Nahhh kiid. My reasons are 100% valid.
Remind me when my jetta is running. Ill make a set of aluminum IC pipes and a set of stainless. put it on the dyno and take 3 pulls for each. thermal read the under hood temps for each run… then compare results to prove it.
stainless is more your wrong:
$10.50 a foot 304 stainless 2.5" dia 16ga
VS
$6.75 a foot 6061 2.5" dia 16ga
http://www.mandrel-bends.com/catalog/tube-pipe-bar-38/round-tubing-16-gauge-64/6061-aluminum-72/2-50-od-16-gauge-aluminum-straight-tube-372.html
annnnd stainless filler rod is more than aluminum per lb by a lot. More argon is used to tig stainless because it must be post flowed while it cools, and back purged inside so you dont ingest crap from the inside of the weld into your motor.
you just are incorrect here.