GRP racing engine
Yo guys whats going on out there with the races any news on that. Well as for me I put the GRP on-road .21 on the mugen mrx4x the last engine I had got damaged. The GRP is as strong or even better then the Ninja .21 on-road. The car is running strong now with no problems. Thanks to all of you who had gave me advice on the car it is running very hard.