Skip advert
Advertisement

This is how to make your M135i sound like an M4

This M135i owner hacked into BMW's synthesised system to make his car sound like a 425bhp M4

Whether we like it or not, the practice of synthesising engine noises is becoming increasingly common in new performance cars. Sticking a turbocharger into the exhaust pathway and improvements to sound proofing have lead to a significant decrease in engine noise, much to the disappointment of many enthusiastic drivers. To claw back some of that aural involvement, manufacturers have resorted to this controversial system.

BMW's synthesised engine noises are played into the cabin through the car's speakers, so in theory, disconnecting your speakers should remove their influence altogether. But it was only a matter of time before someone went a step further and actually modified the synthesised sound.

Advertisement - Article continues below

>Read - BMW M135i review and pictures

In this case, a tech-savvy M135i owner has managed to hack into his system and upload the soundtrack used in the new M4. It swaps the typically smooth straight-six soundtrack for a rougher, harder voice. You can hear it in the video above.

>Read - BMW M4 review, price and specs

If you want to listen to the M135i with its factory fitted synthesiser working, watch our track battle video below. What do you think? 

Skip advert
Advertisement

Recommended

BMW M135i 2023 review
BMW M135i review
Reviews

BMW M135i 2023 review

BMW’s hot hatch is a good car, but no longer a unique one, and misses the mark for pure fun
27 Apr 2023
Skip advert
Advertisement

Most Popular

BMW i4 eDrive35 review: does less equal more?
BMW i4 eDrive35 – front
Reviews

BMW i4 eDrive35 review: does less equal more?

BMW’s cheapest i4 gets a smaller battery, less power and a £50,755 price tag – is it a worthy alternative to a Polestar 2?
12 Apr 2024
Italy bans Alfa Romeo Milano name, so now it’s Alfa Romeo Junior
Alfa Romeo Junior/Milano
News

Italy bans Alfa Romeo Milano name, so now it’s Alfa Romeo Junior

Just a few days after the Milano's reveal, Alfa Romeo has been forced to change the car’s name entirely
15 Apr 2024
BMW M5 (F90) Fast Fleet test – 9 months with the 592bhp four-door
evo Fast Fleet BMW M5 F90
Long term tests

BMW M5 (F90) Fast Fleet test – 9 months with the 592bhp four-door

It may have been faster, more powerful and more complex that any M5 before, but the 592bhp F90 also managed to channel the spirit of some of its more …
12 Apr 2024