Spoon Sports Rigid Collar - Subaru Sambar, Dias S321B, S321Q, S331B, S331Q - Front 51321-S84-A01 Each manifold is CNC-machined for

Each manifold is CNC-machined for a precise fit

You can also use them with low down springs

Not only is it really effective

Typical gain: +8 hp / +20 Nm (dyno testing showed Stock Airbox 322 hp

The blade shape and the number of turbine wheels have also been enhanced and diameter modified from 47 to 52

Spoon Sports Rigid Collar - Subaru Sambar, Dias S321B, S321Q, S331B, S331Q - Front 51321-S84-A01 Each manifold is CNC-machined forDeveloped by Spoon Sports, the Japanese Honda tuning specialists, Rigid Collars are precision machined aluminium rings that lock your subframe to the chassis. Factories drill the subframe bolt holes oversized so components drop in fast on the production line, and that clearance stays for the life of the car. It leaves the subframe sitting a fraction off centre, dulling steering response and letting vibration through the floor. Fit a set and the bolts