I want to get a muffler delete done on my 4.4. I have an X-Pipe and that's it so far, the rest is stock (mufflers). When they cut out the mufflers, I'm going to have them weld on (2x) dual tips. What is the inlet size needed? 2.25?

Here's what I'm talking about.

New Exhaust Tip Polished Dual Acura Integra Legend Honda Accord Civic 2007 | eBay

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2005 X5 4.4i Loaded