Phenolic Spacers
it a thick gasket(spacer) that prevents the heat soak from the engine. That heat drop will increase performance. For the NA cars every little bit helps... for FI guys it's the same but they already have a lot of power from the extra air flow. NA guys love these do the the quicker throttle responce and better overall power.
Originally Posted by Boeturbolancer
These are made to match the port and polished intakes.
btw, at $90 shipped, im in. ive had problems /w heatsoak before, anyway. And i plan on having my IM and heads matched soon, so i can kill 3 birds with one stone =)
well if your gona do a list try to get it one the first page so people dont have to look threw the whole thread, but I think theres
1.mojambo
2.AlkalineTrio124
3.rocketman
from just going threw the threads
1.mojambo
2.AlkalineTrio124
3.rocketman
from just going threw the threads


