IHRA Pure Stock legal muffler suggestions

[Myron Piatek]

I have TTI 1 5/8"/1 3/4" step headers with their 3" X-pipe and Dynomax Ultraflo mufflers ending at the rear end housing on my car. Every indication was that I picked up ET with the combo, especially after removing the extra 60 lbs from elsewhere in the car to get back down to minimum and playing with the jetting. I might try their bullet-style in the future. But I'm not sure exactly what is legal for Pure Stock without looking it up.

This is going from open header with collector extensions which I ran for a couple of years before adding the exhaust system.


*** Oops! Just got home and looked up the rules - no straight-through mufflers in Pure Stock.
But the X-pipe should be worth looking into.