Brakes
Engine
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
Exhaust
Cat-Back vs Turbo-Back Exhaust — Which One Do You Actually Need
Cat-back or turbo-back — which one do you actually need? We break down power gains, cost, sound, and whether upgrading in stages or buying the full system makes more sense.
Exhaust
Stainless Steel vs Titanium Exhaust — Is Titanium Worth It?
Is titanium worth the extra cost? We compare weight savings, sound, durability, heat management, and real pricing between stainless steel and titanium exhaust systems.
Engine
The Complete Guide to Upgrading Your WRX & STI Exhaust System
Every component of the WRX and STI exhaust explained — headers, downpipes, cat-backs, and turbo-backs. What each upgrade does, what power to expect, and what supporting mods you need at each stage.
Engine
Which Blouch Turbo for Your WRX or STI? Complete Dominator Comparison Guide
Choosing the Right Blouch Turbo for Your Subaru
Upgrading the turbo on your WRX or STI is one of the single biggest power modifications you can make — and Blouch Performance Turbo has been the go-...