aFe Differential Cover Oil Level Sight Glass (46-00001) 1663 The XClutch carbon series is

The XClutch carbon series is designed to offer the highest heat capacity and is designed specifically for high horsepower race cars where mass and inertia are critical

Includes ARP rod bolts for secure clamping force and reliability

5" turbo-back single midpipe

All of the end caps are made with an ultra high-strength nylon composite formula

aFe Differential Cover Oil Level Sight Glass (46-00001) 1663 The XClutch carbon series isRear Differential Cover Oil Level Sight Glass (46 00001) by aFe. aFe Power differential covers come with the option to run a oil level sight glass to visually see how much oil your differential cover has at all times. Factory and most aftermarket differential covers do not allow for this option which leaves you guessing on your fluid level. Don't be caught with low oil on your differential, or your up for a costly repair! aFe Power has got you