AFE Large Bore 4" HD Diesel Exhausts

Description

AFE Large Bore Diesel Truck Exhaust Systems are designed to replace the original equipment unit on your Diesel Truck. The AFE Large Bore 4 inch HD Diesel Exhaust System adds up to 5 horsepower, increases torque and flow, improves your fuel economy, no welding required, 4" mandrel bent tubing, smooth bends, and adjustable hangers. Choose from aluminized steel in turbo back, cat back or tom kit. AFE diesel exhausts are a natural extension of AFE's efforts to enhance the science of airflow management in performance vehicles. This is especially true in the diesel motor, which is simply a huge air pump. Since diesel engines are a compression ignition engine and modern diesel-powered vehicles are turbocharged, the more air you pump in, the more power you generate. However, which turbocharged diesel, it is very important to get the hot truck exhaust out or the Exhaust Gas Temperature (EGT) rise to critical level that could damage the turbo itself. Most OE manufacturers offer a restrictive 3 1/2" exhaust system that is fine for normal every day city or highway driving. But you bought a diesel truck for its towing or work capabilities, didn't you? If so, you want more power to go up that grade towing your boat, trailer or tools. Getting the air in will give you more power. Getting the air out will give you more power. When you get more air in and out at the same time, you get a lot more power. With the 4" exhaust systems are mandrel bent aluminized steel, which eliminates the sharp bends and kinks that the factory stock exhaust systems have. The aluminized steel resists corrosion as well as stainless steel but is priced more economically. Our large 8" diameter straight flow through mufflers do a good job of letting the air out as well. You do have the option of turning the muffler around for better flow or quieter ride. The 5" diameter Exhaust tips finishes up the entire system for a nice throaty sound and appearance enhancement. aFe entire systems comes with adjustable clamps, muffler and sectional tubing for easy installation whether you have a standard, extended or crew cab vehicle. (Exhaust tips sold separately). The truck exhaust kits include Turbo-Back, Cat-Back or Tom-Kit with Muffler Delete Pipe (as specified), All Hardware & brackets needed for OEM installation and installation instructions.

Features

• Large Bore Diesel Exhaust: Adds Up To 5 Horsepower, Increases Torque And Flow, Improves Fuel Economy, No Welding Required, 4" Mandrel Bent Tubing, Smooth Bends, Adjustable Hangers.
• Aluminized Steel Construction: Choose from Aluminized Steel in Turbo Back, Cat Back or Tom Kit.
• The 5" diameter Exhaust tips finishes up the entire system for a nice throaty sound and appearance enhancement. (Exhaust tips sold separately)
• 8" Diameter Straight Flow Mufflers:  Our large 8" diameter straight flow through mufflers does a good job of letting the air out.
• Comes Ready To Install: All Hardware & brackets needed for OEM installation and installation instructions are included.
• Some Models Off-Road Use Only: All Turbo-Back Exhaust Systems are for OFF ROAD USE ONLY unless there are catalytic converter modifications to retain such parts for emission. 

Order Notes

• All Turbo-Back Exhaust Systems are for OFF ROAD USE ONLY unless there are catalytic converter modifications to retain such parts for emission.
• 03-06 Ford F250+ have a Downpipe with a diameter of 3 1/2"

AFE Large Bore 4" HD Diesel Exhausts Specifications

• The Turbo-Back is where the exhaust comes off of the Turbo and goes all the way back.
• The Cat-Back is where the exhaust comes off of the catalytic converter and goes all the way back.
• The Muffler Delete System is where you replace your muffler with a straight 4" pipe.
  Material: Aluminized
  Muffler: 7 inch aluminized
  Hangers: Welded-on
  Hanger Design: Bayonet-OE Style
  Clamps: U-Bolt
  Tail-Pipe: 2-Piece
  Tip Not Included 

AFE Large Bore 4" HD Diesel Exhausts Installation

AFE Large Bore 4" HD Diesel Exhausts Feature Images

	4" Exhaust Systems: The 4" exhaust systems are mandrel bent aluminized steel which eliminates the sharp bends and kinks that the factory stock exhaust systems have.
	4" In/Out Diameter: Dimensions: 4" In/Out, 30" Length x 8" Diameter
	AFE 4" HD Diesel Exhaust System: All Hardware & brackets needed for OEM installation and installation instructions are included.
	aFe Stainless Steel Exhaust Tip: The 5" diameter exhaust tip finishes the entire aFe performance diesel exhaust system for a nice throaty sound and appearance enhancement. (Sold Seperately form exhaust kit.)
	Aluminized Steel: aFe mufflers are available in aluminized steel.
	Better Flow: Plus the design allows for you to have the option of turning the muffler around for better flow or quieter ride.
	Cat-Back Exhaust: This exhuast comes from the Catalytic Converter all the way back
	Cat-Back fits 03-04 Dodge Trucks: 409 Stainless Steel fits all 03-04 Dodge Trucks with the 5.9L Diesal.
	Cat-Back for 03-06 Ford F250+: Aluminized Steel fits all 03-06 Ford Trucks with the 6.0L Turbo Diesal
	Cat-Back for 03-06 Fords: Fits all 03-06 Ford F250+ with the 6.0 Turbo Diesal
	Down Pipe only: The aluminized steel resists corrosion as well as stainless steel but is priced more economically.
	Tom Kit for 03-04 Dodge Ram: Muffler and down pipe fits 03-04 Dodge trucks with 5.9L Diesel Engines
	Turbo-Back Exhaust: This exhuast comes form the Turbo all the way back.
	Turbo-Back fits 03-04 Dodge Rams: Fits all 03-04 Dodge Trucks with the 5.9L Diesel Engine.
	Turbo-Back for 03-04 Dodge Rams: Fits all 03-04 Dodges with the 5.9L Diesel engines
	Turbo-Back for 94-02 Dodge Rams: Fits all 94-02 Dodge Trucks with a 5.9L Diesel.
	Turbo-Back for 94-97 Ford Trucks: Fits all 94-97 Ford F250+ with the 7.3L Diesel engines.
	Turbo-Back for 99-03 Fords: Fits all 99-03 Ford F250+ with the 7.3L Turbo Diesel
	Turbo-Back for all 01-06 GM Trucks: Fits all 01-06 GM Trucks with the 6.6L Duramax Diesel
	Turbo-Back for Dodge Rams: Aluminized Steel fits all 94-02 with the 5.9L Diesel engines.
	Turbo-Back for GM Trucks: Aluminized Steel fits all 01-06 GM Trucks with the Duramax 6.6L with LLY Engine