Invidia's R400 tuned muffler exhaust systems offer a rich exhaust note which enhances the natural tone of your car's engine. Invidia's high flow design ensures efficient exhaust flow for optimum engine performance.
Specifically designed to fill the sound gap between the Q300 and N1 system, the R400 produces a unique, aggressive exhaust tone without any harsh cabin noise (particularly at highway speeds).
3" 304 stainless steel piping throughout, with quad 4" tips. Choose between burnt titanium or polished stainless steel straight-cut exhaust tips.
Fits all 2015-2021 Subaru WRX and WRX STI.
Availability note: Supply on Invidia products has been spotty. Please call about product availability before ordering. Updated 6/18/25
For all orders exceeding a value of 100USD shipping is offered for free.
Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item.
Otherwise, standard shipping charges apply. Check out our delivery Terms & Conditions for more details.
