Dorch Engineering B58 Gen 1 DS15 HPFP Upgrade

Dorch Engineering Stage 1 (DS15)

*Read kit fitment below*

From the creators of the world’s first B58 direct-injection fueling upgrades, comes our next generation of pumps. Our widely successful “Dorch Stage 1” (DS1) has been replaced with our latest and greatest creation; the DS15! This new pump is our “Stage 1.5” which has been completely redesigned and optimized from the ground up. Externally we’ve updated the pump packaging to provide improved hose routing. There’s no cutting, no bending, no crimping, etc. This kit drops right in with full control from the DME, just like factory. Internally, we’ve re-worked the pressure chamber, spring rates, plunger depth, and completely optimized the volumetric efficiency of the pump. This is now a 250 bar capable pump and here’s the gains to be expected at 200 bar:

Software changes are required to run this pump. If using Bootmod3, MHD, or MG Flasher, simply check the box for our pump upgrade when flashing. Otherwise, please send your .BIN file to tuning@dorchengineering.com for the appropriate software changes via WinOLS.

Beyond the pump performance, why choose Dorch?

• PLUG AND PLAY: This kit is truly 100% plug and play OEM fitment. Our kit is equipped with everything you need, including our 250 bar capacity hardline to effortlessly connect our HPFP to your fuel rail.
• LIFETIME WARRANTY: The reason we can offer this is simply because our pumps are THAT reliable. That said, on the slim chance you have an issue, we’ve got your back!
• CUSTOMER SUPPORT: Ask around! It’s no secret that we offer unrivaled 24/7 support with REAL help. You’re an email away from professional engineers, technicians, and our tuner, who can solve anything you throw at them.
• TUNING SUPPORT: We aren’t just a hard part’s manufacturer. We have a dedicated calibration engineer in-house who painstakingly develops all of our HPFP files using OEM calibration tools and supports a global tuning network.

Kit Contents:

• Dorch Lifetime Warranty
• HPFP w/ Hardware
• High Pressure Line
• Quick Connect Low Pressure Line
• Low Pressure Line Bracket
• Plug-n-Play Adapter Harness

Kit Fitment:

F20/21 – 140i, 140xi
F22/23 – 240i, 240xi
F30/31/34 – 340i, 340xi
F32/33/36 – 440i, 440xi

G30/31 – 540i, 540xi *
G32 – 640i, 640xi *
G11/12 – 740i, 740xi *

G01 – X3 m40i *
G02 – X4 m40i *

* ONLY UP TO 2019 Model Year
KIT NOT COMPATIBLE with Gen2 B58 Vehicles

Dorch Stage 2 (DS25)

BACKORDERED – New Orders Ship mid-April

NOTE: If you already have an ethanol sensor in your car, simply choose the correct chassis fitment and type “ECA HOSES” in the order notes.

From the creators of the world’s first B58 direct-injection fueling upgrades, comes our next generation of pumps. We’re proud to announce the 350 bar version of our wildly successful DS25 pump; another first of it’s kind in the aftermarket! Internally, we’ve re-worked the entire pump body, spring rates, plunger depth, and completely optimized the volumetric efficiency of the pump. What we’ve come up with is the same consistent and extremely reliable HPFP solutions we’re known for, but now at 350 bar operating pressures for Gen2 B58 compatibility! There’s no cutting, no bending, no crimping, etc. This kit drops right in with full control from the DME, just like the OEM pump. All of the safety and sophistication of the stock DME remain in place.

Software changes are required to run this pump. If using Bootmod3 or MHD, simply check the box for our pump upgrade when flashing (coming soon). Otherwise, please send your .BIN file to tuning@dorchengineering.com for the appropriate software implementation via WinOLS.

NOTE: Higher flowing injectors are required to take advantage of the full potential of our HPFP. With just our HPFP (without our upgraded cam lobe) the best bang for your buck is the OEM S58 injectors. These provide +30% MORE flow versus the stock injectors and they are available HERE.

Beyond the pump performance, why choose Dorch?

• PLUG AND PLAY: This is the ONLY true plug and play OEM fitment option on the market. Our kit includes our 350 bar capacity hardline to effortlessly connect our HPFP to your fuel rail (versus the time consuming process of bending and potentially damaging the OEM line to fit).
• LIFETIME WARRANTY: The reason we can offer this is simply because our pumps are THAT reliable. That said, on the slim chance you have an issue, we’ve got your back!
• CUSTOMER SUPPORT: Ask around! It’s no secret that we offer unrivaled 24/7 support with REAL help. You’re an email away from professional engineers, technicians, and our tuner, who can solve anything you throw at them.
• TUNING SUPPORT: We aren’t just a hard part’s manufacturer. We have a dedicated calibration engineer in-house who painstakingly develops all of our HPFP files using OEM calibration tools and supports a global tuning network.

Kit Contents:

• Dorch Lifetime Warranty
• HPFP w/ Hardware
• Dorch High Pressure Line
• PTFE Low Pressure Line
• Low Pressure Hose Bracket
• Plug and Play Adapter Harness

Kit Fitment:

A90/91 – Toyota Supra
G29 – Z4 M40i

G42/43 – M240i, M240xi
G20/21 – M340i, M340xi
G22/23/26 – M440i, M440xi

G30/31 – 540i, 540xi *
G32 – 640i, 640xi *
G11/12 – 740i, 740xi *
G15/16 – 840i, 840xi
G05 – X5 40i
G06 – X6 40i
G07 – X7 40i

G01 – X3 M40i *
G02 – X4 M40i *

* ONLY GEN2 B58 Equipped Model Years

Installation Instructions:

B58 Gen2 HPFP Installation