My 07 Si

[Ilya]

@Jeremiah

1stgen…I’m on the same page as you. I’ll also add that people don’t understand that the air is heated more by being compressed through the TB, into the plenum and down the runners…more than it’s heated by heatsoak as it’s hauling ass past those parts. Yes thermal gaskets do prevent heatsoak to the IM and TB, I have Hondata thermal TB and IM gaskets to drop any amount of temperature that I can and may help free up an extra 1hp on the dyno…but noone on this earth will feel the difference in their butt when driving.

I think it depends on the car.

There are dyno’s on NWP’s site for a Maxima gaining around 8hp with the spacers.