Ultimate Headers 321 Stainless Steel Headers 475031

$1,437.00

Headers, Long Tube, 321 Stainless Steel, Catalytic Converters, Cast Stainless Steel Flange, Tight Radius Cast Elbows, Ford, Mustang, S550, 5.0L, Kit

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Overview

Brand: Ultimate Headers
Manufacturer’s Part Number: 475031
Part Type: Headers
Product Line: Ultimate Headers 321 Stainless Steel Headers
Summit Racing Part Number: JBC-475031
Header Style: Long tube one-piece
Header Material: 321 stainless steel
Primary Tube Outside Diameter (in.): 1 7/8 in.
Header Color: Natural
Flange Style: Standard
Weld-Up: No
Cylinder Head Port Shape: SAP
Collector Attachment: Slip fit
Collector Diameter (in.): 3.00
Collector Reducers Included: No
Tuned: Yes
Primary Tube Gauge: 18-gauge
Flange Thickness (in.): 0.38 in.
Bolts/Studs Included: Yes
Gaskets Included: Yes
Crossover Pipe Included: No
Catalytic Converter(s) Included: Yes
Catalytic Converter Quantity: 2
Motor Mounts Included: No
Transmission Mount Included: No
Quantity: Sold as a pair.

Ultimate Headers 321 Stainless Steel Headers

Ultimate Headers 321 Stainless Steel Headers integrate a cutting-edge, patented design, created specifically for maximum performance and minimal weight, with 3D-engineered flanges, and superior 321 stainless steel to deliver a unique combination of elegance and horsepower. Born in World War II for aircraft engine exhaust manifolds by adding titanium to basic nickel/chromium alloy steel, 321 stainless provides reduced weight, plus increased resistance to material fatigue and thermal cracking in high-heat environments.

Finite Element Analysis (FEA) processes are used to create Ultimate Headers and the unique Ultimate Flanges with their signature, high-tech, ribbed reinforcements that reduce weight, improve flange cooling, and lessen heat-induced warpage; while providing the required clamping forces to eliminate leakage. Ultimate 321 Stainless Steel Headers’ tight radius, investment-cast, 316L stainless steel elbows immediately turn the header tubes away from the exhaust ports with a radius smaller than the tube diameter (which can’t be done using a tube bender); holding the header tubes close to the block—perfect for engine swaps. Investment casting also maintains the desired wall thickness and avoids the thinner sidewall created by tube bending at the point where exhaust gas temperature and volume are at their highest.

These benefits, combined with the advanced Cometic MLS (multi-layer stainless steel) header gaskets included with each set of headers, give Ultimate Headers 321 Stainless Steel Headers the leading edge when it comes to adding a total performance-enhancing exhaust system.

Features include:

* Patented design
* Includes premium corrosion and heat-resistant ARP 12-point, 300 grade stainless steel bolts and washers
* Jig fixture, TIG-welded for precise quality control
* Easy to install
* Header tubes are mounted high and tight for a compact, space efficient package away from steering shafts and frame rails
* Eye-catching flanges add dramatic improvement to the engine compartment
* Available styles include rear-dump and block-hugger designs
* Available in a variety of finishes, including mill, satin, mirror polish, ceramic coated silver, and ceramic coated black
*Ultimate Headers Cast Header Flanges or Extreme Low-Profile Clamps (both sold separately) are recommended for the end of the collectors

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