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many swap headers install a single O2 bung in a position that places the end of the O2 sensor where it can rub against the floorpan
Even to this day
this precision-engineered upgrade delivers increased friction
enhancing both horsepower and torque
no further parts are required
Spoon Sports Rigid Collar - Honda legend KC2 - Rear clearance10 many swap headers install aDeveloped 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
