Originally Posted by 335xiRT1
its a weak factory o-ring gasket thats been known to leak.
A silicone tb connection with a t-bolt clamp makes a better and tighter seal.
O-ring on my ish is holding just fine
AND an O-ring gasket wouldn't be a difficult part to find a higher quality gasket. If the ER CP was such a flawed design (or other similar TB-connection designs like the AA or BMS CPs), then explain to me why it's being used on several very-high HP + purpose built track cars