Invidia R400 Cat Back Exhaust Water/Methanol Kits The organic carbon fiber lower

The organic carbon fiber lower ducts allow the heat to transfer to atmosphere instead of soaking into the intercoolers

frequency-based mass airflow (MAF)

Filter replacement

and 1000cc of flow

Retains your factory exhaust tips

Invidia R400 Cat Back Exhaust Water/Methanol Kits The organic carbon fiber lowerINVIDIA R400 CAT BACK EXHAUST Invidia's most popular exhaust system. Specifically designed to fill the sound gap between the Q300 and N1 system, the R400 produces a unique, agressive note while minimising harsh cabin noise (particularly at highway speeds). The R400 muffler was designed using years of experience from Invidia's engineers to allow the perfect balance between unrestricted exhaust gas flow and sound dampening. This exhaust system will