Invidia N1 Cat-back Exhaust (WRX Sedan 2008+) HS08SW4GST

Rating: 5.0 out of 5.0 (2)
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N1 Cat-back Exhaust by Invidia

The Invidia N1 Racing single exit cat-back exhaust for 2008-2014 WRX and 2011-2014 Subaru STi sedan models is constructed from 76mm, polished 304 stainless steel with a burned blue titanium slant-cut tip. The N1 Racing version does not have a resonator. Hangers are designed for an OEM replacement fit and all necessary gaskets, hardware and removable silencer. Engineered to produce strong mid to top-end power gains, as well as provide an increase in horsepower and torque with that aggressive Subaru rumble.


  • Single-exit exhaust
  • 304 polished stainless steel
  • 76mm piping diameter
  • 101mm tip diameter
  • Cast flanges
  • Smooth mandrel bends
  • Improves HP, TQ and throttle response
  • Direct OEM replacement fit
  • Gaskets and hardware included
  • Includes silencer
  • Saves weight
  • N1 Racing version has no resonator


  • Designed for an OEM replacement fit and all necessary gaskets, hardware and removable silencer
  • Produce strong mid to top-end power gains
  • Provide an increase in horsepower and torque with that aggressive Subaru rumble


  • 2008 - 2014 Subaru WRX Sedan
  • 2011 - 2014 Subaru STi Sedan

What's In The Box?

  • 2 - Invidia N1 Cat-back Exhaust


  • Manufacturers Standard Warranty

Customer Reviews

Based on 2 reviews
Ayan Fujimoto
Awesome and amazing single exhaust i have heard in sti here in Japan!!

This exhaust system made my wrx sti sounds good already with my stock downpipe waking up my neighbors early in the morning it would be more aggresive when i change my downpipe thumbs up and highly recommended to have this singe exit exhaust i got the n1 race version sounds amazing on high revs and nice look on the titanium tip thank you maf for the fast shipping...

Wesley Chastain
10 Stars... hands down the best single exit exhaust on the market and I have had 3 STi vehicles!

Look at the title it says it all... I love this exhaust... I got the race version and it is not over bearing like some may think... slight drone on long highway drives but I minimal volume music will drown it out... I have had only single exit exhaust on my sti vehicles as well as the wrx I owned... this one is by far the best... and the titanium burnt tip... damnnnnnnnnnnn... use a kartboy XL polyurethane hanger for the last hanger closest to the bumper and a polyurethane normal length hanger next to the rear diff... the middle hanger can stay stock or normal kartboy poly... no pinging no rocking great look... buy it now! No seriously why are you still reading this... you need this item asap... go on... you know you want to... tell your wife its an investment in your families future.