Dorch Engineering DE70 - B58 Gen 1 Fuel Injectors

Until now, the only way to achieve increased injector flow in the aftermarket was to modify an OEM injector, ultimately a compromised solution. Dorch Engineering's DE70 changes that entirely, genuinely the world's first true upgraded direct injection injector for the B58 Gen 1, developed from the ground up through a long-term engineering partnership with Tier 1 supplier Stanadyne rather than adapted from an existing part.

By combining Dorch's hardware and software applications expertise with Stanadyne's patented technology and manufacturing capabilities, the result is a Tier 1 OEM-quality drop-in injector with genuinely substantial fueling gains, delivering +70% additional flow beyond the stock injectors. Because this is a blank-slate design rather than a modified factory part, it's been properly optimised for both aftermarket performance use and alcohol-based fuels, while still retaining stock drivability and idle characteristics, a combination that simply isn't achievable with a modified OEM injector. Expect flow capacities supporting up to 1050whp on pump gas, 900whp on E50, and 800whp on E85, depending on your specific tuning.

Software changes are required to run these injectors, this is not optional. If using Bootmod3, MHD, or MG Flasher, select the injector upgrade option when flashing (availability may vary by platform). Otherwise, send your .BIN file to Dorch Engineering directly for the appropriate software implementation via WinOLS.

Why Choose These Injectors

• World's first true purpose-built aftermarket DI injector for the B58, not a modified OEM part
• Developed from the ground up with Tier 1 supplier Stanadyne
• +70% additional fuel flow over stock, genuinely verified gains
• Retains stock drivability and idle characteristics despite the substantial flow increase
• Optimised for alcohol-based fuels as well as pump gas
• Supports up to 1050whp (pump gas), 900whp (E50), or 800whp (E85) depending on tune

Compatibility

• BMW B58 Gen 1 (F-Series: M140i, M240i, 340i, 440i)

Software requirement: tuning changes are mandatory to run these injectors. Compatible with Bootmod3, MHD, and MG Flasher (check current platform support), or send your .BIN file to Dorch Engineering for custom implementation.