Stock manifolds, hiflows, straight pipe, and the arrow pcm warranty delete.
Video clip of revs and acceleration. (Pardon my granny shifts. Was driving with 1 hand, cold corsa tires, in 9 degree weather.
I am so glad i did this experiment. I noticed zero drone at any rpm. Saved myself $1300 on an exhaust and a lot of weight. Straight pipe is only slightly louder than exhaust. Your neighbors wont be pissed.
Muffler delete was less than $50 and an easy DIY.
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