STM's Drag RS Build! Time to go fast.
It seems there is little to no gain from testing that Buschur did, but maybe at higher power levels there is some gain. Quote from Buschur:
Yes, I did do the testing this winter on my RS. My car was making 640'ish on our dyno when I did the testing. The car lost a slight amount of low/mid range going to 3" over the 2.5" and gained nothing up top.
My car is currently set up with 2.5" pipes and just ran 9.4 at 155 mph in full street trim with a 35r.
My car is currently set up with 2.5" pipes and just ran 9.4 at 155 mph in full street trim with a 35r.
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Justin at STM
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