Tech Guides
Buyer's Guide
PRL HVI Intake for Civic Type R — Street MAF vs Race MAF Buyer's Guide
The PRL HVI ships with a choice of two billet MAF housings - Street MAF and Race MAF. Get it wrong and you'll either leave power on the table or trigger check engine lights. Here's exactly how to c...
Intake
TGV Deletes Explained — What They Do and When You Need Them
What are TGV deletes and when do you actually need them? How removing the factory tumble generator valves improves airflow, throttle response, and reliability on EJ-powered Subaru WRX and STI builds.