Chevrolet Truck Header D3354-R raw

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Get the most out of your Chevy Truck, fit a set of Doug's Headers, guaranteed to give you more horse power and torque. Fit the best fit Doug's.


Thick flanges (3/8" to 5/8")... no warping

CNC mandrel bent tubes... accurate fit & better flow

Precision formed long transition collectors... reduces backpressure

Heavy gauge tubing (16 & 14G)... longer life

Header tubes are pre-polished... better appearance

Image shown is for the coated option

Every Doug’s header is tuned with the proper tube size and length to efficiently remove all the exhaust from each cylinder, reducing pumping losses resulting in dramatic increases in horsepower and torque. Doug’s headers are carefully developed on the vehicles they are intended to fit and are re-checked numerous times during the design and manufacturing process.

Spec and Important Information

Doug's Part Number: D3354-R

Header Style: Long Tube

Header Material: Steel

Header Finish: Raw

Primary Tube Diameter: 1.75 in. (42mm)

Collector Diameter: 3 in. (76.2mm)

Cylinder Head Port Shape: SAP

Primary Tube Gauge: 16-gauge

Flange Style: Standard

Flange Thickness: 3/8 in. (10mm)

Bolts/Studs Included: Yes

Gaskets Included: Yes

Quantity: Sold as a pair.

Notes: Fits Chevrolet Truck 1500, 2500, 3500, with 4.8L and 6.0L engines 1995 to 2005

111 Long tube headers for off-highway racing use only

182 Aluminized Y pipe PN. D926 bolts to exhaust system. Available separately

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