BMW M340i B58 G20/G21 Tuning

Engine Tuning 

Stage 1 TRS Engine Tune 

STG 1 Power increased to 450BHP and 650NM of torque. 

*Power figures are climate, fuel quality and vehicle dependant.

*Power figures are real figures we have seen on our dyno, these numbers are sometimes less than seen on other more optimistic dynos. 

Stage 2 TRS Engine Tune 

STG 2 power is increased to 470+BHP and 700NM of torque when using 99 RON fuel.

*Power figures are climate, fuel quality and vehicle dependant.

*Power figures are real figures we have seen on our dyno, these numbers are sometimes less than seen on other more optimistic dynos. 

Necessary Hardware upgrades for Stage 2 are:

• Free Flowing Downpipe/Sports-Cat
• We recomend one step colder NGK Iridium Spark Plugs or BMW TU spark plugs. 

Please note: From June 2020 Onwards these ECU's require a Femto unlock, please contact us prior to purchaising so we can  check your ECU variant 

Features include:

• Enable Overrun in Drive/Sport/Sport+/Manual (Any Mode required)
• Change Overrun Duration
• Change Overrun Aggression
• 95RON, 97RON and 99RON Fuel Quality available. Other's on request
• Linear throttle response in Sports/Sport+ Modes
• Reduced Torque in lower gears to aid traction
• Cold start removal
• Remove vehicle top speed
• Manipulation of Exhaust Valve - Always open in Sports Mode

XHP Gearbox Tuning Packages

Priced at  £300 inc VAT

STG1 Road/Comfort Transmission Tune:

• Added Gear-Display in D-Mode
• Increased Torque Limiters
• Raised Clutch Pressure for in-put torque

STG2 Sport Transmission Tune:

• Added Gear-Display in D-Mode
• Increased Torque Limiters
• Raised Clutch Pressure for in-put torque

STG3 Sport+/Track Transmission Tune:

• Added Gear-Display in D-Mode
• Increased Torque Limiters
• Raised Clutch Pressure for in-put torque
• Reconfigured Logic, similar to M-Car
• Shift-points optimized in D
• Full Manual Mode when in M/Sport+
• DTC off and DSC off activates the fastest shifting routines
• Improved Launch Control