With so many catback options available, our goal was to create a unique, refined sound in an extremely high quality system. We've been casually referring to it as the gentleman's catback around the shop, to ensure that our mission wasn't lost in all of the craziness. We also wanted to produce a single system that would fit as many models as possible. Using a unique hanger design and by including a set of four custom polyurethane hangers with each kit, we've been able to fit all EJ and FA20DIT WRX and STI sedans from 2011 to 2021.
Quick Specs
Custom dual outlet mufflers - dual perforated tubes offer quieter, more refined tone
Quad 3.5" double-wall, angle-cut tips - our most commonly requested configuration
Resonated or Un-resonated options - the choice is yours, although we recommend resonated for the FA20DIT and un-resonated for the EJ
304 Stainless Steel construction - genuine American 304SS material to withstand the elements and abuse
1/2in thick flanges - all 7 flanges are laser cut from the same 1/2in thick stainless plate for perfect sealing, easy installation and extreme durability
Flex section - your motor and mufflers are both mounted using rubber or poly mounts and can move independent of one another - if there isn't a flex section or donut gasket allowing relative movement, there's a much greater likelihood of damage to your exhaust or turbo
Custom polyurethane hangers - these hangers keep your exhaust where it needs to be, freeing you from rattles, melted bumpers and so on
TIG welded - each catback is hand TIG welded just across the hall from the engineering offices that they were designed in, ensuring craftsmanship that does our Lifetime Warranty justice
GrimmSpeed Lifetime Warranty - buy knowing that we stand behind our products and customers 100%
Why GrimmSpeed?
Sometimes, this explanation is long and technical, especially where performance is concerned. This time, it's simple. The GrimmSpeed engineering and manufacturing teams are known for designing and producing products that use high quality materials, offer perfect fitment and superior craftsmanship and are durable. These catbacks are no different. If you're tired of your catback rattling against heat shields, tips hanging too low, crooked or uneven, exhaust that's too loud or materials that are rusting or failing, then we have the solution for you. Beyond the product (and it's Lifetime Warranty!), the GrimmSpeed customer service team is ready to help you with any questions or concerns you might have.
We stand behind our products 100% and our goal is to offer you a customer experience that makes you want to stand behind them as well.
Fitment
2011-21 Subaru WRX Sedan
2011-21 Subaru STI Sedan
Included Components
2x Muffler Section
1x Y-Pipe
1x Un-resonated Midpipe
4x Two-position Poly Exhaust Hangers
ALL Gaskets and Hardware
2x GrimmSpeed License Plate Frame
1x GrimmSpeed Decal
GrimmSpeed was founded in 2006 to provide customers with innovative and highly engineered aftermarket products. On a more personal level, we are a group of car enthusiasts in the lovely city of Minneapolis, Minnesota who are absolutely passionate about what we do. Our bread and butter started out anything Subaru. However, after growing our team and engineering expertise, we started developing products for Mitsubishi, Ford, MazdaSpeed, and Hyundai markets. We are a true garage start-up (single stall townhouse garage in Maplewood, MN) and we've been lucky enough over the years to be able to turn it into exactly the business we had dreamed of....actually, much more. We have a wide breadth of product offerings including: intercoolers, exhausts, intakes, gaskets, engine pulleys, phenolic spacers, boost controllers, and many more.