Backed by 20+ years of hands-on experience, Master Mechanic Emil leads Nac's Performance as your trusted Diesel Specialist and Advanced Diagnostic authority—now featuring live Tesla Onboard CAN-Bus & High-Voltage Diagnostics alongside heavy-duty diesel repair, custom engine builds, and factory-grade maintenance.
Complete high-pressure common-rail fuel system testing, injector & CP3/CP4 service, turbocharger & VGT actuator rebuilds, ARP head studs, EGR/cooler service, and heavy-duty diesel repair.
With over two decades of master-level wrenching, Emil solves the complex diesel, Tesla/EV onboard telemetry, electrical, and performance problems that dealerships turn away.
20+ years working on Ford Powerstroke, Ram Cummins, GM Duramax, and light/medium-duty diesels. From high-pressure fuel systems to bulletproofing and turbo overhauls.
No parts-cannon guessing. Multi-channel lab oscilloscopes, factory bi-directional scan tools, and direct Tesla CAN-bus / Toolbox 3 onboard diagnostics for HV battery, drive unit, and thermal faults.
From forged engine builds, turbo/supercharger upgrades, and suspension setups to honest everyday brakes, cooling, timing chains, and preventative maintenance.
Connect an onboard Bluetooth/USB CAN bridge right from your browser, run a 6-bus Tesla subsystem health sweep, or decode any Tesla screen alert code before paying service-center replacement prices.
See an alert code in your Tesla's Controls → Service → Notifications menu? Select or type it below to see how Emil diagnoses the component-level fix instead of a full assembly replacement.
Select one or more services below to build an instant ballpark estimate and send your service request directly to Emil's bay schedule.
At most shops, you talk to a service writer at a desk who has never diagnosed a high-pressure common-rail diesel fault, isolated a Tesla high-voltage BMS alert, or traced a CAN-bus electrical short. At Nac's Performance, you work directly with Emil—bringing 20+ years of hands-on experience as a dedicated Diesel Specialist and Advanced Diagnostic technician.
Whether your heavy-duty diesel truck needs fuel system overhaul, turbo repair, or head studs, your Tesla has an onboard HV battery, Octovalve heat pump, or drive unit alert, or your vehicle has an elusive electrical fault that other shops couldn't solve, every job gets surgical attention to detail.
Factory scan tools, oscilloscope waveform testing, and Tesla CAN-bus telemetry so you never pay for guesswork.
Proven mastery across Powerstroke, Cummins, Duramax, Tesla EV platforms, and domestic/import performance builds.
See exactly what Emil sees on the lift and in the diagnostic data logs before approving work.
"Emil is the best diesel specialist around. You can immediately tell he has 20+ years of experience. Diagnosed a rail pressure drop and sticky VGT turbo actuator on my 6.7 Powerstroke in under an hour and got my tow rig pulling harder and cleaner than ever."
"My Model Y threw a VCFRONT_a447 heat pump and BMS isolation warning out of warranty. Emil hooked into the onboard CAN diagnostics, pinpointed a failing refrigerant pressure-temp sensor and corroded harness pin, and fixed it for a fraction of the service center quote."
"Two dealerships couldn't figure out an intermittent no-start and CAN-bus fault on our work truck. Emil put his oscilloscope on it, found a chafed harness wire and failing injector solenoid in 45 minutes, and saved us thousands."
"Emil takes care of everything in our driveway—from performance suspension and exhaust upgrades on my weekend car to advanced diagnostics, brakes, and A/C on our daily drivers. Fair pricing, crystal-clear photos, and 20 years of real know-how."
Fill out your vehicle details below. Emil reviews every request personally and responds within 1 business day with bay availability and an itemized estimate.
Have an urgent diesel issue, Tesla alert, diagnostic, or tow-in? Call the shop line directly.