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FlowTech Exhaust 12120FLT Tri-Y Headers Primary Tubes - Performance Header Kit

(Ford Mustang 1965-70, F-250 1969-70, Bronco 1966-70, Galaxie 500 1965-70, F-100 1969-70, F-250 Pickup 1969-70, Fairlane 1965-70 + 30 more models)

Manufacturer

Part Number

12120FLT
Sale Price

$389.95

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The FlowTech Exhaust 12120FLT Tri-Y Headers deliver enhanced exhaust flow and improved engine performance through advanced header design. These performance headers feature a tri-y configuration that optimizes exhaust scavenging and improves throttle response across a broad RPM range.

Key Features:

  • 1-1/2" diameter primary tubes and 1-3/4" diameter secondary tubes maximize exhaust flow and performance
  • 2-1/2" collector outlet provides optimal strength and exhaust flow capacity
  • Heavy-duty 16-gauge steel tubing construction for superior strength and durability
  • Mandrel-bent tubes maintain consistent diameter throughout for smooth flow and improved cylinder scavenging
  • 3/8" thick header flange ensures leak-free seal and maximum mounting strength
  • Premium aluminum header gaskets included for proper installation
  • Available in high-heat resistant black paint or polished finish options

FlowTech's tri-y header design combines pairs of primary tubes before joining into the collector, creating optimized exhaust pulses that enhance engine breathing and increase horsepower. The precision mandrel-bent construction eliminates flow restrictions while the thick flanges and quality gaskets ensure a proper seal against exhaust leaks.

Products specifications

Fits

Ford Mustang 1965-70, F-250 1969-70, Bronco 1966-70, Galaxie 500 1965-70, F-100 1969-70, F-250 Pickup 1969-70, Fairlane 1965-70, Ranchero 1965-70, Torino 1968-70, Falcon 1965-70, Galaxie 1965-67, LTD 1965-70, F100 Pickup 1969-70 + 24 more models

Bolt Size

3/8-16 x 3/4

Brand

Flowtech Exhaust

CARB (California) Compliant

No

Category

Exhaust

Collector Attachment

3-bolt flange

Color

Silver

Design

Tri-Y

EGT Port

No

Emission Code

4

Engine

Ford Small Block

Finish

Polished

FLANGE Thickness

3/8"

Gasket Or Seal Included

Yes

Grade Type

Performance

Header Finish

Polished

Header Style

Tri-Y

Material

Mild Steel

Mounting Hardware Included

Yes

Oxygen Sensor Port

No

Part Type

Exhaust Header

Port Shape

Rectangular

Primary Tube Dia.

1-1/2 inch

Product Type

Headers

Sheen Level

Semi-Gloss

Sub Category

Exhaust Manifolds

Warning

California Proposition 65

The price was the best we could find and the delivery was fast.

Excellent Customer Service

Great

Simple and quick

Quick service

Great product and fast shipping!

I love shoppung and finding great deals

Easy to navigate.

fast

Very easy and quick ordering process, so far so good. Completely satisfied with the product and the speed of shipment. Would gladly do business again with Autoplicity.

Best pricing I found for the K&N filter I needed and the order process was quick and easy. Shipping time is reasonable and I have absolutely no complaints.

Website was super easy. Shipping remains to be seen.

easy to order and pay

After weeks of shopping around, I was able to find the best price from Autoplicity. The ordering process was very simple since I had the option to pay through my Amazon account. Great experience.

great easy an quick

Best price for Rancho Shocks anywhere on the net! Ordered by phone and CSR gave me a better deal on shipping then the automated on site calculator.

great gui, accepts paypal

The whole process was some and quick. They also had the lowest prices available. Will be using them more often for sure!!

easy website to navigate though.

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