MRX Performance high performance valve springs are made for the 4JJ1 motor and will let you run higher boost with no problems.

This allows for more hp to be maded with bigger turbos and other mods,

This is also a great add on for anyone rebuilding the head of the car.

MRX Performance are known very well for high quality products

 

MRX 100 PSI VALVE SPRINGS 4JJ1

AU$440.00Price
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