **All-Weather Performance:** Ceramic coating inside and out provides superior heat resistance and corrosion protection.
- • **Plug & Play Installation:** Complete kit includes all gaskets and hardware for a hassle-free upgrade.

## Overview

The thy-303y-c Exhaust Header by Doug Thorley Headers is a premium, USA-made upgrade for 454 Truck 2WD models, featuring extra thick 14GA tubing, ceramic coating inside and out for durability and heat resistance, and comes with all necessary installation hardware. CARB approved and 50 state smog legal, it offers a limited lifetime warranty for long-lasting performance.

## Description

Doug Thorley Headers THY-303Y-C long tube tri-y headers deliver the ultimate in performance and gas mileage for your 1973-1991 GM Pickup Truck , Suburban, Blazer/Jimmy, 2WD ONLY and 1975-2001 Class 'A' Motorhome with the P-30 chassis. Doug Thorley Headers is the originator of the tri-y header design, which is the most efficient way to increase horsepower and torque over a broad RPM range, and more importantly the range where you use it most. The headers are manufactured using heavy duty 14GA steel tubing, and super flat 3/8 inch head flanges. They are then silver ceramic coated inside and out, which looks great, drastically reduces under-hood temperatures, and creates a strong barrier to protect the headers from the environment. APPLICATION SPECIFICS: 1973-1991 GM Pickup Truck , Suburban, full-size Blazer, full-size Jimmy / 1975-2001 Class A Motorhome, P-30 chassis, 366-454 V8, 2WD ONLY, will not fit D-port cylinder heads, no air injection fittings. No y-pipes included, may require professional installation.

## Features

- Made in the USA with limited lifetime warranty
- Extra thick 14GA tubing and 3/8 inch thick flanges
- Ceramic coated inside and out
- Kit includes all required gaskets and/or installation hardware
- CARB approved, 50 state smog legal

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Doug Thorley Headers |
| Brand | Doug Thorley Headers |
| Model | thy-303y-c |
| Item Weight | 42.5 pounds |
| Package Dimensions | 37.8 x 21.8 x 11 inches |
| Item model number | thy-303y-c |
| Manufacturer Part Number | thy-303y-c |

## Images

![thy-303y-c Exhaust Header for 454 Truck 2WD - Image 1](https://m.media-amazon.com/images/I/616aiS9pZGL.jpg)
![thy-303y-c Exhaust Header for 454 Truck 2WD - Image 2](https://m.media-amazon.com/images/I/71UNJUg9b0L.jpg)
![thy-303y-c Exhaust Header for 454 Truck 2WD - Image 3](https://m.media-amazon.com/images/I/71vkPmxD02L.jpg)
![thy-303y-c Exhaust Header for 454 Truck 2WD - Image 4](https://m.media-amazon.com/images/I/71ZI4ptpkcL.jpg)

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**Shop now:** [https://www.desertcart.co.ke/products/37022150-thy-303y-c-exhaust-header-for-454-truck-2wd](https://www.desertcart.co.ke/products/37022150-thy-303y-c-exhaust-header-for-454-truck-2wd)

---

*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-03-03*