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Always the correct part
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Mounting, Balancing
Free shipping on all orders over $500 *
The Injen Performance Cat-Back Exhaust System for the 2015-2021 Subaru WRX and WRX STI was designed from the ground up to compliment the aggressive styling and blistering performance of these sporty sedans. Our custom dual muffler design hones the tone of the engine into an ear-pleasing symphony. Purposefully delivering a crisp, clean, deep rumble at idle and an aggressive roar when you’re pushing the limits. Manufactured from only the highest grade 304 stainless-steel - from the flanges to quad titanium look tips - for the highest level of tensile strength and rust resistance. The premium polished finish on the mufflers is sure to impress anyone curious enough to peek at the undercarriage and the burnt titanium look exhaust tips offer superb aesthetics that perfectly compliment the sound of the system itself.
We design every performance product with ease of installation in mind. On the SES1207TT we’ve included V-Band clamps and flanges for the simplest, quickest installation possible. No need for any cutting, drilling, or modification of the vehicle to complete installation. The system uses all factory mounting points for simple and convenient placement and compatibility. To increase performance, we opted for a stepped piping design that keeps the flow rate consistent throughout the length of the exhaust. Keeping the flow rate consistent not only adds performance but also helps keep the tone of the exhaust where we designed it to be throughout the rev range.
An aftermarket exhaust system is one of the simplest modifications you can make to your vehicle that will add both power and personality to your ride. We make choosing an exhaust system easy with our superior build quality, tone, and performance. All protected by the world renowned Injen Limited Lifetime Warranty.
We offer FREE Ground Shipping anywhere in the Continental U.S. 48 States (excluding p.o. box addresses) for most wheel and tire orders over $500. Products may be shipped via Fedex, UPS, RLCarriers, etc. Due to the nature of ground shipping, multiple packages may arrive at different times. Usually within a few days apart at most.
As long as the product has not been installed, you can return it to us within 14 days of delivery. This includes, but is not limited to, unmounted wheels and tires, suspension, and any other parts that are not custom made to your vehicle. The product MUST be in BRAND NEW RESELLABLE CONDITION and MUST be in ORIGINAL MANUFACTURERS PACKAGING. For returns, you must first call and get an authorization from us, so that we can document the reason for its return. If you do not get this authorization, we will not know why the items are being returned, and many times we will not know who it is returning them.
For cancellations, you must first call and verify that the order is not in production if your wheels are custom drilled or shipped. If the product has been received by us for mounting and balancing, restocking fees and shipping fees will be applied. Restocking fees are determined by the wheel, tire, or suspension brand. Some manufacturers do not charge a restocking fee. Some can charge up to a 25% restocking fee. You will be responsible for the return shipping if delivered, and the initial shipping charges incurred are non refundable. Clearance items are non-refundable and do not come with a warranty as many times the product is being discontinued, and will no longer be available. Wheels that are custom built or semi-custom built are not returnable and cannot be exchanged for any reason as they are built specifically for your vehicle. If your wheels are in production and are custom made to your vehicle, they are not able to be cancelled. Any product that has been altered, modified, or customized for the customer or by the customer is sold as is, and cannot be returned or refunded for any reason.
Many of the products we offer are custom built or assembled. These items cannot be cancelled, returned, or exchanged once the process of building or assembling this product has begun. This includes custom wheels, wheel and tire packages, custom ordered parts, and others. Please be aware that these are policies established by the manufacturer and by purchasing this product on this website, you agree to the terms of these custom items.
Wheels: | Wheel and tire packages cannot be cancelled, returned, or exchanged. If the wrong product is received, we will be happy to correct the issue. Custom wheels cannot be cancelled, returned, or exchanged. If the product does not fit, we will be happy to correct the issue. |
Tires: | Tires that have been mounted cannot be returned for any reason. Please make sure to verify you are ordering, and recieved the correct tire size. |
Custom Assembled Aftermarket Parts | :Typically most aftermarket parts are not custom assembled and can be returned if unused and in brand new re-sellable condition. If a custom assembled part is ordered such as custom coilover kits, custom exhaust, and others, returns, exchanges, or cancellations are not allowed. If the wrong part is received, or there are issues with the items recieved, we will be happy to correct the issue. |
Please review our FAQ section for all common questions. If you do not see the answer you are looking for, feel free to email or call us and one of our staff will be happy to assist