Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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Description
Aftermarket Assassins 2022-Up RZR Pro R 4 Cylinder Header Pipe **5-10 Day Lead Time**Looking for a header to complete the look and performance of your AA slip on exhaust? Then you need the AA stainless steel Pro R header! The OEM header is an odd 2 into 2 into 1 design and has many areas to improve upon. We set out to make a functional header that looks great. Nearly 6RWHP peak and over 4 RWHP max gain over the stock header when used with AA ECU flash and AA slip on exhaust. This is nearly 8 9 crank horsepower gains at 60mph and does
- Looking for a header to complete the look and performance of your AA slip-on exhaust? Then you need the AA stainless steel Pro R header! The OEM header is an odd 2 into 2 into 1 design and has many areas to improve upon. We set out to make a functional header that looks great.
- Nearly 6RWHP peak and over 4 RWHP max gain over the stock header when used with AA ECU flash and AA slip-on exhaust. This is nearly 8-9 crank horsepower gains at 60mph and does not lose any bottom end power.
- Excellent low end to top end performance
- Works great with our level 2 tune, clutch kit & other performance products
- Baseline(OEM header) was tested, then we quickly swapped our final header design in place to show the most consistent/real gains in the same hour of each other.
- Engineered to have equal length runners into the collector
- Matches our slip-on exhaust perfectly
- Stainless steel stepped header design for improved flow and longevity
- Hydroblasted finish with rust inhibitor looks great and turns bronze with heat
- Does not use factory heat shielding and should only be used with a slip-on exhaust with no catalytic converter
- Made in-house at our facility in the USA
- Extremely easy installation, bolts in like factory using OEM gaskets/mounting
Free Shipping to the Lower 48
- Header includes a new gasket where it meets the cylinder head
- Why the AA header over others? We design, build, and ship everything in house. Our header design has straight runners and goes around the frame rail like OEM which simply makes power. Other headers may look great and run inside the rail, but they will not perform well because of the sharp bends off the head.
jds 1/27/23
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
4.3 ★★★★★
Based on 180 reviews
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Product Reviews
★★★★★ 5
Great for chewers!
Size: Large, Color: Ball-Blue
We have a super high energy one year old pup who destroys practically every toy she gets. This one is excellent! It makes a fun but not annoying sound and she hasn’t been able to destroy it yet. The test hole is a fun addition to keep her busy.
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Reviewed in the United States on November 16, 2025
★★★★★ 5
Very sturdy toy for aggressive chewers
Size: Large, Color: Bone-Blue
My 80-pound American Bully loves this toy. It is very sturdy. Good price. Highly recommend.
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Reviewed in the United States on April 24, 2026
★★★★★ 1
My Dog Loved It—Until It Stopped Working
Size: Large, Color: Ball-Red
I purchased this treat-dispensing dog toy for my German Shepherd, and for the first couple of days it worked exactly as advertised. When rolled or tossed, it made an engaging sound that immediately caught my dog’s attention and encouraged him to interact with the toy to get the treats out. He absolutely loved it.
Unfortunately, after only a few days, the sound feature stopped working. Then it mysteriously started working again for a short period, so I thought the issue had resolved itself. However, it has now stopped completely. No matter how much I shake, roll, or toss the toy, it no longer makes any sound.
I went out of town and didn’t realize the return window had passed while I was gone. By the time I returned, the return deadline had already expired, which was disappointing because I would have returned it when the problem first appeared.
Based on my experience, I cannot recommend purchasing this toy. While many of the reviews seem positive, perhaps I received a defective unit. It’s disappointing that it stopped functioning properly after barely a month of use.
That said, my dog genuinely enjoyed it when it was working, and I would appreciate it if the manufacturer would stand behind their product and offer a replacement as a courtesy. I would be happy to return the defective toy. If a replacement performed as intended, I would gladly reconsider my opinion.
For now, however, I am very disappointed with the functionality and reliability of this product.
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Reviewed in the United States on June 5, 2026
★★★★★ 5
Tough
Size: Large, Color: Bone-Blue
Somewhat large and a bit heavy. Best for a large dog. Very tough and durable.
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Durable for big dogs
Size: Large, Color: Ball-Red
It has a squeaky inside very tough doors loved it.
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Reviewed in the United States on May 24, 2026
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