Hello, my nissan pathfinder has about 171000 miles on it and it is starting to sound sick. I am going to have a bunch of internal parts replaced so it will still be running in the future. I want to replace the crankshaft, cams, pistons and rods, and heads. I am wondering if anybody has any suggestions for which brand I should buy. I am looking for high performance parts that will increase my horsepower and torque for offroading. If anybody that knows about great parts for the pathfinder please reply to this post.