# aFe Apollo GT Series 4in 409SS Cat-Back 20-21 GM 2500/3500HD V8-6.6L L8T - Black Tip

This cat-back exhaust system is constructed of 4" mandrel-bent 409 stainless steel tubing for maximum strength and durability. This system features a high-flow 409 stainless steel muffler, producing a deep sound. Finishing off this exhaust system is a 5" diameter black 409 stainless steel intercooled clamp-on exhaust tip. The tip features an aFe POWER logo plate riveted on for a unique style. This system produces a deep sound unleashing all available horsepower and torque. Utilizing a factory style flange and hangers this system is a direct bolt-on system, which requires no cutting or modifications for a hassle-free installation. Utilizing state-of-the-art computer-aided design technology, this exhaust system is designed for custom, high tolerance factory fitment. 100% MIG-Welded for race-proven strength and durability.

-   5" Diameter Black 409 Stainless Steel Intercooled Clamp-On Exhaust Tip
-   All Necessary Hardware is Included for a Hassle-Free Installation
-   Constructed from 4" Mandrel-Bent 409 Stainless Steel Tubing
-   Utilizes Factory Style Flange and Hangers for a Secure Fit
-   100% MIG-Welded for Strength and Durability

This Part Fits:

Year

Make

Model

Submodel

2020-2026

Chevrolet

Silverado 2500 HD

Custom

2020-2026

Chevrolet

Silverado 2500 HD

High Country

2020-2026

Chevrolet

Silverado 2500 HD

LT

2020-2026

Chevrolet

Silverado 2500 HD

LTZ

2020-2026

Chevrolet

Silverado 2500 HD

WT

2020-2026

Chevrolet

Silverado 3500 HD

High Country

2020-2026

Chevrolet

Silverado 3500 HD

LT

2020-2026

Chevrolet

Silverado 3500 HD

LTZ

2020-2026

Chevrolet

Silverado 3500 HD

WT

2020-2026

GMC

Sierra 2500 HD

AT4

2024-2026

GMC

Sierra 2500 HD

AT4X

2020-2021

GMC

Sierra 2500 HD

Base

2020-2026

GMC

Sierra 2500 HD

Denali

2022-2026

GMC

Sierra 2500 HD

Pro

2020-2026

GMC

Sierra 2500 HD

SLE

2020-2026

GMC

Sierra 2500 HD

SLT

2020-2026

GMC

Sierra 3500 HD

AT4

2020-2021

GMC

Sierra 3500 HD

Base

2020-2026

GMC

Sierra 3500 HD

Denali

2022-2026

GMC

Sierra 3500 HD

Pro

2020-2026

GMC

Sierra 3500 HD

SLE

2020-2026

GMC

Sierra 3500 HD

SLT

## Details

- **Price:** 1220.71 CAD
- **Vendor:** aFe
- **Type:** Catback

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1220.71 CAD | In stock |

## Images

- Photo - Primary
- User 4
- Photo - Unmounted

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/afe-apollo-gt-series-4in-409ss-cat-back-20-21-gm-2500-3500hd-v8-6-6l-l8t-black-tip)
> Updated: 2026-07-04