Hi mate, any pipe designed for a .12-.18 size engine will fit, it sort of depends on what you are looking for. Some are designed to boost low end while others are made to give a top end advantage. I have a H.A.R.D. Shark pipe fitted to my FF with the stock CEN manifold. If you are looking for alternative manifolds then AE and Dynamite both make them in that configuration for the nitro TC3 touring car. Hope this helps a bit.