AFE: Twisted Steel Down-Pipe (Race Series) Honda Civic / Civic Si 16-20 I4-1.5L (t) corvette headers I-beamed spokes

I-beamed spokes

and a vent tube to direct the purged nitrous out of the solenoid

This stage 6 package requires a tune

Here are some specs of the porting option:

3L Gas 2001-2007 Toyota Highlander L4 2

AFE: Twisted Steel Down-Pipe (Race Series) Honda Civic / Civic Si 16-20 I4-1.5L (t) corvette headers I-beamed spokesRace Version: This down pipe was designed as a "Race" version for added performance and a more aggressive sound. Factory Mounting Locations: The down pipe mount directly to factory mounting locations and includes hardware for a hassle free installation. Tapered Design: A unique 3" tapered design is used to increase exhaust velocity and increase usable torque. This means more aggressive throttle response and increased passing power. Factory Style