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Vehicle compatibility

This header is for a 5.7L V8 (345 cu. in.) 2WD only. Make sure the product fits.

Can exhaust headers replace manifolds?

Headers can effectively replace traditional exhaust manifolds in an engine's exhaust system, offering several performance advantages. Unlike exhaust manifolds, which are designed as single pieces, headers have separate pipes for each cylinder. This design improves exhaust flow and reduces backpressure, increasing horsepower and torque.

Advantages of DynoVox Headers:

Improved Exhaust Flow: Each cylinder has its separate pipe in the exhaust headers, allowing for smoother and more efficient exhaust flow. This reduces back pressure on the engine, enhancing overall performance.
Increased Horsepower and Torque: With reduced backpressure, the engine can "breathe" better, leading to increased horsepower and torque output, especially at higher RPMs.
Enhanced Sound: Exhaust headers can alter the exhaust note, typically producing a deeper and more aggressive sound compared to stock exhaust manifolds.

Brand DynoVox SKU QMP-HW00225
Body Material High Quality Stainless Steel Color Silver
Weight 13.52kg Comply with Factory Testing Standards Yes
Type Exhaust Header Warranty 3 Year
Collector Diameter (IN) 3 Inch Flange Type 2 Bolt Flange
Head Flange Thickness 7/16" Primary Tube Size 1.75"
Outlet Flange Thickness 3/8" Outlet Size 2.00"
Package Includes Exhaust Header*2 Gaskets*2 1 Pack Screws & Nuts
Installation Location Engine
Item Condition New

Warranty and Shipping Services

We provide a 3-year warranty and a 30-day free return and exchange service, so you have no worries. At the same time, you can enjoy fast and free shipping within the United States.

DISCLAIMER

1. By installing this product onto your vehicle, you assume all risk and liability associated with its use.2. It is your responsibility to make sure your Vehicle complies with all federal, state, and local emissions laws. Federal and many state and local laws prohibit the removal, modification, or rendering inoperative of any part of the design affecting emissions or safety on motor vehicles used on a public street or highway Violation may result in a fine of up to $ 32,500 per vehicle ( or possibly higher depending on changes in the law ). All civil penalties and fines for removing your vehicle emissions equipment are the sole responsibility of the end user.3. Due to its high-performance nature, this product may void the vehicle manufacturer's warranty.4. DynoVox is not responsible for the misuse of its products By installing this product, you release DynoVox of any liability associated with its use.5. Depending on where you live, restrictions may apply. Check all applicable laws before installing or using.6. The purchaser and end-user release, indemnities, discharges, and holds harmless DynoVox from any claims, damages, causes of action, injuries, or expenses resulting from or relating to the use or installation of this product that is in violation of the terms and conditions on this page, the product disclaimer, and/or the product installation instructions. DynoVox will not be liable for any direct, indirect, consequential, exemplary, punitive, statutory, or incidental damages or fines caused by the use.

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Frequently asked questions
How much HP do headers add to a 5.7 Hemi?
With the larger 1 3/4" Hooker BlackHeart headers (p/n 70102303-RHKR), the "cam'd" 5.7L Hemi produced 442 horsepower at 6,100 rpm and 437 lb-ft of torque at 4,500 rpm. This represents a gain of 35 horsepower over the stock manifolds with the larger, long-tube headers.
Which is better, exhaust manifolds or headers?
Headers typically reduce exhaust back pressure, boosting performance at higher revs and resulting in increased noise. On the other hand, exhaust manifolds maintain some back pressure, which ensures drivability across a wider rev range and reduces noise.
Do headers affect exhaust sound?
With exhaust headers, your exhaust notes will be smoother, more defined and far more aggressive.
Is it worth upgrading headers?
Headers can increase horsepower, improve the flow rate of exhaust or improve your car's sound. No matter what you're looking for to enhance your engine system, you can find an exhaust header to suit your needs.
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