You should port and polish the inside of the plenum now. I did that a few weeks a go to mine, it was pretty fun, dyno test show 4.9 HP and 11 torque if I remember right. I used my dremel, make sure that you get ride of the bead on the top side that is what gets ride of the turbulence, make sure you where a mask though, I didn't, and I was coughing up silver mucous for a few days. I think I will pull my plenum off a gain and polish the outside. That looks nice. MAybe I should do that to my procharger too.
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04 Cobra
densecharger CAI
BBK off road X pipe
Custom Electronic Exhaust cut outs
Tuning via Diablo Predator
Ported and polished Throttle body and plenum
Line locker (for the smoke shows)
Stock boost
412 rwhp 379 rwtq
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