Add a brutal exhaust note and slim down your WRX or STI’s curb weight with Tomei’s Titanium Cat-Back Exhaust System!

Highlights:  

• Main Pipe Diameter: 80mm 
• Diameter (tip): 115mm 
• Exhaust Noise:  
• GVB TESTED @ 4800rpm 
• WITHOUT INNER SILENCER 105db 
• WITH INNER SILENCER 96db  
• Features two sound level options 
• Lightweight titanium construction 
• Drop-in replacement for factory cat-back  

Uncompromising Performance for True Enthusiasts:
The Tomei Expreme TI Titanium Cat-Back Exhaust System is a pinnacle of high-quality engineering, designed for true competition use without any compromise. Crafted from only the finest Titanium grade materials, this exhaust system is a testament to Tomei's commitment to excellence. The racing layout design, with as few bends as possible, ensures optimal exhaust flow, maximizing torque and power gains throughout the entire powerband.

Brutal Exhaust Note and Lightweight Construction:
Transform your 2011-2021 WRX or STI into an attention-demanding beast with the Tomei Expreme Ti Titanium Cat-Back Exhaust. This complete cat-back system not only unleashes a ferocious and aggressive exhaust note but also shaves off excess weight, enhancing your vehicle's performance. Crafted from real Titanium, the kit offers the durability of stainless steel while significantly reducing the overall weight compared to stock and other competitors.