While CTR pistons are a good option, they need to be used with caution. The piston to deck clearance is substantially reduced, so the engine should be clayed to ensure you won't have any valve to piston contact. The stock b16 rod ends must also be machined (1mm off each side) to accept the CTR pistons. It can be done and has been done, you just need to make sure all your specs/measurements are correct to avoid any problems.