Missing Exhaust mod after reinstall

I had this mod that added loud exhausts. It was some two letter name like RK or something and the exhausts added pops and bangs and was available on every car. The cars that had it that I have saved no longer have it and I cannot find the mod anywhere. Anyone have any idea what it was? It was not JK's tunable exhausts. It was a standalone mod that was configured. This is config data from one of my saved cars
"vivace_exhaust_exit":"vivace_exhaust_exit_double",
"vivace_exhaust_i5_2.5_petrol":"engine_I5_exhaust_st1_RK",
"vivace_exhaust_tips":"vivace_exhaust_tips_alt_black",

See it is RK! Don't see anything on their profile though.

 

https://www.beamng.com/resources/2-...y-customizable-engines-20-enginestypes.10583/
this?

 

Nope, I have that installed. Funny thing is that I had this same problem a few months back. But then I reinstalled windows and did not remember to back mods up. But I did not mind since the game was running slow. But now I lost the damn exhaust again! Thanks for the reply though.