thanks essam but i was not talking about that piece.

I was talking about the pieces highlighted by the red arrow in this link:
X5world - View Single Post - How to Properly Install OEM 4.8 Chrome Exhaust Tips on 4.4 Pipes

since my exhaust is single and not dual, i need something to weld onto the 4.6 tips.

how did you weld your tips on?

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