Good Bye Flowmasters!
These are the ones I ordered. 2.50 inlet and outlet. Off center inlet and outlet. I chose the offset outlet because I want to run tail pipes up over the axle and dump right near each corner of the quarters. The tail pipes might kill some of the noise also. The pipes will not be seen unless you crawl under the car. I'm like John I have heard enough of the Flowmasters 40s. I could have went with the quieter Flowmasters but wanted a fiberglass packed muffler and also try a different brand all together. The flow results show that the Dynomax Ultra "welded" out flow the Flowmasters is another reason.
The mail in rebate is a good thing going right now... so I took advantage of that.
http://www.summitracing.com/parts/WLK-17222/