Deadgame28

Guys, I'm replacing my stock resonator with a Dynomax one. I looked through like 25 pages of threads concerning the model numbers. I have a base TL and I need to know which Dynomax fits. I see in some posts where guys say to order model #WLK-24215. It's 2.5" in and 2.5" out. I see in some other posts where guys are getting model #24234, which is 2.25" to 2.25". I've just ordered the 2.5" this morning. Did I get the wrong one????