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Description
Pacemaker | Tri-Y Big Block Exhaust Headers | Ford Falcon XA–XF 460 V8 Engine Swap | PH4099 L/RPacemaker Tri Y Big Block Exhaust Headers Ford Falcon XA XF 460 V8 Swap PH 4099 L R Unleash the massive torque potential of your Big Block Ford with these high performance Pacemaker Tri Y exhaust headers. Specifically engineered for the Ford 460 V8 engine swap into Falcon XA through XF models, these headers utilize a Tri Y design to maximize exhaust scavenging and low to mid range power. Built for serious builds, these headers provide the clearance
Pacemaker Tri-Y Big Block Exhaust Headers - Ford Falcon XA-XF 460 V8 Swap - PH 4099 L/R
Unleash the massive torque potential of your Big Block Ford with these high-performance Pacemaker Tri-Y exhaust headers. Specifically engineered for the Ford 460 V8 engine swap into Falcon XA through XF models, these headers utilize a Tri-Y design to maximize exhaust scavenging and low-to-mid range power. Built for serious builds, these headers provide the clearance and flow required for a professional big block installation.
Features:
This product offers the following high-performance features:
- Tri-Y Header Design: Optimized to deliver a significant boost in torque, ideal for heavy-duty big block performance.
- High-Flow Construction: Massive 2" (51mm) primary pipes leading into 2¼" (57mm) secondaries for unrestricted exhaust flow.
- Precision Engineering: Designed specifically for the XA-XF chassis to accommodate the substantial footprint of the 460 Big Block.
- Durable Finish: Manufactured with high-quality materials to withstand the extreme heat generated by high-displacement V8 engines.
Product Specifications for PH 4099 L/R
| Feature | Value | Feature | Value |
|---|---|---|---|
| Part # | PH 4099 | Gasket | DSF 79 |
| P/Steering | No | Primary Pipe | 2" (51mm) |
| Air Con | N/A | Secondary Pipe | 2¼" (57mm) |
| Oxy Sen | N/A | Outlet | 2¼" (57mm) |
| E.G.R | N/A | Design | Tri-Y Design |
Important Notes:
- Required Hardware: Must be used in conjunction with PACEMAKER engine mounting plates (Part Number: PEMP 460).
- Transmission: Compatible with Automatic transmissions only.
- Fitment Warnings: These headers will NOT fit XP, XR, XT, XY, or XG models.
- Does NOT fit vehicles equipped with Power Steering.
Important Information
- The image shown may not reflect the actual product
- Shipping times may vary depending on destination and stock availability
Vehicle Applications:
Vehicle Applications for PH 4099
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| FORD | ||||||||
| Ford | Falcon | 1972 | 1993 | Sedan / Ute / Wagon | XA-XB-XC-XD-XE-XF | 460 Big Block V8 | Automatic Only | RWD |
Warranty Information
| Product | Warranty Period |
|---|---|
| Pacemaker Headers | Two (2) years. |
| Pacemaker King Brown 4x4 Exhaust systems | Five (5) years. |
| Pacemaker Sports exhaust systems | Five (5) years. |
| Fabrication products and accessories | One (1) year. |
Payment & Security:
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
UA finally got the Tall size right!
Size: Small Tall, Color: (001) Black / / White
I'm 5'7" and 130 pounds. This is second time I've bought joggers from UA, size Small Tall, and OMG I couldn't be happier! UA FINALLY(!) got the Tall size right with these...the first pair I ordered about two years ago were supposedly Tall but shrunk up as soon as I washed and dried them. I like them to hit my ankles and not everyone is 5'4". Flattering fit - these sit at my belly button (not too low not too high) and are fitted not bulky. Material is heavier weight, well made, deep pockets, and perfect for Fall & Winter. After washing and drying with no shrinkage, I ordered another pair while still on sale.
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Reviewed in the United States on February 11, 2026
★★★★★ 5
good quality
Size: X-Small, Color: Black (001)/White
keeps me warm during the cold months when i play golf. tight enough to move around in but not tight at all around the neck. overall a really great product. has kept up for the last 4 years very well
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Fit and Length
Size: X-Large, Color: (401) Royal / / White
Yeah this fits perfectly. Very soft, the color pops, keeps you warm. I use these under my sweatshirts, cable sweaters, and my flannel shirts. For me it's about the arm length and how well the item contours to the body to help with warmth. Thank you for getting this right.
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Reviewed in the United States on February 23, 2026
★★★★★ 5
Worth it.
Size: Small, Color: Black (001)/White
Living in North Dakota, staying warm is invaluable. UnderArmour Cold Gear is the only base layer the provides warmth, KEEPS warmth, and protects from the unforgiving wind. Every winter I go on the hunt for thermals, layering options and I always find others to be saggy or incredibly tight, either way, once I begin shoveling or snowblowering, and sweating, other products become soaked, sticking to skin, unbreathable and quickly your sweat stuck to your body under layers in now creating a cold,chill, freeze to your body, and on a -10F day, it can become a dangerous situation.
I honestly was hesitant to purchase UnderArmour, I felt it was too hyped up or paying for a name. BUT IT IS NOT. UnderArmour isn't a name, it is a company that has made the highest quality base layer, warmth, breathable and it really wicks sweat away; I may not know how it does it, but it works!
For sizing, I ordered a small in the women's longsleeve/turtleneck black coldgear. I'm 5ft and roughly 110lbs. I like the fit, it is meant to fit your body. I probably could wear an extra small, but I like the sleeve length in the small and it fits very well.
Stay warm folks!
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Reviewed in the United States on December 6, 2023
★★★★★ 5
Great cold gear
Size: Large, Color: White (100)/Black
Warm, very comfortable. I wear these all winter. The neck can be a little tight and the cut is definitely fitting. Its got thin like fleece on the inside that keeps you warm.
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Reviewed in the United States on November 3, 2025