I removed my uprated metal one for the Forge TIP!

If you read why the TIP's are replaced then you'd understand why the Silicone TIP's are better, they have a smooth inside aiding airflow, a larger bore, and larger internal diameter.
 
Ive just got a Forge TIP for mine.

Why did I choose this one? Becuase its been proven time and time again that this is a good product and Forges customer service is legendry.

Do a search you find loads on this, been covered many times:)