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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21
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Description
HPA Motorsports Compression Reduction Kit - VW | Mk4 | Mk5 | R32Enjoy the peace of mind that every HPA built twin turbo owner does and protect yourself against engine knock. For high boost HP applications, HPAs kit reduces your compression to 7: 1, allowing your tuner to optimize ignition maps for varying fuel quality and octane grades. Laser cut and precision ground, our steel head plates ensure perfect fitment. The lengthened timing chain is held under tension with our upgraded piston assembly, where HPA has
Enjoy the peace of mind that every HPA built twin-turbo owner does and protect yourself against engine knock.
For high boost/HP applications, HPA’s kit reduces your compression to 7:1, allowing your tuner to optimize ignition maps for varying fuel quality and octane grades.
Laser cut and precision ground, our steel head plates ensure perfect fitment. The lengthened timing chain is held under tension with our upgraded piston assembly, where HPA has integrated a clean oil source pick up for your turbo or supercharger hardware.
A set of OEM head gaskets together with head bolts provide everything you need to complete your long block build.
Included with the Compression Reduction Kit:
- Steel Head Spacer
- OEM Head Gaskets (2)
- OEM Head Bolts
- Oil Feed Pick Up Fitting / Line
- Tensioner Piston
- Lengthened OEM Timing Chain
Fitment:
- Mk4 / Mk5 R32 - 3.2L VR6
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
4.2 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 4
Easy to send to my 2yr old Grandson
Format: Board book
He loves to snuggle up & point to all the things in the story.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 17, 2024
★★★★★ 5
Thank You Very Much
Format: Board book
Thank You
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 20, 2022
★★★★★ 5
Great Clean Alternative to Traditional Mouthwash, LOVE this!!
Flavor Name: Mint, Size: 3.5 Ounce (Pack of 1)
I’ve been really impressed with these Boka mouthwash tablets. They’re fluoride‑free and alcohol‑free, which is exactly what I was looking for, and the hydroxyapatite is a nice bonus for supporting enamel without the harshness of traditional mouthwashes. The tablets dissolve easily, the flavor is refreshing without being overpowering, and there’s no burning sensation at all. Do NOT chew and swallow like I did the first time. Chew, get salva going and swish. My teeth never felt so clean!!!
I also love that they’re travel‑friendly and cut down on plastic waste compared to big bottles. My breath feels fresh, and my mouth feels clean without that chemical aftertaste. If you’re trying to switch to a cleaner, gentler oral‑care routine, these are a great option.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
★★★★★ 5
Tasty, effective, and helpful against thrush
Flavor Name: Citrus Mint, Size: 3.5 Ounce (Pack of 1)
This is a good plastic-free, portable form of mouthwash. Pop one or two tablets in your mouth, chew well, add a little water if your mouth is particularly dry (mine is), swish, and spit. That's it. They don't burn like regular mouthwash, and they leave a nice flavor that isn't overpowering and that lasts longer than other mouthwashes have for me. It's a balanced flavor, if that means anything to you - basically, my mouth somehow feels right afterwards.
I was skeptical about the claim that these improve the mouth microbiome, but they've virtually eliminated the thick white layer (presumably thrush) that I've been fighting to clear off my tongue forever. So, yeah, these are definitely a winner.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 24, 2025
★★★★★ 4
More like a mint candy than mouthwash.
Flavor Name: Mint, Size: 3.5 Ounce (Pack of 1)
Hard to describe this product. Does it work like your typical mouthwash? No. Does it leave your mouth feeling minty and fresh? Yes, to a certain extent. Would I consider this an alternative to mouthwash on a consistent basis? No, it's ok for traveling because it's easy to transport.
When you chew this tablet, it has the texture and feel of a traditional mint. It's chalky and breaks up easily.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
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