Momentum Worx S478 WAR WHISTLE | 78MM Billet Turbocharger | 1.32 A/R T6

BIG wheel. BIG boost. SMALL price. Let's go to WAR.

Short on funds? Well, that doesn't mean you need to be short on power.

Introducing the Momentum Worx S478 WAR WHISTLE, a budget-friendly 78MM billet turbocharger built for the guys who want to make serious power without spending a fortune.

We stuffed a massive 78MM / 110MM 11-blade billet compressor wheel into an S400-frame turbocharger, paired it with a 96/88MM turbine wheel and a 1.32 A/R divided T6 exhaust housing, and created one seriously aggressive performance turbo.

The wheel is HUGE. The blade count is TALL. And our asking price? SHORT.

Whether you're building a hot street truck, upgrading your CAT 3406E or C15, or just looking for more boost without emptying your wallet, the WAR WHISTLE is ready to get to work.

Because your truck should be out making JAM while you're out making MONEY. $$$

78/110MM Billet Compressor – Bigger Than Your Average S478

Here's where things get interesting.

Many traditional S478 configurations feature a 78MM compressor inducer with a 105MM exducer.

Not this one.

The Momentum Worx WAR WHISTLE features an oversized 78MM inducer / 110MM exducer billet compressor wheel.

That's an additional 5MM of outside diameter compared with the conventional 78/105MM configuration.

And that difference isn't just for bragging rights.

The larger compressor wheel exducer allows for taller compressor blade geometry, providing additional blade surface area and a different airflow profile compared with a conventional S478 wheel.

More compressor wheel. More blade surface. Serious airflow potential.

We wanted a turbocharger that could support a hard-running performance diesel without the premium price tag of some larger-frame alternatives.

The result is the WAR WHISTLE.

11-Blade Billet Wheel – Built for Street Response

A big compressor wheel doesn't mean we forgot about drivability.

The WAR WHISTLE features an 11-blade billet compressor wheel designed to favor low-end boost response while maintaining the airflow potential of its oversized 78/110MM configuration.

Compared with more top-end-oriented compressor designs, the 11-blade configuration is intended to help build boost earlier in the operating range.

That makes this turbo an attractive option for street-driven performance trucks where throttle response and usable power matter.

We want this thing to come online, make boost, and get moving.

Not every truck spends its life at wide-open throttle. Sometimes you need a turbocharger that delivers when you're rolling into the pedal on the street.

The WAR WHISTLE is designed with exactly that kind of performance in mind.

Actual spool-up and airflow depend on compressor geometry, engine displacement, fueling, tuning, and overall turbocharger configuration.

CAT 3406E & C15 – Big Power on a Budget

If you're running a Caterpillar 3406E or C15, the WAR WHISTLE deserves a serious look.

The oversized 78/110MM compressor wheel provides an interesting option for CAT owners looking for a larger turbocharger without spending S410SX money.

Now, let's be clear about something.

This turbo is built on an S400 bearing housing, not the larger S410SX platform commonly used in premium CAT performance applications.

The S410SX offers advantages in bearing spacing and rotating assembly support, making it a more robust foundation for particularly demanding applications.

The S400 is a more economical platform.

And that's exactly why the WAR WHISTLE exists.

We're not pretending this is our most expensive or most overbuilt turbocharger.

We're giving you a massive compressor wheel, a performance-oriented configuration, and an extremely competitive price.

For the customer who wants a serious budget CAT turbocharger, that's a pretty compelling combination.

Assembled & Balanced in the USA

Affordable doesn't have to mean careless.

Every Momentum Worx S478 WAR WHISTLE is assembled and balanced right here in the USA.

We believe the details matter, even when we're building a turbocharger designed to hit an aggressive price point.

You get the big compressor wheel, the S400 platform, and the attention to assembly and balancing that comes with the Momentum Worx name.

Budget-friendly pricing. Not budget-minded workmanship.

Blow It Up? We'll Replace It. Seriously.

Here's where the WAR WHISTLE really separates itself from the other budget performance turbochargers.

Every Momentum Worx S478 WAR WHISTLE includes our 1-Year, No-Questions-Asked Replacement Warranty.

And when we say no questions asked, we mean it.

Overspeed it? Push it too hard? Make a mistake with your setup?

Even if the failure is your fault, we'll replace the turbocharger one time during the first year, completely free of charge.

No arguing about boost pressure. No excuses. No looking for a reason to deny the claim.

One year. One free replacement. ANY failure.

Go ahead. Make some boost.

We've got your back. :)

Momentum Worx S478 WAR WHISTLE Specifications

Who Is the WAR WHISTLE For?

The Momentum Worx S478 WAR WHISTLE is a great candidate for:

• CAT 3406E Performance Builds: A budget-friendly large-compressor turbocharger option.
• CAT C15 Performance Builds: A compelling choice for modified engines seeking increased airflow potential.
• Street-Driven Performance Trucks: Designed with low-end response and usable power in mind.
• Custom Commercial Diesel Applications: A versatile S400-frame option for appropriately matched high-output builds.

Application fitment depends on exhaust manifold configuration, piping, fueling, tuning, and supporting modifications.

Big Wheel. Small Price. One Ridiculous Warranty.

The Momentum Worx S478 WAR WHISTLE isn't trying to be the most expensive turbocharger in our lineup.

It's trying to give you the most bang for your buck.

78/110MM billet compressor. 11 blades. S400 frame. USA assembled and balanced. One-year no-questions-asked warranty.