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- USA
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Ships within 48 hours · Estimated delivery Sep 23 - Sep 28
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Apr Valve Spring Kit (1 Set)-MS100258The APR Valve Spring System is a high performance, lightweight upgrade designed to increase valve control and eradicate valve float common on many applications. APR's design specifications called for a valve spring, retainer and spring seat combination that doesn't overpower and snap the OEM valves or erode the aluminum spring seat, while still maintaining exceptional valve control. The result is an advanced design that's 28% lighter yet 20% stiffer
The APR Valve Spring System is a high performance, lightweight upgrade designed to increase valve control and eradicate valve float common on many applications. APR's design specifications called for a valve spring, retainer and spring seat combination that doesn't overpower and snap the OEM valves or erode the aluminum spring seat, while still maintaining exceptional valve control. The result is an advanced design that's 28% lighter yet 20% stiffer than the high performance OEM EA113.K04 (MK6 R) setup and is proven to eliminate the OEM valve train's weakest link. We call it Performance Without Compromise!
Features:
- Increase valvetrain control
- 71% weight reduction over 2.0T EA113.K04 retainers (MK6 R)
- 19% weight reduction over 2.0T EA113.K04 springs (MK6 R)
- 20% stiffness increase over 2.0T EA113.K04 Springs (MK6 R)
- Eradicates valve float issues (MK6 EA888.1)
- Supports higher revving application
- Weight saving beehive spring design
- ASTM A877A OTSC round wire steel springs
- 6AL4V American titanium retainers
- 4140 heat-treated chrome molly steel spring seats with black oxide coating
- 29 grams per spring
- 2 grams per retainer
- Compatible with OEM valves
- Spring seats included to protects against aluminum erosion in the head
- Plug and Play
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 6 reviews
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Product Reviews
★★★★★ 5
actually durable
Size: 6 in, Color: Blue
my puppy shreds every "indestructible" toy I give to her instantly. she's had one for months and it is only missing a corner of it, so I bought a spare. it also smells like food. she loves it.
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Reviewed in the United States on July 4, 2025
★★★★★ 5
Tough for aggressive chewers
Size: 6 in, Color: Blue
Very sturdy
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Reviewed in the United States on October 31, 2025
★★★★★ 5
Best Balls Ever!!!
Size: Medium
These are the best balls ever! We have 2 very active ball loving dogs and these bounce very well and they actually hold up with active play and chewing. They still look brand new after daily use for months!
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Finally a ball my power chewers cannot destroy
Size: Medium
I have two dogs, an American Bully and an American Pit Bull Terrier, and both of them love to chew. Most balls last a very short time around here before they are shredded or missing big chunks. This one has actually held up. They chase it, tug on it and sit and chew on it, and it is still in one piece with no pieces breaking off.
One of my favorite things is being able to put food inside. I add some kibble or small snacks, and they will happily sit and work on it for a long time. It keeps them busy, gives them something safe to chew, and they get a little reward while they play. When they are done, I just rinse it out and it is ready to go again.
If you have strong jawed dogs that usually destroy toys, this ball is worth trying. Mine really enjoy it and I feel better knowing they finally have a ball that can keep up with them.
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Reviewed in the United States on November 22, 2025
★★★★★ 5
My dog LOVES this ball
Size: Medium, Size: Medium
Does your dog destroy tennis balls in seconds?
Yes? Then your dog NEEDS this ball!
It's squishy like a tennis ball, fits in ball launchers (even the cheap ones) and bounces when it hits the ground.
My dog has been literally playing with this ball all day and not a single mark on it!
The only bad thing is that it does not float.
Definitely worth the money!
Put it in your cart!
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Reviewed in the United States on March 8, 2026