News
Why many chip tuning tools only do half the job – The truth about cheap interfaces
Short answer: Cheap OBD tuning interfaces can write to the ECU, but leave CPC and TCU untouched, apply generic standard mappings, and lack voltage protection during flashing—leading to incomplete optimization...
Why it does not make sense to increase the injection duration – The risks of injector decalibration
Short answer: Simply extending injection duration sounds like more power, but it decalibrates the injectors: Lambda values shift, the injection timing overlaps the ignition timing (pre-ignition, knocking), and with direct...
Map optimization vs. % tuning – Why clean calibration is crucial
Short answer: Percentage tuning blindly increases all values (torque, boost pressure, injection quantity) by a fixed percentage — without adjusting load axes, without checking lambda, and without considering thermal reserves....
Why many providers perform CPC and engine control unit optimization incorrectly – The risks of bad software
Short Answer: In Mercedes-AMG vehicles, performance and torque limits are distributed across three control units: ECU, CPC (Central Powertrain Controller), and TCU (Transmission). If you only tune the ECU, the...
Tuning for A45, C63, E63 & GLC63 AMG – Unleash the full potential
Short answer: The AMG models A45, C63, E63, and GLC63 are factory-throttled by ECU, CPC, and TCU limits: torque limitation, VMAX restriction at 250 km/h, slow shift times. Our Stage-1...
Remote chip tuning for Mercedes – It's that easy with Tactrix OpenPort 2.0
Short answer: Remote chip tuning works via Tactrix OpenPort 2.0: You plug the dongle into your Mercedes’ OBD2 port, connect it to your laptop, and we handle reading, optimizing, and...
Mercedes-AMG transmission optimization – 9G-Tronic & 7G-Tronic 🚀
Short answer: The AMG 9G-Tronic (VGSNAG3) and 7G-Tronic (VGSNAG2) automatic transmissions are factory-tuned for comfort and durability: long shift times, artificial torque limits, throttled launch control. A TCU optimization shortens...
CPC optimization for Mercedes-AMG – Why it is indispensable 🚀
Short answer: Every modern Mercedes-AMG has a second control unit in addition to the ECU: the CPC (Central Powertrain Controller). It limits VMAX, torque, launch control, and accelerator pedal mapping...
Mercedes-Benz CPC & transmission optimization – 100% remote with Stefanel Performance! 🚀
Short Answer: We optimize your Mercedes-AMG's ECU, CPC, and TCU completely remotely using the Tactrix OpenPort 2.0 interface – no workshop appointment needed, available worldwide. Unlike providers who manipulate load...
Exclusive cooperation with Wolfgang Weber: Perfect chassis setup for our customers
Short answer: We cooperate with Wolfgang Weber (WWMotorsport, Dipl.-Ing., Rallye-Mitropacup winner, RUF test driver, author of “Driving Dynamics in Perfection”). When you purchase a KW or ST coilover kit, you...
Stage 1 optimization for Chevrolet Camaro ZL1 (model year 2018): More power, more driving fun!
Short answer: For the Chevrolet Camaro ZL1 (2018), with a Stage 1 optimization, we achieved 650 HP → 700 HP and 881 Nm → 949 Nm. This was purely a...
Stage 1 optimization for Porsche 996 (3.4L, 300 hp, built in 2000): More power and dynamics
Short answer: We performed a Stage 1 optimization on a Porsche 996 (3.4 L, year 2000) using the Bosch ME7.2 control unit — increasing power from 300 HP to 320...
