13B RE upper and lower aftermarket intake rx7 Whether you're tuning for the

Whether you're tuning for the track or perfecting your street build

Pre-machined boost port

which maximises the cooling efficiencies and disbursement of heat

or poor tuning

13B RE upper and lower aftermarket intake rx7 Whether you're tuning for the13b RE COSMO Style design and port sizing internally, weve made the engine ports on the lower match an FD REW engine due to there being larger volume of them on the market and more parts still available for them. However we have already developed a CNC port program for those running a Cosmo block and or after market billet plates with those port sizes. Additionally we have built in Semi PP ports that remain blank until you need them instead of needing