This is a set of 16 Brian Crower Valvesprings and Titanium Retainers for Nissan SR20/SR20DET Engines commonly found in the Nissan Silvia overseas and swapped into the Nissan 240sx in the states. This also works for the non turbo SR20 that came in the Nissan Sentra and other cars. These are single wound springs with fully CNC'd Chamfered Titanium Retainers. These valvesprings and retainers will reliably allow your engine to rev high without the worry of part failure, valve float, or coil bind.
Brian Crower is a fairly new company in the Cam and Valvetrain industry, but has quickly made a name for itself for providing quality parts at a reasonable price (a concept thats hard to find in today's market.) We have tried Brian Crower Cams and Valvetrain on several applications at our own shop and they have proven themselves to be well worth the money every time. We suggest Brian Crower Valvesprings and Retainers and actually use them in some of our very own cars.