Rival Performance Hardware/Software 420BHP Tuning Package - BMW M235i F22

Rival Performance now offer this hardware and software package which takes the BMW N55 engine up to 420BHP and 640NM! Rivalling its B58-powered stablemates for both performance and character.

The BMW N55 engine is often overlooked when compared to the newer BMW B58 engine, and whilst the B58 is known for becoming a monster with just a couple of easy mods whereas the N55 is considered less tuneable, which doesn't have to be the case!

The N55 engine is limited by its packaging, running a tiny intercooler resulting in a conservative quoted 320BHP and 450NM.

By installing a couple of performance hardware upgrades, paired with TRS Performance software solution, the BMW N55 engine goes to 420BHP and 640NM, rivalling its B58-powered stablemates for both performance and character!

A must-have Hardware/Software Tuning Package upgrade for the BMW N55 engine.

INDEPTH PERFORMANCE KNOWLEDGE & BACKING:
TRS Performance found that the key limiting factor on the BMW N55 engine is factory/stock intercooler is completely unchanged from the lesser models, resulting with incredibly high intake temperatures. TRS Performance ran a completely standard car on the dyno and observed 63 degree intake temperatures. When tested on the road the results were even worse! Road/track data logs showed a sustained 68 degree intake temperature over a 3rd, 4th and 5th gear acceleration despite the car having high-speed airflow.

Not only is the is detrimental for making power, but when used hard on track, the engine protection systems would limit power further due to the temperatures being too high even on the road. To manage these extreme temperatures was to explore the intercooler options, one that offered an easy installation and OEM fitment, meaning no body modifications, and the ability to revert the car fully back to standard with ease, should there be a need.

After conducting exhaustive research, TRS Performance found that the AIRTEC N55 Intercooler fitted the bill perfectly, substantially lowered intake temperatures, and offered easy fitment and OEM-like installation. 

With an intercooler only, intake temperatures were more than halved compared to the factory/stock intercooler, with a peak of 28.5 degrees on the dyno and a staggeringly low 26 degrees on the road during the same sustained acceleration 3rd, 4th, and 5th gear pull.

With the engine cool, it was only right to make sure the rest of the hardware was up to the task, so TRS Performance also opted for NGK Spark Plugs and a Performance Panel Air Filter. 

Because of the engine upgrade, TRS Performance also thought it was only right to sharpen up the gearbox to match the engine, that's why they've included XHP STG3 gearbox tuning as part of the Package! (you can also opt for XHP STG1 or STG2 if you prefer) Manual cars don't require gearbox tuning the package price is reduced. 

TRS Performance have been tuning BMW engines for nearly 10 years now, and it’s no surprise they’ve become rather good at it. Everything is custom tailored to both the car & driver's requirements, and created completely in-house within the dyno cell.

When tuning the BMW N55, the goal is to give the N55 that much-needed performance and excitement of a true M engine, without sacrificing any drivability or reliability you’d expect from a BMW. Whether you’re enjoying a B-Road blast or completing lap after lap on circuit, your car is going to perform!

RESULTS:
The results are 420BHP and 640NM (peak torque dependent on owners wishes), the most impressive aspect is not just the peak numbers, but the way the car drives. Torque is progressively fed in to help get the power down and get away from the spikey feeling. Peak power climbs to a new peak promoting you to hold onto the RPM long after the factory/stock car plateaued and fizzled out. This is the most effective way to transform the driving experience of the BMW N55 engine into something you’d expect from a full-fat M car!

What's included?

• High Flow Performance Panel Air Filter
  
• AIRTEC Motorsport Intercooler
• NGK NGK Iridium Spark Plugs
  
• AIRTEC Boost/Charge Pipes (optional)
  
• XHP Stage 3 Gearbox Tuning (automatic transmission only)
  
• TRS Custom Engine Tuning
  
• Performance Part Labour Installation
• All Work Carried Out In The Rival Workshop & Dyno Cell 

note: image is for illustration purposes and may differ on delivery

Information coming soon.