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4 Sonic's coolant system is one of the most flawed from the factory that we've seen in a long time
your fuel system might not be as clean as you think
The 60# injectors we include in this kit will support up to around 375whp on pump gas which is more than most full mod list LSJ cars
Porting the OEM part can improve total flow slightly—but it can’t fix that imbalance
Driven BR30 Break-In 5W-30 Motor Oil Vanderhall 4 Sonic's coolant system is1 quart of Driven 5W 30 break in oil. Driven Break In motor oils are formulated specifically for Break In and provide the best foundation for high horsepower output, cooler running and longest engine life of your new, crate or rebuild engine. Also use for new camshaft installations swaps. High ZDDP levels and Ultra Low Detergent levels optimized for break in of both flat tappet and roller camshafts. Formulated to provide controlled wear to occur
US$ 139.00
US$ 125.00
US$ 48.00
