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- USA
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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Description
Pacemaker | 5L E.F.I Windsor | Falcon AU XR8 - TE50 - Fairlane | Tri-Y Design | PH4001 L/RPacemaker 5L E. F. I Windsor Falcon AU TE50 XR8 Fairlane PH4001 L R Unlock the power of your AU series V8 with these high performance Pacemaker Tri Y headers. Specifically designed for the 5 Litre E. F. I. Windsor motor, these headers are engineered to maximize low to mid range torque and overall engine responsiveness. Perfect for the Falcon AU, XR8, and TE50 models, as well as Fairlane variants, they provide a significant improvement in exhaust flow
Pacemaker 5L E.F.I Windsor - Falcon AU / TE50 / XR8 / Fairlane - PH4001 L/R
Unlock the power of your AU-series V8 with these high-performance Pacemaker Tri-Y headers. Specifically designed for the 5 Litre E.F.I. Windsor motor, these headers are engineered to maximize low-to-mid range torque and overall engine responsiveness. Perfect for the Falcon AU, XR8, and TE50 models, as well as Fairlane variants, they provide a significant improvement in exhaust flow compared to the restrictive factory manifolds.
Features:
This product offers the following high-performance features:
- Tri-Y Design: Optimized to enhance torque delivery and fuel efficiency by improving exhaust scavenging.
- Direct V8 Fitment: Tailored specifically for the AU-chassis Windsor V8 engine bay for a clean and efficient installation.
- Durable Construction: Built to withstand high temperatures and harsh conditions while maintaining peak performance.
Product Specifications for PH4001 L/R
| Feature | Value | Feature | Value |
|---|---|---|---|
| Part # | PH 4001 | Gasket | DSF 3A |
| P/Steering | Yes | Primary Pipe | 1⅝" (41mm) |
| Air Con | Yes | Secondary Pipe | 1⅞" (48mm) |
| Oxy Sen | Yes | Outlet | 2¼" (57mm) |
| E.G.R | N/A | Design | Tri-Y |
| Fitting Time | 2½ Hrs | Y Branch | N/A |
Important Notes:
- Will not fit E-series models.
- Designed specifically for Windsor 5.0L EFI engines.
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 PH4001 L/R
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| FORD | ||||||||
| FORD | Falcon / XR8 / TE50 / TS50 | 1998 | 2002 | Sedan / Ute / Wagon | AU | 5.0L E.F.I Windsor V8 | Manual & Automatic | RWD |
| FORD | Fairlane / LTD | 1999 | 2002 | Sedan | AU | 5.0L E.F.I Windsor V8 | Automatic | 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
4.5 ★★★★★
Based on 413 reviews
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Product Reviews
★★★★★ 4
Cozy but...
Size: Medium, Color: Light Grey Cotton Twist, Size: Medium, Color: Light Grey Cotton Twist
These slipper socks are nice but could be nicer. The sock portion does Not have a heel; they are tube socks with a footpad sewn on. This means there is a little tightness getting your foot past the turn and then you end up with a roll of sock over your upper foot. Once that is all made comfortable, you are good to go.
I wear mine indoors and out for short trips to the patio and backyard. The sole material looks to be durable enough to last more than one season with this type of use. The footbed itself has just the right amount of padding: not so much that the foot can slid to the side and not so thin you can feel the joints in a tile floor ;-)
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Reviewed in the United States on September 12, 2025
★★★★★ 3
Size down. Thin soles are cold.
Size: Small, Color: Light Grey Ragg Wool
The ragg wool is warm and they seem well made.
The foot sizing is very long. I'm a 7.5 to 8 always. The choice was 6-7 or 8-9. The 8-9 is more than 2 inches too long. I'm afraid they will cause a fall. Also know that the cushioning is not as pictured. It is only half the depth of the leather sides. When you stand on anything but carpets, you feel the cold floor. This is all due to the gravity on earth.
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Reviewed in the United States on December 19, 2025
★★★★★ 5
Best slippers, beware Sizes may be off.
Size: Medium, Color: Charcoal Ragg Wool
I LOVE these sock moccasins shoes or whatever they are.
I purchased 2 pair in different colors and the upper sock material was a significantly different material in its weave density and stretchyness. (blue more thin and stretchy than grey). I wear blue ones indoors, and the grey ones stay in the car for long car trips. Sizing: both pair I bought say 7-9mens 9-10women -- In how they actually fit they are 9-10 mens. The soles are leather with a thin bit of soft foam, in winter I can walk around in snow in them and the cold doesnt get through. Not that you should walk in snow with them since the leather is like a suede so it gets gross. You can put them through the washing machine and it makes them look good as new.
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Reviewed in the United States on January 1, 2021
★★★★★ 1
Is this a joke slipper?
Size: Large, Color: Charcoal Ragg Wool
Bought size large (men’s 9-10) this past year for my husband for Christmas. These are not made to fit a human being unless it is a severely skinny person with very very long feet. The feet are too big for him but the ankles are so narrow he can’t put them on, and my husband is actually very lean, he teaches martial arts for a living 6 days a week. I don’t believe I’ve ever seen a person in my entire life who simultaneously has long enough feet combined with skinny enough legs to fit these slippers. For a laugh we got our skinniest female friend to try them on and she could just barely squeeze her legs into them. I think she described it as “squeezing her skin off of her legs” or something like that, and then of course the feet were comically huge for her because she is so petite. We never got around to returning them and I just found them last night and remembered the whole incident. I tried to fit my forearm inside them but could not fit much past the wrist because they were too tight and I had a good laugh. I think I might cut them up and use the pieces to patch his old slippers that actually fit. To be fair we actually got a lot of laughs out of the product so it wasn’t a total waste. Buy them as a joke or save your money.
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Reviewed in the United States on June 10, 2018
★★★★★ 5
Perfect
Size: Small, Color: Light Grey Ragg Wool
So comfy warm and easy to travel with
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Reviewed in the United States on April 14, 2026