Can Mods Really Make the A10 Piston SA Feel Better?

Tested: May 2022 · English version: September 24, 2026 · Prices checked: September 24, 2026

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Can Mods Really Make the A10 Piston SA Feel Better?

*Modding the A10 Piston SA comes with real risks. If you try any of this, you do it at your own risk.

I looked into what kinds of mods people are actually doing.

Most of them swap in a different onahole (a Japanese masturbation sleeve) instead of the official one.

There are tons of reviews saying that swapping or modding the sleeve made the A10 Piston SA’s stimulation “dramatically better.”

I couldn’t find anyone who took the A10 Piston SA itself apart to mod it.

Plenty of people say modding the official sleeve, or switching to a different one, made it “feel insanely good,” so if the stock setup no longer does it for you, it’s worth a try.

At first the official sleeve felt plenty good without any mods…

but eventually it started to feel routine, so I tried all sorts of things.

The A10 Piston SA also has official sleeves with more intense stimulation — if you want to know which ones, see here.

Best A10 Piston SA Sleeves: Top 3 and Owner ReviewsWhich VORZE A10 Piston SA sleeve should you buy? The top 3 official sleeves (Steel β, Wind β, Sucker β), the included Clover, prices and how to wash them.Read the article ›

[Must-read] NLS’s No. 1 most popular onahole can pull you out of the rut.

A10 Piston SA × “Mada Namae ga Arimasen”: The Ultimate ComboPutting the Mada Namae ga Arimasen onahole into a VORZE A10 Piston SA: does it fit, how it feels, how to set it up, and what other owners say.Read the article ›

If you haven’t bought an A10 Piston SA yet, read this article first so you end up with a genuine unit.

Where to Buy a Genuine A10 Piston SA for the Lowest PriceWhere to buy a genuine VORZE A10 Piston SA + PLUS in Japan: NLS vs. Amazon Japan vs. FANZA prices, stock history, must-have extras and scams to avoid.Read the article ›

The Risks of Modding the A10 Piston SA

Before anything else, here are the risks of modding the A10 Piston SA.

The A10 Piston SA is designed to stop under heavy load, but a mod could still get you injured.

Some mods also make it much more likely to break.

So my advice is to go in with the attitude of “I’m bored of my A10 Piston SA anyway — I’ll mod it and accept that it might break.”

Depending on the size of the onahole, some are hard to fit in.

I recommend experimenting with onaholes you already own.

When I wrote this in May 2022, the A10 Piston SA had no warranty in the first place, so there was no point worrying that a mod would “void the warranty.”

At that time, the manufacturer did not offer repairs for the A10 Piston SA.

>>> Does the A10 Piston SA have a warranty? What to do when it breaks

[Mod] Cut Off the Plastic Ring at the Opening of the Official A10 Piston SA Sleeve

The opening of the official sleeve has a plastic ring that locks it firmly into the A10 Piston SA.

Pushing the official sleeve, with its white plastic ring, into the A10 Piston SA

The plastic part is attached to the sleeve, not to the machine.

The white plastic ring at the opening of the official A10 Piston SA sleeve

Without it, the piston can move through a longer range.

↓ Normally the white plastic ring is held in place, so the sleeve gets stretched rather than moved, and the stroke on your penis is shorter.

The official sleeve stretched out, showing the long pink body and the white ring

Cut that plastic off, and the sleeve really works your whole penis.

But that plastic is also a safety part, and without it there’s a risk of getting your penis caught in the machine.

Cut the Official A10 Piston SA Sleeve into an Open-Ended One

The official A10 Piston SA sleeve is closed at the end.

That makes it a pain to wash.

I found one daredevil who cut off the bottom of the official sleeve to make it open-ended.

The closed bottom end of the official A10 Piston SA sleeve

Once it’s open at both ends, it’s much easier to wash.

But with an open end, there’s a risk of semen running down into the A10 Piston SA itself.

The official sleeve in its case; fluid would run down toward the machine

The person who did this mod stopped leaks by tucking tissue under the bottom of the case that holds the sleeve.

In other words, the tissue soaks it up before it gets any further.

It’s still very risky, so the safe way to try it is with a condom on at first.

And lube will drip out, too.

The machine isn’t waterproof, so if fluid gets inside, it could break. (VORZE’s own manual says neither the main unit nor the top cap is waterproof — only the sleeve and the inner case can be washed.)

When I wrote this, the A10 Piston SA had no warranty or repair service, so please be careful.

Using RENDS’s own official lotion should also lower the risk of leaks, since it’s quite thick.

[NLS] See VORZE Smooth Lotion

Fitting “Mada Namae ga Arimasen” into the A10 Piston SA

Any damage is at your own risk.

Mada Namae ga Arimasen fitted into the A10 Piston SA, moving in and out

Isn’t this insane?

Look at that stroke, lol.

It isn’t recommended for the A10 Piston SA, but some people fit a different onahole into it and enjoy it that way.

Since it’s not an official sleeve, it doesn’t have the six holes that lock it in place.

Only friction keeps it from moving, so thin onaholes won’t work.

That’s why the best move is to buy an onahole that people before you have actually used and reviewed.

Lots of reviewers say “Mada Namae ga Arimasen” (literally “No Name Yet”) fits and that they’re happy with it.

It doesn’t look pretty, but the value for money is insane… lol

That’s NLS for you.

When I wrote this in May 2022, it cost about the same as an official A10 Piston SA sleeve — roughly ¥2,500. (As of September 2026, the current official sleeves, the 2.0 series, are ¥2,970 (about US$19) at NLS.)

>>> See Mada Namae ga Arimasen

[Perfect Fit] Modding It with the Shuriken Soft Onahole

Kunoichi Inpo Shoku-Shuriken Nettori Soft onahole and its box

One review said this “Shuriken Soft” onahole was a huge hit.

Apparently it’s a perfect fit and doesn’t slip out of place.

On the low-speed mode, it reportedly feels like a blowjob.

Its signature ridges really work you over.

Just imagining those ridges is too much…

Honestly, if people watch VR videos with this, nobody’s going to buy the official A10 Piston SA sleeves anymore…

>>> See Kunoichi Inpo Shoku-Shuriken Nettori Soft at NLS

What People Say About “A10 Piston SA Mods” on X (Twitter)

When I searched in May 2022, I couldn’t find any posts on X from people who had modded theirs.

Summary

If you buy an onahole that doesn’t fit the A10 Piston SA, you end up cutting it yourself and dealing with other hassles.

Learn from the people who modded theirs before you, and enjoy your A10 Piston SA life.

If it doesn’t feel intense enough, maybe you’re not syncing the A10 Piston SA with a VR headset yet?

Once you sync it with adult videos, it feels 1,050 times better — if you haven’t tried it, you’re missing out big time…

If you haven’t bought an A10 Piston SA yet, read this article first so you end up with a genuine unit.