How important are these if you have a superchiller? Which ones are worth buying?

I would consider them mandatory. Think about the flow of the water to and through the intercooler. Water comes into the cooler with at least say 3/4" lines and is diverted through many tiny passages. These passages are easy to block, just like coronary arteries in the heart. I worry rightfully where I boat about organic matter, leaves twigs, grass, lake weeds. What's the chance of these things or sand being picked up? Pretty much 100% where I boat. My goal is to eliminate as many potential issues as I can.

Won't the sea strainer keep all of the stuff out of the innercooler besides sand? Does a sea strainer do the job or for the sake of it do you need both? And if so what kind do you look at buying. Thanks for the input.

Been investigating the Hardin Marine.

Anyone got any photos of the Whipple 3.3 mount model ?

Stolz is your intercooler water already going through the strainer or have it's own pickup? If it's already strained water, I think your good. The Hardin unit is my mechanics favorite, also the most pricey at 600.

Yes the water goes from the pickup to the sea strainer. Then goes into the dual stage sea pump. One stages feeds the engine the other feeds the intercooler.

Hello and thanks to those of you with good things to say about our sand strainer product. Whether you need the product has a lot to do with where you boat the water clarity. For instance if you boated in Lake Tahoe Nevada where the water is crystal clear for a 100' this product wouldn't really get much use. If you boat on the intercoastal inland water ways it's a must. Ask anyone with one and they will tell you how astounding it is the amount of sand and contaminates that are trapped by the filter.

No a sea strainer does nothing to protect your application as it only pick up larger debris. Your superchiller core is the most susceptible to clogging. The problem is once the cores get loaded with sand their efficiency diminishes to near nothing and they cannot be back flushed. The problem is most people don't even realize until their engine builder tells them during the rebuild that part of their failure was caused by detonation as the intercooler could not perform effectively due to trapped sand.

I hope that helps answer some of the questions. Once again thanks to all for your continued support