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order your AMS Subaru EJ WRX / STI Intake Manifold now
An integrated urethane bump seal insures tight
Filtration Efficiency: 99
A urethane plug is also included if you wish to block off the auxiliary air inlet
which translates into more horsepower and torque
Invidia Q300 Turbo Back Exhaust Engine Bottom End Internals order your AMS Subaru EJINVIDIA Q300 CAT BACK EXHAUST Tuned Muffler For optimal flow and enhanced sound Invidia's Q300 tuned muffler systems provide a quieter exhaust sound than both the R400 and N1 Invidia Exhausts. While still keeping volumes in check, their high flow design ensures efficient exhaust flow for optimum engine performance and prevents sacrificing any increases to power or torque. The Q300 mufflers offer a rich, deep, sporty exhaust note which enhances the