Ep 6. The Muffled Mess-Up/Return to Lender

The Muffled Mess-Up: GT's muffler is VERY noisy, but he doesn't want to part with it - it was given to him by his grandpa. It makes so much noise that it interferes with the racing, and when it falls off during a race, it even creates a hazard! GT learns that changing the muffler doesn't mean that it, or his grandpa, is any less important. Return to Lender: Strut borrows tools and gear from GT, and reneges time and time again on his promises to return everything - causing GT to have to pull out of two races. When GT borrows gear from Strut, Strut realises the importance of returning borrowed items, and keeping your promises.