281-593-1440 ... For Sale X275 BB nitrous Coan bolt together convertor. A lot of testing in this convertor combo. Convertor has run 4.60s everywhere. Steel top, billet aluminum base. Convertor will also work great for any nitrous bb up to 632. Based around 1900HP has turbo splines, less than 30 passes, very nice unit.. Paid $2890. First $1600 gets it delivered. Call TRE Taylor Lastor 281 593 1440.