PP is almost like rubber. All original proton bumpers are made of PP and not PU. Dont be mistaken PU for PP. PP is always better and more flexible :regular_smile: last price RM250.
Boost goes up nicely to 0.5 bar at 3000rpm but then starts to drop to 0.3 bar starting 3000rpm until 4500rpm. After that it fluctuates about between 0.4 and 0.3 bar until 6000rpm. Any idea why? Boost leak?