Had same problem as last guy with 257 turbo also filter touch's valve cover
Well made and looks awesome
Everything was great except they really should add in the description that the coupler provided does not fit the s257 turbo.
High quality perfect fit
got this for my turbo swap lsj great fit and top notch fitment running it with a holset turbo so had to use a 3.5 to 4 inch coupler