The base seals properly with 2 o-rings just like OEM and the level indicator has 2 markings on it

2mm pipework and fit from the Catalyst section backwards (Cat-back) replacing the GPF

AR-VO-44-STRUTSBAGS

Material: crafted in high quality ABS plastics equipped with DRL LED

Mercedes-Benz CLS C257 2018 - 2021

Kit EBC Dischi Sportivi Turbo Groove e Pastiglie Rosse Anteriore MAZDA RX8 1.3 (Rotary) Cv dal 2003 al 2012 Pinza Sumitomo Diametro disco 303mm Modello_CLA (C117 Facelift) (2017-2019) The base seals properly withCar Fitment Marca MAZDA Modello RX8 Cilindrata 1. 3 (Rotary) Cavalli Da Anno 2003 Ad Anno 2012 Pinza Sumitomo Diametro Disco 303mm Posizione Anteriore