The E46 M3 S54 engine responds well to the right type of ECU software. Conventional methods of advancing the ignition timing under full load has little effect. This is what the industry has seen over the years with no gain in power neither on the road or the dyno.
1.You can install / upload the software performance tune yourself with the aid of a laptop (you provide)
1.If you own a K&N drop-in performance air filter. The CFM flow rate is much greater than the factory paper element. We have seen such improvements while running a factory/stock E46 M3 on our in house dyno. As such, we strongly believe that the performance tune should take into account the style of air intake installed on each specific M3. You will receive a specific tune to accommodate your specific air intake at no additional charge to you. Call us for your options.
2.Same thing applied if you own a K&N #63 Air Intake System or AFE Intake System. These systems require that the factory mesh baffle within the factory air box be removed. As such, the air turbulence created is much different and can influence the CFM flow rate as well. We strongly believe that the performance tune should take into account the style of air intake installed on that specific M3. You will receive a specific tune at no additional charge to you. Call us for your options.
3.Having installed a CSL style intake system dramatically changes the air intake charge set-up. Not only is this radically different, but the software to operate with the CSL style is also different. You will need to run a Alpha N tune configuration.
There are also different configurations of CSL airboxes, from the genuine to aftermarket replicas. There is an additional cost to run this set-up.
1.Have BMW factory headers with BMW factory catalysts installed. Our tune was made primarily for this set-up. You will receive a specific tune to accommodate your header configuration at no additional charge to you. Call us for your options.
2.Have BMW factory headers installed on your M3 but configured by you to run without the catalysts for gains of additional horsepower. 
Just like the E46 M3 with SMG gearing, your BMW E46 M3 with 6 speed can now enjoy a Shift Light feature. We perform this upgrade through the software at no additional cost to you. Please call us to add your 6 Speed Shift Lights feature.
Just like the European version BMW E46 M3 CSL that has a crisper, more precise shifting on the SMG, so too can you enjoy a similar shifting experience and achieve even better gear changing times. Please call us to add your SMG CSL Gearbox Flash.
If you have a defective air pump, you may notice a check engine light on your dashboard, or may also notice the pump is consistently noisy for 30 seconds to 2 minutes after startup. Replacing this pump often quiets noisy startups, turns off check engine lights caused by certain codes, and keeps your vehicle running perfectly. One can expect a normal replacement cost to be in the $500.00 range.
Most racers prefer to eliminate this part for weight savings and create a cleaner engine bay layout.
NOTE: If this part is eliminated, the vehicle can only be operated for OFF ROAD and /or RACING purposes ONLY and not be operated on highways and public roads that requires all necessary emission compliance to be intact. Call us for your options.
