It will help the under hood temps greatly. It will be a unnoticeable performance increase but the lower temps will keep the intercooler piping cooler and that will help. I've got one to go on my CRX and my last turbo car the manifold, turbo(hot side), downpipe, and all intercooler pipes were wrapped and it was like the car wasn't even running after a hard highway run. You could put your hand on the manifold and it was harm. .

Well worth it for just the lower temps.