K-Tuned 8th Gen 3" Short Ram Intake - KTD-SR8-30F Bosch LSU 4.9 Wideband O2 Sensor You can purchase the fitting

You can purchase the fitting on the pump alone if you are doing a custom setup

MATERIAL Carbon Fiber APPLICATIONS 31-32mm Fill Necks MAXIMUM PRESSURE (PSI) 19 NOTE Radiator Cap constructed from hand laid carbon fiber----Fits Most Import Vehicles----This product will not fit on stock KTM Radiators

The five-ply silicone couplers also bear the COBB logo and are available in blue or black to best match your existing engine bay modifications

it comes at the price of transient response

K-Tuned 8th Gen 3" Short Ram Intake - KTD-SR8-30F Bosch LSU 4.9 Wideband O2 Sensor You can purchase the fittingApplication: 06 11 Civic Si Features: * Available in 3. 0" and 3. 5" piping Notes: * Flashpro or KTuner is REQUIRED * Does NOT fit base model * Battery tie down not included * Flashpro is required and you'll have to switch over to a MAP based tune if you are using the 3. 5" pipe * Comes with coupler for stock TB only. If you have a different size TB you will need to order an additional coupler. * Only available with regular filter. V Stack Combo no