I bought a cheap heat exchanger on Ebay for $149.00. It seems to work well during our hot *** weather here in North Fl. I took a couple of pics for yall to see. I had to use some Goodyear anti-kink coil doohickies to prevent one of my hoses from kinking, but otherwise a great buy for 150 bucks. I threw on a Johnson pump and isolated my cooling system while I was down there. The pump was new on Ebay and only 85 bucks! Almost forgot,the xtreme K&N filter is very snug, but it fits.