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post #187 of (permalink) Old 10-29-2018, 10:18 AM Thread Starter
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Originally Posted by Youngfrankenstein View Post
Getting the long tube & real tune bug. On page 8 of this thread, the OBXs are kind close to the JBAs. Were the OBXs results w/2.5 exhaust and the JBAs with 3? Or were both with 3?
Obx can only use 2.5 exhaust. They gained 41hp and 73tq to the rear wheels over stock.

The jba reduced et by .9 where the obx reduced it by .4
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