06-11 Honda Civic Si Thermal Throttle Body Spacer Engine Rebuild Kits Catback Design - Leaves your

Catback Design - Leaves your cat converter untouched

while the modular plenum design allows users to increase plenum volume using optional spacers for additional tuning capability

Test fit before committing to permanent mounting

LED Sequential Chasing Turn Signal

Polyurethane construction delivers durability without adding unnecessary weight

06-11 Honda Civic Si Thermal Throttle Body Spacer Engine Rebuild Kits Catback Design - Leaves yourIncrease horsepower and torque with our 3 4 inch throttle body spacer. Dyno test on a 2006 Honda Civic Si delivered an impressive 4. 5 horsepower gain at the wheels. Made from 6061 Aluminum and machined in house in the USA, this spacer is built for performance and reliability. Includes: Two thermal gaskets for heat insulation Extended stainless steel Allen bolts Anodized finish for a clean, show quality look Optional Feature: Need more flexibility? A