DAP G2 S300 Billet SXE S357/14 Turbo

Q: Why is the billet compressor wheel better than a cast wheel?

The billet wheel uses an updated design with a 57.1mm inducer and a smaller 76.2mm exducer. The smaller exducer reduces rotating mass, which allows the wheel to spool faster and respond more quickly at lower RPM compared to a heavier cast wheel design.

DAP G2 S357/14 Billet Turbo - 1991.5-2002 Dodge Ram 5.9L Cummins

DAP G2 S300 Billet SXE S357/14 Turbo | 1991.5-2002 Dodge 5.9L Cummins

$1,149.00

Part Number: DAP-G2S3576514G40T3
Est. Ship Time: Usually Ships By Next Business Day

Diesel Auto Power

Qty

Add to Cart

Ask Question

Add to Wish List

SSL SECURE
TRANSACTION

AUTHENTIC
PRODUCTS

GUARANTEED PREMIUM
QUALITY

A+ Rating

Based on 0 reviews. - Write a review

Cannot Ship to California or Colorado.
This turbo does not meet CA or CO emissions requirements and cannot be shipped to those states. Orders from CA or CO will be cancelled.

Exhaust Outlet Fitment Requires Verification Before Ordering.
This turbo uses an HX40 exhaust outlet. For 1994-2002 applications, you will need the DALHX40 4" HX40 downpipe. If you want to retain the stock exhaust, order adapter flange DAP-22445 (HX40 to HX35). Neither the downpipe nor the adapter is included. Confirm your exhaust plan before ordering.

The DAP-G2S3576514G40T3 is a billet compressor wheel S300-frame turbo built specifically for 1991.5-2002 Dodge Ram 5.9L Cummins trucks that need faster spool, better EGT control, and strong drivability in the 300-500HP range. This is a step up from a standard replacement turbo - the billet wheel design, modified turbine housing, and 360-degree thrust bearing put it in a different category than stock-style alternatives.

Is This the Right Turbo for Your Truck?

Buy this if...

Your truck is a 1991.5-2002 Dodge Ram 5.9L Cummins and you want a quick-spooling upgrade in the 300-500HP range (350-425HP for 1st gen)
You tow regularly or daily drive and want better EGT control without sacrificing drivability
You want a billet compressor wheel upgrade over a cast-wheel turbo for faster spool and lighter rotating assembly
You have your exhaust outlet situation sorted - either the DALHX40 downpipe or the DAP-22445 HX40-to-HX35 adapter

Do not choose this if...

You want a direct bolt-on stock replacement with no exhaust planning required
Your goal is pure factory restoration rather than added EGT headroom and performance ceiling
You are in California or Colorado - this turbo cannot ship to those states
You are building beyond 500HP - this turbo is optimized for the 300-500HP window, not high-horsepower compound or single-turbo builds

Verify before ordering...

Confirm your year and engine: 1991.5-2002 Dodge Ram 5.9L Cummins only
Confirm your exhaust outlet plan: DALHX40 4" downpipe (1994-2002) or DAP-22445 adapter for stock exhaust retention
Confirm your oil inlet: included fittings cover 1994-1998 12V or 1998-2018 applications
Confirm your shipping address is outside CA and CO

Why the Billet SXE S357 Stands Apart

The DAP G2 S300 Billet SXE S357 is built around three specific design choices that separate it from both stock turbos and standard cast-wheel S300 upgrades:

Billet compressor wheel: The updated design runs a 57.1mm inducer and a 76.2mm exducer - a smaller exducer than older S300 designs. Less rotating mass means the wheel spins up faster and responds more aggressively at lower RPM.
Modified turbine housing: The 65mm turbine wheel paired with the quick-spooling 14cm housing is tuned specifically for EGT control and driving manners - not just peak airflow. This combination rewards street driving and towing more than a larger housing would.
360-degree thrust bearing: Built for extreme-duty oiling support. Standard turbo bearings handle normal load; the 360-degree thrust bearing is built for sustained, high-heat applications where longevity matters.
Adjustable wastegate option: An adjustable wastegate is available at additional cost and is recommended for easier installation and oil drain fitment. The gated T3 housing is included; the adjustable wastegate is an optional upgrade.

Airflow rating is approximately 67 lbs/minute. This is an upgrade turbo, not a stock-style replacement.

300-500HP Range: Who This Turbo Is Built For

The honest HP window for this turbo:
This turbo supports 300-500HP depending on elevation, turbine choice, and engine modifications. For 1st gen (1989-1993) applications, the supported range is 350-425HP. It is a fast-spooling, drivability-focused turbo - not a maximum-ceiling sled pull build. If your build target is above 500HP, this is not the right turbo.

The 57/65/14 sizing is a deliberate street and towing choice. The 14cm housing spools aggressively, keeps EGTs in check under load, and makes the truck feel responsive at everyday RPM levels. Buyers who tow frequently, drive daily, or want a strong all-around truck will find this setup rewards normal use better than a larger, slower-spooling alternative.

For context, DAP recommends these injector pairings based on your application:

1998.5-2002 with a big programmer: 50HP to 125HP injectors
1994-1998: 5x.011, 5x.012, 6x.011, or 7x.010 injectors
1989-1993: 5x.011, 5x.012, 6x.011, or 7x.010 injectors

Buy this for the EGT control and spool advantage in the 300-500HP window. If your truck is stock and you just need a basic replacement, a simpler stock-style turbo is the better path.

Exhaust Outlet: Plan This Before You Order

This turbo has an HX40 exhaust outlet. That is not the same as the stock HX35 outlet on most factory Cummins setups. You have two paths:

Run a 4" HX40 downpipe: Order DALHX40 for 1994-2002 applications. This is the preferred performance path and the correct choice if you are building for this turbo's full capability.
Retain the stock exhaust: Order adapter flange DAP-22445 (HX40 to HX35 Exhaust Outlet Elbow Adapter). This lets you bolt to the existing stock exhaust without swapping the downpipe.

Neither the downpipe nor the adapter is included with this turbo. Do not order this turbo assuming the exhaust will connect without additional parts. Decide your exhaust path before you place the order.

T4 Manifold Note: If your application uses a T4 exhaust manifold, you may need a matching manifold or a T3-to-T4 adapter. This turbo has a T3 inlet flange.

What Comes in the Box

DAP G2 S300 Billet SXE S357 57/65/14 T3 Gated turbocharger
Oil drain bolts
Oil drain seal
Turbo-to-manifold bolts or studs
Compressor o-ring seal
Oil inlet fitting for 1994-1998 12V or 1998-2018 applications

Not included: downpipe, exhaust adapter, adjustable wastegate (optional upgrade at additional cost).

Fitment Coverage

This turbo fits 1991.5-2002 Dodge Ram 5.9L Cummins applications. This covers both 12-valve (1991.5-1998) and 24-valve (1998.5-2002) trucks. HP support for 1st gen (1989-1993) applications is 350-425HP. For 2nd gen (1994-2002) applications, the supported range is 300-500HP depending on elevation, turbine choice, and modifications.

If you are unsure whether your build falls within this turbo's supported range, review your injector spec and power target against the injector recommendations listed above before ordering.

Cross Reference Part Numbers

This turbo is comparable to or replaces the following:

13749880014 Borg Warner GXE GX-E

Avoid These Common Mistakes

Ordering without planning the exhaust outlet. This turbo has an HX40 outlet. If your truck has the stock HX35 exhaust, you need the DAP-22445 adapter or the DALHX40 downpipe. Do not assume the stock pipe will connect.
Skipping the adjustable wastegate if you want the easiest install. DAP recommends the adjustable wastegate for easier installation and oil drain fitment. It costs extra but simplifies the install.
Assuming this is the right turbo for builds above 500HP. This turbo is sized and optimized for the 300-500HP range. Buyers pushing past that ceiling should look at a larger-frame or higher-flow option instead.
Ordering from California or Colorado. This turbo cannot ship to CA or CO. Orders will be cancelled.
Not matching injectors to the application. Injector sizing recommendations differ between 1989-1993, 1994-1998, and 1998.5-2002 trucks. Match your injectors to the correct generation using the recommendations listed above.

Before You Place the Order

Truck is a 1991.5-2002 Dodge Ram 5.9L Cummins
Power target is within the 300-500HP range (350-425HP for 1st gen)
Exhaust outlet plan confirmed: DALHX40 downpipe or DAP-22445 adapter ordered separately
Injectors matched to the correct generation recommendation
Shipping address is outside California and Colorado

Checklist confirmed? The DAP-G2S3576514G40T3 is the correct billet SXE S357 turbo for your build.

Frequently Asked Questions

Click or tap a question below to expand the answer.

Does this turbo require a new downpipe?

Yes, in most cases. This turbo has an HX40 exhaust outlet, which does not connect directly to the stock HX35 downpipe. For 1994-2002 applications, order the DALHX40 4" HX40 downpipe. If you want to keep the stock exhaust, order the DAP-22445 HX40 to HX35 adapter flange instead. Neither is included with the turbo.

What is the HP range this turbo actually supports?

This turbo supports 300-500HP depending on elevation, turbine choice, and engine modifications. For 1st gen (1989-1993) applications specifically, DAP rates it at 350-425HP. It is not designed for builds above 500HP. If your power target exceeds that, this is not the right turbo for your build.

Why is the billet compressor wheel better than a cast wheel?

The billet wheel in this turbo uses an updated design with a 57.1mm inducer and a smaller 76.2mm exducer. The smaller exducer reduces rotating mass, which allows the wheel to spool faster and respond more quickly at lower RPM compared to a heavier cast wheel design. Combined with the 14cm turbine housing, this is what gives the SXE S357 its drivability advantage over larger, slower-spooling alternatives.

Is the adjustable wastegate included?

No. The turbo comes with the T3 gated housing, but the adjustable wastegate is an optional upgrade available at additional cost. DAP recommends adding it for easier installation and improved oil drain fitment. If you plan to install this yourself or want the cleanest install possible, the adjustable wastegate is worth considering.

What oil inlet fitting is included?

This turbo includes an oil inlet fitting that covers 1994-1998 12V Cummins or 1998-2018 applications. Verify your application falls within that range before ordering.

Will this turbo work with my T4 exhaust manifold?

This turbo has a T3 inlet flange. If your application runs a T4 manifold, you will need either a matching T4 manifold or a T3-to-T4 adapter. Plan accordingly before ordering.

Why can't this turbo ship to California or Colorado?

This turbo does not meet California or Colorado emissions requirements and is restricted from shipment to those states. Orders placed from CA or CO addresses will be cancelled. There is no exception to this restriction.

How does this compare to the Borg Warner GXE or GX-E?

This turbo is listed as a comparable alternative to the Borg Warner GXE and GX-E (also cross-referenced as part number 13749880014). The DAP G2 S300 Billet SXE S357 uses a billet compressor wheel and 360-degree thrust bearing that differentiate it from standard cast-wheel configurations in that comparison class.