SKU: 7847143812

aFe MACH Force-Xp 3-1/2in 409 Stainless Steel Cat-Back Exhaust System w/Polished Tip (49-43037-P)

Sale price$389.46 Regular price$432.73
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Description

aFe MACH Force-Xp 3-1/2in 409 Stainless Steel Cat-Back Exhaust System w/Polished Tip (49-43037-P)Mach Force XP 409 SS Cat Back Exhaust System with Single Side Exit (49 43037 P) by aFe. Exhaust System Type: Cat Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 3. 5". Exhaust System Sound: Aggressive Loud. Get increased exhaust flow, more horsepower and torque, improved performance and lower exhaust gas temperatures with the aFe Mach Force XP Cat Back Exhaust System. aFe dyno tests every system for maximum gains, and constructs them from

Mach Force XP 409 SS Cat-Back Exhaust System with Single Side Exit (49-43037-P) by aFe. Exhaust System Type: Cat-Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 3.5". Exhaust System Sound: Aggressive / Loud. Get increased exhaust flow, more horsepower and torque, improved performance and lower exhaust gas temperatures with the aFe Mach Force XP Cat-Back Exhaust System. aFe dyno tests every system for maximum gains, and constructs them from mandrel-bent stainless steel for maximum flow and long-lasting durability. This system begins at the Cat (Catalytic Converter).

A performance exhaust system is one of the most common ways of improving a vehicle's operation. The theory is simple; just reduce restriction to increase exhaust flow and you gain power. But all exhaust systems are not created equal; in reality there's more to it than just selling some sewer pipe sized tubes.

aFe tests its systems on the flow bench and the dynamometer to determine the right pipe size and muffler construction. Then they mandrel bend the pipes to ensure they maintain their shape and size throughout the entire length, to provide smooth, unrestricted airflow. Tubes that are not mandrel bent can lose up to 20% of their diameter in sharp bends. Some systems also include a straight muffler delete pipe if a more aggressive sound and maximum flow is desired. A typical aFe system will increase exhaust flow by up to 29% and lower EGT (Exhaust Gas Temperature) by up to 100 , with a corresponding improvement in power and performance.

But performance is only part of the equation. A quality exhaust system should be easy to install and made to last. The muffler and all pipes of the Mach Force XP system are constructed from durable 409 stainless steel. To ensure a tight seal, slotted and swedged ends are used whenever possible. When used with the supplied premium quality band clamps, the tightest, leak-free seal is the result. Every hanger is thoroughly welded on each side to ensure a strong attachment and the hangers also feature swaged bayonet ends to lock in place once installed.

aFe (Advanced Flow Engineering, Inc.) manufactures performance products for late model cars, light trucks and SUVs. The company was founded in 1999 with an initial concentration on high performance air filters. Since then, the company product line has broadened to include cold air intakes, fluid filters, exhaust systems, intake manifolds, intercoolers, programmers, differential covers, transmission pans and throttle body spacers. The team of engineers, machinists, production and sales people at aFe have many years of experience in their respective positions, and together work to ensure they produce the best automotive products on the market.

Features:

  • 3.5 in. Mandrel Bend 409 Stainless Steel Tubing
  • 34% Flow Gain
  • Free Flow Muffler
  • OE Style/Welded-On Hangers
  • Polished Stainless Tip Included
  • Hassle-Free Installation
  • 2 Year Limited Warranty
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 7847143812

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Deeanna Cardell
Pawtucket, US
★★★★★ 5
Fit perfectly
Size: 2, Color: Multicolor - Long Sleeve
This was a perfect little shirt to go under a pair of overalls for a Chucky costume.
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Reviewed in the United States on December 3, 2025
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Elissa Galati
Houston, US
★★★★★ 4
Large but great for chucky costume
Size: 2, Color: Multicolor - Long Sleeve
Got this for my sons second birthday (he’s a Halloween baby) and is going to be chucky! It’s huge on him but under overalls it will be fine
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Reviewed in the United States on September 26, 2023
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Hailey
Los Angeles, US
★★★★★ 5
Recommend
Size: 3, Color: Black and White - Short Sleeve, Size: 3, Color: Black and White - Short Sleeve
Fit true to size , and was soft not scratchy material.
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Reviewed in the United States on December 11, 2025
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Hadia
Dallas, US
★★★★★ 5
Would buy again.
Size: 5, Color: Multicolor - Long Sleeve
I used this as an undershirt for a Chucky costume. It was a thick material that was warm enough to support my daughter during a cold trick-or-treat.
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Reviewed in the United States on October 31, 2025
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Kathleen A. Doering
Belleville, US
★★★★★ 5
Great Coat!
Size: XX-Large, Color: Blue Gray
Great Quality. It’s lightweight and warm. My Husband lived the color and the fit was exactly what he wanted!
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Reviewed in the United States on January 16, 2026

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