iVE had westach. and SPA,I would definetely go with Westach,from Geno's. The SPA's always have something wrong with them,out of the 4 i have there's always one that isnt working right,now its the EGT guage. With the westach,they always worked no matter what,the westachs are much cheaper ,and more reliable,hands down. if you gotta have the cool looking SPA's,plan on them giving you trouble.