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This exhaust was built for a serious autocross car. The goals for
this exhaust were, in order, to save weight and pick up some power. Both were accomplished.
The Chase Race exhaust was TIG welded from thin wall 304 stainless tubing and uses
Burns Stainless Ultra-Light Mufflers
that weigh a mere 3.5 lbs each.
The result was an impressive 25lb weight savings (15 vs. 40) over the stock exhaust, and a gain
of a few horsepower in the important part of the power band.
Chase Race exhaust.
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Chase Race exhaust installed.
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Stock exhaust installed.
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On the dyno.
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The Chase Race exhaust gained a few hp and lb-ft above 4200 RPM. It lost a small
amount below that but if you're below that in a race you've already lost. Unfortunately
the dyno chart doesn't show the 25lb weight savings.
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