I purchased a custom built engine from this company back in the summer. I was promised a trouble free experience, 1 year/100, 000 mile warranty, and a healthy gas mileage improvement over my old engine. Now after 6 months and $10, 000 dollars later after fixing things that I paid this company to replace I am having major troubles even getting the owner to answer and/or return my calls. I have had to swap the turbo on his engine 5 times and for some reason I am still having problems. I paid well over 50k to have a professionally built... read full review »