HPI 1416 SCREW M3X15MM FOR CYLINDER HEAD (4PCS) FOR NITRO STAR 21BB ENGINE

HPI 1474 IDLE ADJUSTMENT SCREW W/ SPRING FOR NITRO STAR T-15/21BB ENGINES

R/C Car HPI Racing Firestorm 10T 1/10 2wd Nitro Stadium Truck Original Box

HPI Trophy 3.5/4.6 Nitro Engine Mount Set With Bolts For 1/8 Nitro RC Buggy

HPI Low Speed Needle Valve for 21BB 25 3.5 F series engines P/N 1482

3D Nitro Engine Display stand for .12, .15, .18 RC Car 1/10 HPI Nitro Star G3.0

Nitro engine Air filter. 1/8th RC Blue aluminium. - Extra Fine Foam, HPI Kyosho

Exhaust Muffler Pipe Kit for 1/8 Nitro RC Car HPI HSP Redcat SH GO 21/28 Engine