Anybody with Dynatech headers do a before and after dyno test? I am going to guess they are worth at least 20 rw hp. But I would like to see some real world dyno numbers if anyone has them. Thanks.
PS - any vendors actually have the Dynatech Magnum headers in stock. I called around today and couldnt find any place that actually had a set in stock including Dynatech.
No, that was a strictly stock baseline vs stock with just headers, that was still with true stock catback, those we run on the same day on the same rollers