Quote:
Originally Posted by Mike_ZN6
It sounds like you have actually done some testing. What is the quantifiable difference between the black and red intake intake manifold? Is it actually worth it to swap to a red one? Considering the price of a used red intake manifold is about $300.
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This a dyno from Delicious tuning. The only change was adding a MY17 header and intake manifold to a MY15. The car already had a drop in filter and intake tube...
These are avg runs I got from virtual dyno. Yeah I know virtual dyno, but its better than an opinion with no substance behind it right? Same stretch of road, full tank of E85, HKS catless header, Greddy snorkel scoop, drop in Blitz filter, Mishimoto intake tube, 2.75" overfront pipe, Perrin catback and SAE corrected for weather conditions of that day. The numbers aren't as important as the trend from the runs of course. When I graphed raw MAFv it came out just like below as well.
I don't feel a MY17 IM by its self is worth it past looks. However if you are willing to go a step farther it is certainly worth it.
A 2mm bored over OEM TB is only $160 via Maxbore. My IM was port matched to the TB exit of course. The expensive step is the extrude honing at $550+.