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Invidia Gemini R400 Single Layer Cat Back Exhaust w/Titanium Burnt Tips - Subaru WRX/STI 2015+
Invidia Gemini R400 Single Layer Cat Back Exhaust w/Titanium Burnt Tips - Subaru WRX/STI 2015+
Invidia Gemini R400 Single Layer Cat Back Exhaust w/Titanium Burnt Tips - Subaru WRX/STI 2015+
Invidia Gemini R400 Single Layer Cat Back Exhaust w/Titanium Burnt Tips - Subaru WRX/STI 2015+
Invidia Gemini R400 Single Layer Cat Back Exhaust w/Titanium Burnt Tips - Subaru WRX/STI 2015+
Invidia Gemini R400 Single Layer Cat Back Exhaust w/Titanium Burnt Tips - Subaru WRX/STI 2015+
Invidia Gemini R400 Single Layer Cat Back Exhaust w/Titanium Burnt Tips - Subaru WRX/STI 2015+
Invidia Gemini R400 Single Layer Cat Back Exhaust w/Titanium Burnt Tips - Subaru WRX/STI 2015+
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User Media for: Invidia Gemini R400 Single Layer Cat Back Exhaust w/Titanium Burnt Tips - Subaru WRX/STI 2015+
User Media for: Invidia Gemini R400 Single Layer Cat Back Exhaust w/Titanium Burnt Tips - Subaru WRX/STI 2015+
User Media for: Invidia Gemini R400 Single Layer Cat Back Exhaust w/Titanium Burnt Tips - Subaru WRX/STI 2015+
User Media for: Invidia Gemini R400 Single Layer Cat Back Exhaust w/Titanium Burnt Tips - Subaru WRX/STI 2015+
User Media for: Invidia Gemini R400 Single Layer Cat Back Exhaust w/Titanium Burnt Tips - Subaru WRX/STI 2015+
User Media for: Invidia Gemini R400 Single Layer Cat Back Exhaust w/Titanium Burnt Tips - Subaru WRX/STI 2015+

Invidia Gemini R400 Single Layer Cat Back Exhaust w/Titanium Burnt Tips

Subaru WRX/STI 2015+

Read 21 Reviews | 60 Q&As
Part # HS15STIGM4ST
$1,234.10
msrp: $1,763.00

Estimated to ship in 13 days
ANY QUESTIONS?

Features & Product Details

RallySport Direct proudly carries a large selection of quality high-performance master-crafted exhaust options brought to you by Invidia. 

 

This is the Invidia Gemini R400 Cat-Back Exhaust System. This exhaust system features a design that combines minimal bends with a larger piping diameter. This will allow for an unobstructed exit of exhaust gases with minimal restrictions and turbulence. This will allow for improvements in both horsepower and torque, along with improvements in throttle response.  Additionally, the Gemini R400 will create a race-inspired exhaust note that will make the overall driving experience much more enjoyable. 

 

 

 

DETAILS:

  • Titanium burnt tips
  • 3" Piping diameter
  • 304 Stainless steel materials
  • Pronounced exhaust note throughout the entire RPM band
  • Exhaust hangers welded onto OEM locations to make it a direct fitment exhaust
  • New hardware and gaskets provided to make this exhaust ready for the installation
  • Product Video

    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: Titanium
    Tip Qty: 4
    Tip Shape: Round
    Tip Size: 4.00in
    Mfgr. Warranty: 1 Year
    Condition: New Product
    Return Policy:
    Standard

    PEOPLE WHO VIEWED THIS ITEM ALSO VIEWED

    REVIEWS & CUSTOMER MEDIA

    21 Reviews
    4.9 out of 5 Stars
    5 Stars
    (19)
    4 Stars
    (2)
    3 Stars
    (0)
    2 Stars
    (0)
    1 Stars
    (0)
    Customer Photos and Videos
    Invidia Gemini R400 Single Layer Cat Back Exhaust w/Titanium Burnt Tips ( Part Number: HS15STIGM4ST)
    Invidia Gemini R400 Single Layer Cat Back Exhaust w/Titanium Burnt Tips ( Part Number: HS15STIGM4ST)
    Invidia Gemini R400 Single Layer Cat Back Exhaust w/Titanium Burnt Tips ( Part Number: HS15STIGM4ST)
    Invidia Gemini R400 Single Layer Cat Back Exhaust w/Titanium Burnt Tips ( Part Number: HS15STIGM4ST)
    Invidia Gemini R400 Single Layer Cat Back Exhaust w/Titanium Burnt Tips ( Part Number: HS15STIGM4ST)
    Invidia Gemini R400 Single Layer Cat Back Exhaust w/Titanium Burnt Tips ( Part Number: HS15STIGM4ST)
    1 of 1 people found the following review helpful
    Love it!!!  5 months ago
    5out of 5stars
    Subiiee_Azura
    Love the tone! Not too deep to wake the neighbors but deep enough to enjoy it! Dont forget the catback adapter!
      
    Was this review helpful?
    1 of 2 people found the following review helpful
    2016 WRX 2 years ago
    5out of 5stars
    Ed
    Bought and installed this on my 2016 WRX. The hardest part of the install was 50% toss up between getting off the old axleback (new england seized bolts) and getting the new axleback pieces into the hangers (didn't have the grease my bad) but besides that couple jack stands and an impact and you'll be done in a hour or two. Sounds great and causes a little drone on the highway but nothing unbearable. Another great Invidia exhaust.
      
    Was this review helpful?
    3 of 3 people found the following review helpful
    17 sti 2 years ago
    5out of 5stars
    Tone_sti
    Very fast shipping like always from RSD. Install was very simple, only took about an hour from removing the old exhaust and installing the r400. Fitment is on point and the first start up was music to my ears. Would highly recommend this catback. Especially with burnt tips. Great quality piece from invidia
      
    Was this review helpful?
    1 of 1 people found the following review helpful
    Invidia R400 2 years ago
    5out of 5stars
    Tony's WRX
    I'm truly happy with the R400! The install was easy and the burnt tips 4" tips look awesome. Highly recommend spending the extra money for them! It sounds great! However, I'm thinking since it has two cats and now two resonators, it makes it a little droney but we'll fix that soon with a downpipe!
      
    Was this review helpful?
    1 of 1 people found the following review helpful
    Invidia R400 2 years ago
    5out of 5stars
    Brian p
    Packing arrived fast and on time. I was blow away by the sound. Great product. Costumer service was also very helpful.
      
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    QUESTIONS & ANSWERS

    • Q: Invidia R400 Catback Exhaust   21WRXSTI6 months ago

      Will this fit a 2021 WRX STI? Your site says nothing is available for 2021. Also, when will you be getting more in stock.
      • 1 of 1 people found the following answer helpful

        A:  This will fit the 2021 models, I don't have a concrete date on when these will be in stock on our shelves. When they do arrive, they are immediately sent out for backorders.

        Lane H. @ RallySport Direct 5 months ago  
          
        Was this answer helpful?
    • Q: Gemini R400 Gasket  TurboBrunei6 months ago

      Hi RSD, I have a non USDM Subaru Sti 2.5, year 2021 with right hand drive. I am planning to buy the R400 exhaust from you connecting it to OEM downpipe. What gasket I need to buy for this? Thank you, Vincent
      • 0 of 0 people found the following answer helpful

        A:  I don't think this would work for your vehicle, these are only confirmed for USDM models.

        Lane H. @ RallySport Direct 5 months ago  
          
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    • Q: shipping weight  doctian7 months ago

      Hi. what is the shipping weight for the invidia gemini r400 exhaust?
    • Q: Fitment 2020 wrx invidia r400  Hudson649 months ago

      Do I need an adapter for the stock J pipe or does it come with the exhaust system?