The STM 3" titanium catback exhaust for Evo 7/8/9 weighs in at only 10.4 pounds and is 100% full titanium. This design is available for USDM or JDM rear bumper fitment with a bare titanium or burned blue tip style.
Vehicle Fitment: 2001-2006 Evolution VII VIII IX
• Select bumper fitment in the purchase menu
More Info: Weighs 25.4 pounds less than the factory cat-back and will bolt up to your stock or aftermarket 3" cat or testpipe. STM Exhausts utilize your existing exhaust hangers and include all gaskets and hardware for a clean and easy installation.
USA made, hand crafted and beautifully constructed suitable for the street, track and shows. With a smooth, free-flowing design, it is everything you need and nothing you don't with a solid combination of performance, weight, looks, sound and strength.
The STM Titanium Exhaust is built using a 17" titanium muffler and delivers a deep, resonant sound with no raspiness.
Pictured installed with the STM recirculated downpipe, STM resonated stainless test pipe, STM standard placement exhaust manifold and an FP Zephyr.
Specs & Weights: • Weighs 10.4 pounds • Factory Cat-Back Weighs 35.8 Pounds • Save 25.4 pounds! • Full Titanium • 17" Titanium Muffler • Pie-Cut • Hand Fabricated • Tig-Welded • Back-Purged • 3.5" Tip (Burned Blue or Plain Titanium) • 3" with 2-Bolt Flanges • CNC Flanges • O2 Bung • Gaskets and Hardware Included • Bolts to Factory Cat or 3" 2-Bolt Test Pipe
Made in the USA! Lifetime Warranty on STM Parts to the original purchaser against manufacturing defects.
Based in West Chester, PA, FAST WC is known for building and tuning real-world performance cars, not just listing parts online.
We sell what we run. Period.
STM Evo 7/8/9 3" Titanium Cat-Back Exhaust
$1,699.00
Why Drivers Choose FAST of West Chester
I can't recommend this place enough. Being able to trust a shop in the performance world is big. The 2hr drive to get there, is worth knowing the job will be done right. Very happy to have found this shop, to support my builds going forward.
Donald Wojnar
I recently had the pleasure of working with FAST of West Chester for some performance upgrades on my 2022 WRX, and the experience was nothing short of exceptional. I opted for a Borla S-Type exhaust and Cygnus Coilovers, and the team at FAST nailed the installation, fitment, and setup to a T.
Adam Cranston
The team at FAST are excellence in every way. First, I consulted with Dave on mods for my HPDE track car. He listened and advised me on the best parts & mods to achieve my goals. He was patient & gave me space to research the options presented & worked with me through several changes before we built. Second, the build execution was flawless, proper heat shielding, bracing and poly everywhere. All components worked as advertised.
Bryce Budd
This place has been my go to shop for all things Subaru. From simple service to performance parts and tuning, they have been top notch.
William Brunell
Excellent shop. They installed a Cobb Stage 2 DP and Whiteline Sway bars and end links on my 2013 WRX. The work was done right and clean. The estimate was accurate. They were very knowledgeable, friendly and gave me the straight scoop on exactly what I was getting for the money and what I needed to get where I want to be with it. I'd recommend them to any car enthusiast.
Devin Greco
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Real Answers From Real Builders
We install and test many of the parts we sell — so you’re getting real-world answers, not guesses.
Does it come with a warranty?
Most products we carry include a manufacturer warranty. Since we work with top performance brands, warranty coverage can vary by product. If you have questions about a specific item, reach out — we’re happy to help.
Do you offer installation help or advice?
Yes — we don’t just sell parts, we install and tune them too. FAST of West Chester is a real performance shop, and we’ve worked hands-on with many of the products we carry. If you have questions about fitment, installs, or building your setup, our team can point you in the right direction.
How fast is shipping?
Many of our products ship the same day or next business day, depending on availability. We work hard to get parts out fast so you can get your build moving without delays.
What’s your return policy?
Returns for exchange or refund are accepted within 30 days of receiving your order. Items must be in new, unused condition and in original packaging. If you have any questions, our team will help make the process easy.