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Invidia N1 Cat Back Exhaust ( Part Number:INV HS11STIGTP)

Invidia N1 Cat Back Exhaust - Subaru WRX Sedan 2008-2013 / STI Sedan 2011-2014 / Forester XT 2009-2014

Manufacturer Part # HS11STIGTP


MSRP: $1,007.00

Ships within 3-4 weeks
Qualifies for free shipping!

Buy as a package deal and save:
Turbo-Back Exhaust Stainless Steel Tip System ( Part Number:RSD SSTBS08-14SED)
Turbo-Back Exhaust Stainless Steel Tip System - Subaru WRX Sedan 2008-2014 / STI Sedan 2011-2014
As low as $1,137.72
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If you are looking for a great way to squeeze a little extra performance from your vehicle, then you will be pleased with the Invidia N1 Cat-Back Exhaust System. There are several performance attributes that makes this an excellent upgrade. This exhaust system has been made from 304 stainless steel and features 76MM piping. The exhaust has also been designed with minimal bends to reduce the amount of turbulence during acceleration, allowing the engine to exhale the exhaust gasses with fewer restrictions. This means you will have improvements in throttle response, along with increases in both horsepower and torque. 

This exhaust will come with a beautiful pair of polished tips on premium mufflers, and the exhaust hangers are welded onto the stock location of the pipes so you don't have to perform further modifications.

New gaskets and hardware will come with this exhaust system to make it ready for the installation. 

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Brand: Invidia
Exhaust Orientation: Angled Exit
Installation Hardware Included: Yes
Piping Coating: No
Piping Flex Joint: Yes
Piping ID: 76mm
Piping Material: 304 Stainless Steel
Piping Taper: No
Silencer Included: Yes
Tip Material: Stainless Steel
Tip Qty: 2
Tip Shape: Round
Tip Size: 101mm

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.



Verified Purchase

Want that true Subie rumble?
PeytHott 2 years ago
I ordered the N1 along with the Invidia Catted Downpipe to upgrade from the SPT catback on my 2013 WRX. I was hesitant about ordering the N1 since many people complain about the highway drone. I put on 600 highway miles on a road trip the day after install and my only complaint is that I wish it was a little louder! The drone isn't bad at all and conversations and/or music can easily overpower it. The N1 sounds almost the exact same as my SPT at idle and is only slightly louder during non WOT driving. WOT is an amazing sound and brings out the classic Subie rumble. Great quality and fitment! Just wish it was a little louder at times...
Verified Purchase

'16 Forester XT with N1 exhaust
KindredSpirits 2 years ago
The first thing I noticed when opening the box was the quality of this exhaust. It is very well made and the welds are very precise. Seeing the exhaust tips in person was a bit surprising, however, once installed, they fit the radius of the bumper outlets perfectly. My only gripe with this exhaust is that the section of flex pipe at the front of the exhaust has a U shape which hangs lower than the rest of the system, making it vulnerable when off-roading. I do take my forester off roading, so I am inclined to have a shop straighten the bend and tuck it up, there is no reason for this section to hang lower than the rest, perhaps because this exhaust fits multiple Subarus? Install was easy and took less than two hours. The Sound: The exhaust sounds great. Has a nice rumble at start-up and idle. When you get on it, it can get pretty loud up through about 4000 rpm where the exhaust note smooths out. There was a noticeable improvement on top-end power. I love the noise, but there are times when I would like it to be quiet. Thankfully, when cruising on the highway, it is almost unnoticeable; no drone whatsoever. With an adjustment of driving style, the exhaust can be pretty subdued. I have the N1 exhaust coupled with an AEM cold air intake (no tune), between the two, I have picked up 2 psi of boost over stock. Peak boost is coming in at around 21 psi over my previously recorded best of 19 psi fully stock. Great combination for a good price. Very satisfied with the combination. (2016 Forester XT, 2.0 turbo)
Verified Purchase

INvidia n1
guest5614450c4ea8c391658b45b4 3 years ago
Sounds great. Wakes the car up

Love it
jmales 3 years ago
I have installed this exhaust with my stock downpipe and it sounds perfect. Not too loud (for my taste), but really brings out the boxer rumble. The dual exit looks great too.

WRXVT88 4 years ago
Even though it took me forever to get it, it was well worth the wait! Ordered the titanium tipped one for my 14 WRX, but after waiting like two weeks finally switched to this one. Once I asked they where quick to switch and send. Anyway I was suprised how easy it was to install! It took longer to install mud flaps on her then this exhaust! Took no more then an hour. The sound is perfect. Not too loud but not too soft. The low growl is amazing. I just want to keep driving all day long. It definetly sets my WRX apart from the others and that's just what I was looking for. So if your looking for a nice exhaust that looks like it's aftermarket and want a unique low pitch growl from your WRX look no further.

  • Q: Invidia N1 cat back exhaust gasket sizes?  tesla31707772 7 months ago


    I have this exhaust, but need to replace all gaskets with better quality ones. There are 4 total from the downpipe-back that are included, 2 of each size. what are the proper sizes? thank you.

    • A: You will need 2 of each of these part numbers: GRM 022001 & GRM 020031

      Tyler G. 7 months ago
  • Q: Fitment on a forester X  OhItsNotJoe 2 years ago


    The bio of the part does not specifically say that it fits the forester X, will it? (2010

    • A: This should fit on the Forester X but we cannot confirm it will fit. We can only confirm the fitment for the Forester XT

      Jared A. 2 years ago
  • Q: Subaru 2008 wrx sedan  jordanjohansen 2 years ago


    Will this exhaust fit the Cobb SS 3'' down pipe?

    • A: Yes this exhaust will fit to a 3 inch down pipe.

      Chris W. 2 years ago
  • Q: Rear O2 Sensor  conway13 2 years ago


    Is there a bung for the rear O2 sensor? Or does this bolt up just past where the OEM rear cat is?

    • A: The rear O2 Sensor is located in your Downpipe.

      Brady R 2 years ago
  • Q: Fitment  shawnmegahy 2 years ago


    Will this fit on a 2011 wrx limited hatchback. If not what are the differences.

    • A: This is confirmed for the sedan and will not fit the hatch. Hanger locations and length of the exhaust are quite different.

      Brady R 2 years ago