--- product_id: 46904893 title: "HS15STIGM4ST Exhaust System (Back Exhaust2015+ Subaru WRX/Sti Gemini/R400 Single Layer Quad Titanium Tip Cat)" brand: "invidia" price: "2790298CFA" currency: XOF in_stock: true reviews_count: 8 category: "Invidia" url: https://www.desertcart.sn/products/46904893-hs15stigm4st-exhaust-system-back-exhaust2015-subaru-wrx-sti-gemini-r400 store_origin: SN region: Senegal --- # 4-inch stainless steel bell mount for max gas flow Boosts horsepower by +several units Bolt-on installation, no hassle HS15STIGM4ST Exhaust System (Back Exhaust2015+ Subaru WRX/Sti Gemini/R400 Single Layer Quad Titanium Tip Cat) **Brand:** invidia **Price:** 2790298CFA **Availability:** ✅ In Stock ## Summary > 🚗💨 Turn heads and leave stock in the dust with Invidia’s power-packed exhaust! ## Quick Answers - **What is this?** HS15STIGM4ST Exhaust System (Back Exhaust2015+ Subaru WRX/Sti Gemini/R400 Single Layer Quad Titanium Tip Cat) by invidia - **How much does it cost?** 2790298CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/46904893-hs15stigm4st-exhaust-system-back-exhaust2015-subaru-wrx-sti-gemini-r400) ## Best For - invidia enthusiasts ## Why This Product - Trusted invidia brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Gas Flow:** Large 4-inch stainless steel bell mount optimizes exhaust flow to maximize performance gains. - • **Power Surge Unleashed:** Easily adds several horsepower over stock for that extra edge on the road. - • **Signature Subaru Rumble:** Delivers a deep, aggressive exhaust note that commands attention without annoying drone. - • **Sleek Titanium Quad Tips:** One-piece design with eye-catching quad titanium tips for a premium, race-inspired look. - • **Effortless Bolt-On Upgrade:** Designed for quick installation with any Invidia or stock exhaust—no custom mods needed. ## Overview The Invidia HS15STIGM4ST Exhaust System is a bolt-on, stainless steel back exhaust designed for 2015+ Subaru WRX/STI models. Featuring a large 4-inch bell mount and a one-piece design that eliminates the stock catalytic converter, it delivers several horsepower gains and a signature deep rumble. Its quad titanium tips combine performance with a sleek, aggressive aesthetic, making it a top choice for Subaru enthusiasts seeking both power and style. ## Description For a strong boost in power, the Invidia pipe offers an alternative to other power-boosting enhancements. To see just how much power the Invidia pipe can produce, a quick look at its dyno chart shows it easily added several horse-power units to the stock exhaust system. Each Invidia pipe features a large 4-in stainless-steel Bell mount to enhance power by fe excess gas. It sports a one -piece design, eliminating the need for the stock catalytic converter. In addition, each Invidia pipe can be bolted up to any Invidia exhaust or a stock exhaust for an easy installation. Review: Fast shipping, great exhaust. - I was really happy with how quickly this arrived first of all. Some other companies might have it for a little cheaper but it was worth the little extra that i spent to get it within a couple days. I must warn though that at first the exhaust sound will be very obnoxious and almost hard to deal with. You need to let the exhaust break in. it took about a week of driving with it on before it broke in and the drone went away. As far as the exhaust it looks great and sounds great too. If you're looking for an exhaust that isn't super loud this is the one for you. Although it does bring out the Subaru rumble its not annoyingly loud. I also should mention if you have the stock down pipe you will need an adapter since the stock downpipe is 2 1/2 inch and this exhaust is 3 Inch piping. All in all it's a little more expensive but worth it for a great sounding and looking exhaust as well as the fast delivery. Review: Amazing loud sound - This is an amazing exhaust system! The sound is incredible and really wakes up your WRX or STI! I have it on my 2021 STI and it sounds powerful and loud at wide open throttle. If your looking for that loud deep rumble then this is the exhaust system for you! Many will say it’s too loud inside the cabin but what’s a Subaru STI without that signature rumble!? Buy it, your subie will thank you! ## Features - The Invidia pipe Offers an alternative to other power-boosting enhancements - A quick look at its dyno chart shows it easily added several horse-power units to the stock exhaust system - Each Invidia pipe features a large 4-in stainless-steel Bell mount to enhance power by freeing excess gas ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0748VWB2Z | | Best Sellers Rank | #1,392,642 in Automotive ( See Top 100 in Automotive ) #481 in Automotive Replacement Exhaust Cat-Back Systems #1,520 in Automotive Replacement Exhaust System Gaskets | | Brand Name | Invidia | | Compatible with Vehicle Type | Car | | Customer Reviews | 4.5 4.5 out of 5 stars (37) | | Included Components | Automotive Exhaust Gaskets | | Installation Type | Bolt-On | | Item Type Name | Back Exhaust (Back Exhaust)2015+ Subaru Wrx / Sti Gemini/R400 Single Layer Quad Titanium Tip Cat) | | Item Weight | 49.5 Pounds | | Manufacturer | Invidia | | Manufacturer Part Number | HS15STIGM4ST | | Material Type | Stainless Steel | | Shape | Round | | UPC | 619775374171 | ## Product Details - **Brand:** Invidia - **Installation Type:** Bolt-On - **Material:** Stainless Steel - **Shape:** Round - **Vehicle Service Type:** Car ## Images ![HS15STIGM4ST Exhaust System (Back Exhaust2015+ Subaru WRX/Sti Gemini/R400 Single Layer Quad Titanium Tip Cat) - Image 1](https://m.media-amazon.com/images/I/61Qpq-aNfYL.jpg) ## Questions & Answers **Q: Will it fit Subaru Forester 2011 2.5T?** A: Im not sure i installed mine on a 2017 sti **Q: Will my wrx have any problems passing smog test with this** A: Nope. Not at all. The exhaust does not affect smog certification nor does it avoid factory warranty. The full catback exhaust is post cat which is where the o2 sensors are located. Also, this exhaust sounds amazing. Not too loud while driving. You only hear it when you smash on the pedal and there is no drown so you are able to listen to your music or talk to your passengers. **Q: Do I need 4 inches down pipe for the r400 cutback** A: No you can still have your stock downpipe with the 3 inch invidia exaust. All you have to do is buy the grimmspeed adapter and everything will be perfect **Q: My exhaust is arriving today and my grimspeed adapter is arriving next week. Cant wait to install this thing. Is the adapter required to install r400?** A: Yes it is and trust me its worth the wait ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fast shipping, great exhaust. *by C***E on March 20, 2018* I was really happy with how quickly this arrived first of all. Some other companies might have it for a little cheaper but it was worth the little extra that i spent to get it within a couple days. I must warn though that at first the exhaust sound will be very obnoxious and almost hard to deal with. You need to let the exhaust break in. it took about a week of driving with it on before it broke in and the drone went away. As far as the exhaust it looks great and sounds great too. If you're looking for an exhaust that isn't super loud this is the one for you. Although it does bring out the Subaru rumble its not annoyingly loud. I also should mention if you have the stock down pipe you will need an adapter since the stock downpipe is 2 1/2 inch and this exhaust is 3 Inch piping. All in all it's a little more expensive but worth it for a great sounding and looking exhaust as well as the fast delivery. ### ⭐⭐⭐⭐⭐ Amazing loud sound *by C***D on June 12, 2021* This is an amazing exhaust system! The sound is incredible and really wakes up your WRX or STI! I have it on my 2021 STI and it sounds powerful and loud at wide open throttle. If your looking for that loud deep rumble then this is the exhaust system for you! Many will say it’s too loud inside the cabin but what’s a Subaru STI without that signature rumble!? Buy it, your subie will thank you! ### ⭐⭐⭐⭐⭐ Product Review *by A***R on November 30, 2020* Looks and sounds AMAZING !!! After install Love the subie Rumble. A great deep tone after it is broken in. Tips look very nice 😎 Driving it is comfortable noise. Highway speed no drone unless your going 85. If ya hit it sounds very good. Compared to stock exhaust alot louder but not obnoxious. Go with the R400. ## Frequently Bought Together - Invidia HS15STIGM4ST Exhaust System (Back Exhaust2015+ Subaru WRX/Sti Gemini/R400 Single Layer Quad Titanium Tip Cat) - Subaru Genuine Exhaust Donut Gasket - 44022AA123 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/46904893-hs15stigm4st-exhaust-system-back-exhaust2015-subaru-wrx-sti-gemini-r400](https://www.desertcart.sn/products/46904893-hs15stigm4st-exhaust-system-back-exhaust2015-subaru-wrx-sti-gemini-r400) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-07-23*