We are coming back to run Sprint Week and some local shows the weekend before it starts and I need to know what tracks if any require you to run mufflers.
Thanks in advance for any information.

Bloomington and Lawrenceburg

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Always wondered what the horsepower difference was muffler vs. non if at all there is one?

11" Shoenfield will work at all of them. I don't notice a difference in power but you might ask someone who isn't usually last qualifier.

Thank you for the commitment it takes to come to Indiana for SW!! We really appreciate the effort and it is nice to see some of the talent and cars from out west.

Thank you Casey,Kevin for the information it's much appreciated.

at Lawrenceburg, any type of muffler is ok, most locals run a insert. Looking forward to seeing you in Indiana!!

The JW Mitchell Motorsports team with Matt Mitchell driving will be heading east after running Perris on Wed.night on July 4th,we're planning on running Lawrenceburg on the 7th,Kokomo on the 8th and then Putnamville on the 12th,then the full SprintWeek seris before heading home to race at Perris again on the 28th.

We're all excited to get back there and see some friends we only get to see a couple times a year and to do some serious racing.I would also like to say Thank You to all of the fans who support all of us racers during SW as it takes a big commitment from you as well to make all of the races,it's great for us to be able to showcase our talents in front of such passionate and knowledgeable fans.

If you get a chance please stop by the JW Mitchell #37 pit after the races and say hi,looking foward to meeting some of you fellow Sprintcar addicts.