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

SKU: AFE49-44123-B

Exhaust Systems

AFE Exhaust Cat Back

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

Afe

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

SKU: AFE49-44123-B

Exhaust Systems

AFE Exhaust Cat Back

LOW STOCK! Est Ship 3-5 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.

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Description

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.

Product Overview

Features and Benefits

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

Product Details

Description:	Apollo GT Series 4 IN 409 Stainless Steel Cat-Back Exhaust System w/ Black Tip
Exhaust Type:	Cat-Back
Exit Location:	Passenger side
Part Number:	afe49-44123-B
Sound Level:	Moderate
System Material:	409 Stainless Steel
Tip Cut:	Slant
Tip Finish:	Black Powdercoated
Tip Included:	Yes
Tip Material:	409 stainless steel
Tip Outlet Size:	5
Tip Quantity:	Single
Tubing Diameter:	4
WARNING CA Proposition 65 Message:	WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
WARNING CA Proposition 65:	Yes

Application Summary

GM 2500/3500HD 20-24 V8-6.6L L8T

Part Type

Available to Order

Data: v4.2 - Upd: 2026-10-11 02:55:00

Features

100% MIG-Welded for 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

Specifications

Product Attributes - UPC: 802959603659
Product Attributes - Brand: AFE Power
Product Attributes - Tip Cut: Straight intercooled
Product Attributes - Quantity: Sold as a kit.
Product Attributes - Part Type: Exhaust Systems
Product Attributes - Tip Shape: Round
Product Attributes - Tip Finish: Black
Product Attributes - Exhaust Type: Single
Product Attributes - Product Line: aFe Apollo GT Exhaust Systems
Product Attributes - System Style: Cat-back
Product Attributes - Tip Included: Yes
Product Attributes - Tip Material: 409 stainless steel
Product Attributes - Tip Quantity: 1
Product Attributes - Exit Location: Passenger side
Product Attributes - Muffler Style: Perforated tube with packing
Product Attributes - System Finish: Natural
Product Attributes - Inlet Quantity: 1
Product Attributes - Muffler Finish: Natural
Product Attributes - Tip Edge Style: Rolled edge, single-wall
Product Attributes - System Material: 409 stainless steel
Product Attributes - Muffler Included: Yes
Product Attributes - Muffler Material: 409 stainless steel
Product Attributes - Muffler Quantity: One
Product Attributes - Hardware Included: Yes
Product Attributes - Special Attention: It is illegal to install parts or components that bypass, defeat, or render inoperative the manufacturers’ technology and design necessary to reduce vehicle emissions to meet state and federal Clean Air Act standards.
Product Attributes - Muffler Configuration: Single inlet/Single outlet
Product Attributes - Tip Outlet Size (in.): 5.00
Product Attributes - Tailpipe Diameter (in.): 4.00 in.
Product Attributes - Manufacturer's Part Number: 49-44123-B
Product Attributes - Catalytic Converter(s) Included: No
Product Attributes - Intermediate Pipe Diameter (in.): 4.00 in.

Reference Information

Brand Name/s	Afe
StreetFX SKU	afe49-44123-B
SFX Item ID	4373760
Supplier Item Code	4373760
Manufacturer SKU	49-44123-B
Manufacturer UPC	802959603659
Alternative References	4in, 409SS, 2500/3500HD, V8-6.6L, L8T