These engine mounts replace the OEM top and lower engine mounts. This combination will reduce 90% of wheel hop and engine movement to improve shifting, traction, and prevent damage to the intercooler hoses and exhaust systems due to excessive engine movement. Torque Solution offers a "Lifetime Warranty" on all of their billet mounts. These mounts have less vibrations when compared too the other aftermarket mounts. Take a look at the amount of urethane we use on each mount. These use 50% more urethane than the competitors. This combination of material will give you better 60fts and e.t's. These are the same mounts in the fastest world challenge Neon SRT-4's in the world. Get the same performance that the fastest have for a fraction of the cost of the competitors!