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Invidia Gemini Single Layer Cat Back Exhaust w/Stainless Steel Tips (Part Number: )
Invidia Gemini Single Layer Cat Back Exhaust w/Stainless Steel Tips (Part Number: )
Invidia Gemini Single Layer Cat Back Exhaust w/Stainless Steel Tips (Part Number: )
Invidia Gemini Single Layer Cat Back Exhaust w/Stainless Steel Tips (Part Number: )
Invidia Gemini Single Layer Cat Back Exhaust w/Stainless Steel Tips (Part Number: )
Invidia Gemini Single Layer Cat Back Exhaust w/Stainless Steel Tips (Part Number: )
Invidia Gemini Single Layer Cat Back Exhaust w/Stainless Steel Tips (Part Number: )
Community Media
Invidia Gemini Single Layer Cat Back Exhaust w/Stainless Steel Tips (Part Number: )
Invidia Gemini Single Layer Cat Back Exhaust w/Stainless Steel Tips (Part Number: )
Invidia Gemini Single Layer Cat Back Exhaust w/Stainless Steel Tips (Part Number: )
Invidia Gemini Single Layer Cat Back Exhaust w/Stainless Steel Tips (Part Number: )
Invidia Gemini Single Layer Cat Back Exhaust w/Stainless Steel Tips
Subaru WRX/STI 2015+
Read 7 Reviews | 3 Q&As
Part # HS15STIGM4SS
$916.37
msrp: $1,378.00

In stock! Ships same day

Features & Product Details

RallySport Direct is proud to carry the Invidia Gemini Single Layer Cat-Back Exhaust System. The Gemini is among one of the most popular cat-back exhaust systems available as they make for an excellent upgrade over the OEM exhaust system to improve the performance and the sound. The combination of increased piping diameter along with smooth bends relieves the exhaust with restriction and turbulence under acceleration which will increase the horsepower, the torque, all while improving the throttle response and reducing the turbo lag.

Here are the key features:

  • Stainless steel quad exhaust tips
  • 4" Tip sizing
  • 304 stainless steel materials
  • 3" piping diameter
  • Exhaust hangers welded on to the OEM locations to allow for a direct fitment
  • New gaskets and hardware included making this exhaust system ready for the installation
  •  

    Specifications

    Brand: Invidia
    Exhaust Orientation: Straight Exit
    Installation Hardware Included: Yes
    Piping Coating: No
    Piping Flex Joint: Yes
    Piping ID: 3.00in
    Piping Material: 304 Stainless Steel
    Piping Taper: No
    Silencer Included: No
    Tip Material: Stainless Steel
    Tip Qty: 2
    Tip Shape: Round
    Tip Size: 4.00in
    Mfgr. Warranty: 1 Year
    Condition: New Product
    Return Policy:

    RallySport Guarantee - 30 Days


    Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

    RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

    The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
    Standard

    PEOPLE WHO VIEWED THIS ITEM ALSO VIEWED

    REVIEWS & CUSTOMER MEDIA

    7 Reviews
    4.7 out of 5 Stars
    5 Stars
    (5)
    4 Stars
    (2)
    3 Stars
    (0)
    2 Stars
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    Customer Photos and Videos
    Invidia Gemini Single Layer Cat Back Exhaust w/Stainless Steel Tips ( Part Number: HS15STIGM4SS)
    Invidia Gemini Single Layer Cat Back Exhaust w/Stainless Steel Tips ( Part Number: HS15STIGM4SS)
    Invidia Gemini Single Layer Cat Back Exhaust w/Stainless Steel Tips ( Part Number: HS15STIGM4SS)
    Invidia Gemini Single Layer Cat Back Exhaust w/Stainless Steel Tips ( Part Number: HS15STIGM4SS)
    Great sound, easy installation 8 months ago
    Coz
    First, the delivery of this product was top notch and I am very happy with the purchase and dealings with RSD during and after the purchase. Second, the installation of this was very simple, especially after finding a video on youtube by someone who went through the process already. Unbolt, lube, and slide off the old exhaust from the CAT back, and then start installation of the new from the back front and it all goes together easily. Just make sure to get the correct adapter plate, if you need one, to connect to the downpipe. Lastly, the sound is fantastic! To give a sense of similarity, if you have heard the SPT exhaust on the 15's on, then you have heard almost exactly what this sounds like, only a little deeper. People can tell when you start your car. There is a low drone internally if you are driving for a while that could get to you. It might just be my installation, but at some point the sound has a reverb sound as if you are driving with one window down and getting that buffer feel going. Overall, very happy with my selection and would definitely do it again if given the option and would definitely suggest to anyone interested in it to enhance your sound to get this.
      
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    1 of 1 people found the following review helpful
    Worth Every Dollar 9 months ago
    Josyal M.
    I purchased the R400 a few months ago. It did get it when there was a sale because it's a bit pricey, but I assure you it's worth every dollar. The packaging was very protected and well wrapped. The installation was very straight forward with the exception of the connection to the downpipe which fits a little funny, but it turned out just fine after messing with it for a while. The pipes line up perfectly and they look incredibly aggressive. Once the exhaust settles in it's got such a deep, rumbly tone. It pops quite often and it can get pretty loud when you floor it. The drone is noticeable, but in my opinion is not unbearable. It doesn't bug my wife so that's got to say something lol. it is just overall a wonderful product and I recommend to anyone looking for a quality exhaust.
      
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    The One 12 months ago
    avstia
    You guys, it's perfect. I was apprehensive to purchase any exhaust system for my '18 WRX. I'm 26 years old, a young professional and needed a mature sounding exhaust note. I was between the Invidia R400, Q300, and the Cobb CBE. I'm glad I didn't get the others. The Q300 just seemed like it wasn't "doing it" for a lot of people (in terms of hitting the perfect note). The Cobb was slightly more than I wanted to spend, although I'm sure the quality is outstanding. The R400 is exactly what I look for in my exhaust. Aesthetically, it's a beautiful piece. I opted for the polished silver tips. I had this professionally installed at a local shop here in West Chester, PA. I can't comment for ease of install, but the fitment is perfect and fills the rear valance nicely, as other reviews have stated. The sound (in my opinion) is not like other exhausts available for our vehicles. It is a choir of badass angels. The tone is deep, you get pops (not as loud as N1 pops) on perfect shifts and rev matches. Normal driving is very pleasant and the volume is sporty, yet reasonable. Highway driving is also pleasant and drone is minimal. It'll scream if you lay into it, and it will drone a little between 1500-1800 rpm, especially on cold starts. It will be heard, but so far, it hasn't attracted any unwanted attention. The R400 is doing this boxer engine a decent favor.
      
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    1 of 1 people found the following review helpful
    Invidia Gemini R400 on 2016 WRX 12 months ago
    JM
    The look and construction of this exhaust is awesome. Once on the car it looks and sounds great. It can get a little loud once you get on the throttle but that is to be expected with an aftermarket exhaust. The tips take up a good portion of the exhaust cutout of the bumper which is nice. This is a must have if you are tired of the weak and throaty OEM pipes. The pain can be from the bolts that go onto the OEM J-pipe with the springs. The flanges on this exhaust are thicker so it will be harder to compress the small spring loaded bolt in order to put the nut on to tighten it down. If you have an aftermarket J-pipe then you might be good as you will most likely be using different bolt/nut combo.
      
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    Great Invidia exhaust!  1 year ago
    JoshD
    I purchased the Gemini Invidia cat back exhaust on Black Friday for the amazing discount and was totally worth it! It’s sounds soooo much better with that boxer engine rumble, definitely got more squeal out of the pig if you know what I mean lol. It took about an hour and a half for install in my driveway on floor jacks by myself, so not too bad. Wayyyy easier with a lift though obviously. Overall, highly satisfied and definitely recommend to anyway who is thinking about purchasing this exhaust system. Also, buy the adapter from stock DP to cat back, better fitmet for sure.
      
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    QUESTIONS & ANSWERS

    • Q: 2019 wrx sti???  gajewskimichal28 days ago

      DOES THIS EXHAUST SYSTEM FIT FOR 2019WRX STI???
    • Q: Adapter fitment  R.P.4 months ago

      I see the above question about the adapter with a 2017 sti. But just wanted some further clarification. I buying for a 2019 sti so assuming the condition of the downpipe to cbe gasket is basically new on my car, an adapter wouldn't be needed to install this exhaust?
      • 0 of 0 people found the following answer helpful

        A:  You are still going to need an adapter, as the downpipe is a different diameter. Also this exhaust is not confirmed for 2019 as of yet.

        Devan M. @ RallySport Direct 4 months ago  
          
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    • Q: Fitmet concerns for Invidia exhaust   JoshD1 year ago

      I have a 2017 Sti, will i need to purchase an adapter from the stock DP to the Invidia catback? Also, will i need to purchase a donut gasket as well?
      • 1 of 1 people found the following answer helpful

        A:  An adapter would be highly recommended when installing with the stock downpipe. Its never a bad idea ether to use a new donut gasket but it being required would be dependent on the condition of the gasket that is installed now.

        Evan M. @ RallySport Direct 1 year ago  
          
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