SKU: 22267706167

SteamSpeed STX 76R Ball Bearing Turbo for BMW N55 Twin Scroll PWG

Sale price$1349.55 Regular price$1499.50
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Description

SteamSpeed STX 76R Ball Bearing Turbo for BMW N55 Twin Scroll PWGnote: these units are made on demand, so allow 2 4 for assembly and shipping. The SteamSpeed STX 76R Ball Bearing Turbo for BMW N55 PWG is a complete turbo upgrade for your BMW featuring a dual ceramic ball bearing cartridge and a custom GTX3076R sized compressor and turbine wheels. This turbo is designed to provide early torque for a more stock like response but with loads more power and power holding throughout the power band instead of falling off

note: these units are made on demand, so allow 2-4 for assembly and shipping.

The SteamSpeed STX 76R Ball Bearing Turbo for BMW N55 PWG is a complete turbo upgrade for your BMW featuring a dual ceramic ball bearing cartridge and a custom GTX3076R sized compressor and turbine wheels.  This turbo is designed to provide early torque for a more stock-like response but with loads more power and power holding throughout the power band instead of falling off on the top end.

This turbo is designed to work well with basic mods.  With a larger front mount intercooler, downpipe, inlet, charge pipe, and low-pressure fuel pump, our testing shows roughly a 20% power gain vs the just the bolt-ons and the stock turbo with just 16 psi of boost.  The STX 76R compressor wheel does flow over 65 lbs/min over 25 psi, so it is plenty capable of making even more power than that.  With sufficient fueling, the STX 76R is capable of making 550-600 whp.

The STX 76R installed on a N55 on an engine stand:

Turbo Specs:
- Compressor wheel: 58mm inducer, 76mm exducer, flows ~67 lbs/min
- turbine wheel: 60mm inducer, 55mm exducer
- compressor housing, new casting, stock-style
- turbine housing, new casting, high-performance twin-scroll, +sized A/R vs stock

Car Under Test:
This data is from a 135i with PWG-style N55. We took a stock car with the base MHD map, measured performance, added basic standard bolt-ons, measured again with the MHD 2+ tune, and finally added the STX 76R and measured again after tuning for the turbo. The idea was to take a stock N55 car running pump gas and a conservative amount of boost, and add a minimum set of bolt-ons to support a turbo, and then add the STX 76R.

Modifications:
"Stage 2" upgrades: larger front mount intercooler, catless downpipe, charge pipe, inlet, and MHD stage 2+ tune. Everything else was stock including fuel pump, ect.
Post turbo modifications: all of the above + STX 76R + tune

Tune:
The turbo tune was done by Zack at 22rpd on their DynoCom dyno with pump gas and ~15 psi target. Zack is a long time BMW tuner well-known for high-power turbo builds on E36 and E46 cars.

Result:
Stock: 310 whp, 307 ft*lbs
Stage 2+: 366 whp, 436 ft*lbs
With STX 76R+ turbo: 429 whp, 416 fr*lbs







Conclusion:
The turbo basically accomplished what it was designed to do, respond quickly, and make much better power than the stock turbo. With a few boltons and the SteamSpeed STX 76R, a stock N55 car made another 120 whp, or around 40% more power. As compared to the car with boltons, the car made another 60 whp, or around a 20% gain. Our turbine housing also made a nice torque and powerband. Our new housings also allowed the powerband to hold on much longer to red where you would normally see turbos with stock housings fall off.

Furthermore:
As we continue testing on other cars, we found that fueling was limiting this setup, and adding a Walbro 450 LPFP, we were able to see around 450 whp and 450 ft*lbs on pump gas and 16 psi, so we recommend doing that upgrade as well as the basic stage 2 stuff.

Next up, we'll push it to the 20-25 psi range on pump gas to hit closer the turbo's peak flow. The turbo would flow the most around 25-30 psi, but that will more than what pump gas can provide.

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SKU: 22267706167

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Verified Purchase
Jamie Betts
Belleville, US
★★★★★ 1
Not Meant For Aggressive Chewers
Color: Brown Bird
Lasted 5 minutes. Definitely not for the aggressive chewers.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
T
Taylor
Houston, US
★★★★★ 5
Strong toy
Color: Gray Bird
My dogs absolutely love this toy! I must get more. They are rly durable and I’d recommend this toy to others.
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Reviewed in the United States on June 10, 2026
R
Rob Kujovich
New York, US
★★★★★ 4
The toys body is very durable, but the squeakers were broken within minutes without tearing it apart
Color: Green Bird
This is a squeaky dog toy that was supposedly very durable. I have to say that the squeakers are not durable and were immediately destroyed by my husky. The actual body of the toy is very durable and they were not able to rip it apart. They were able to destroy the squeakers without damaging the actual exterior of this toy. The toy itself is pretty soft except where it’s made of rope. Since it didn’t have any stuffing come out I will say that it was durable enough for chewing. This would be suitable for large larger dogs and even smaller dogs. I do feel this is a good value for the money because they were not able to rip it apart. I just wish the squeakers were more durable inside because there’s no way to replace those.
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Reviewed in the United States on June 4, 2026
D
Darin Kelly
Waukegan, US
★★★★★ 5
Our dogs new favorite toy
Color: Green Bird, Color: Green Bird
Our golden doodle loves this toy. He isn't a highly aggressive chewer necessarily, but he has been known to destroy toys by chewing on them and such. This one, so far, has lasted over a month or so. It has turned out to be his go to toy when he's wanting to play with one. The squeaker isn't that loud and it's not that easy to find. I like that legs are rope material and makes it good for tug of war, which Max loves to do. The material is pretty sturdy and it is a good weight. Sometimes when the toys are too heavy Max won't catch them in the air, this one he catches in the air just fine. It's very cute and I think it will hold up just fine to our Max's level of chewing. I felt the price was quite reasonable considering how much he likes it.
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Reviewed in the United States on May 2, 2026
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Verified Purchase
Lapayswa Nimmons
Lowell, US
★★★★★ 2
My dog destroyed this toy in 72 hours
Color: Blue Bird, Color: Blue Bird
Loved the toy but unfortunately this indestructible toy was destroyed by my Yorkie puppy in 3 days
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Reviewed in the United States on April 6, 2026

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