I installed these one's before the Edmonton Dyno Day a couple years ago and it was the only real change performance wise on my car. Looks like they are discontinued now. I haven't had any issues with idle or anything yet either (Knock on wood). https://www.specialtyz.com/robz-62mm-throttle-bodies.html.html Gained 22whp and 26wtq over the previous dyno which was done by SZ also. Greg from SZ told me it was probably because of the TB's. But, I also spent a bunch of time working on boost leaks that winter. So who knows really. Worth $800? Probably not, but they sure look pretty.
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