Quote:
Originally Posted by synolimit
Boom!!!!
As promised. stock header and cats with a muffler that bends into the mufflers then bends out to the tips vs garage line LTH (looks like a eBay obx header), my Helmholtz welded in at the x pipe and straight pipes.
No tune, still running rich! 13hp, 17tq peak, 18-19hp, 11-17tq mid range.
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Not bad gains. How much do you think you picked up with it being 20 degrees cooler on the second run? Also, what's with the dip at 5200rpm or so? it wasn't there on the stock run.