Im looking to replace my Base TL with new muffler tips. Ive done some searching and found most people use the "triple chrome dual tips" but they are no longer in production. Im looking for a set of dual tips that can attach the the stock mufflers - or even a 2 single 4inch tips. Im not sure on the measurements i would need. It looks like we can fit no wider than 7.5in but what about the length?

 

You are best off going to a trusted muffler shop that has many choices of tips and having them customize something up for you.