![Amazon.com: MBRP GP290022 XP Series 5" ID Inlet/Outlet 31" T409 Stainless Steel Single Muffler : Automotive Amazon.com: MBRP GP290022 XP Series 5" ID Inlet/Outlet 31" T409 Stainless Steel Single Muffler : Automotive](https://m.media-amazon.com/images/I/51XcGp3PWTL.jpg)
Amazon.com: MBRP GP290022 XP Series 5" ID Inlet/Outlet 31" T409 Stainless Steel Single Muffler : Automotive
Detroit 12.7 Dyno Test and Tune | Here's a video of this newly restored KW W900 on the Dyno. It has a Detroit Series 60 12.7 engine with 300,000 miles. We were
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