SKU: 70823692297

Invidia Down Pipe "Australian Spec" w/300 CPSI Cat Subaru STI 08-14/LGT 07-09/FXT 08-13 (5AT)

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Description

Invidia Down Pipe "Australian Spec" w/300 CPSI Cat Subaru STI 08-14/LGT 07-09/FXT 08-13 (5AT)New for 2024: Revised design with 300CPSI catalytic converter to suit stricter EPA emissions requirements INVIDIA CATTED DOWN PIPE The most restrictive component of the factory exhaust system is the down pipe which begins right after the turbocharger. Invidia Exhausts use a open bellmouth design to completely open up the exhaust flow path out of the turbocharger. This open bellmouth design combined with a larger pipe diameter and smooth bends allows

New for 2024: Revised design with 300CPSI catalytic converter to suit stricter EPA emissions requirements

INVIDIA CATTED DOWN PIPE

The most restrictive component of the factory exhaust system is the down-pipe which begins right after the turbocharger. Invidia Exhausts use a open bellmouth design to completely open up the exhaust flow path out of the turbocharger. This open bellmouth design combined with a larger pipe diameter and smooth bends allows the turbocharger to exhale exhaust gases with fewer restrictions and turbulence. Because of these reasons, Invidia down-pipes make for the most popular exhaust upgrade that adds a substantial bump in both horsepower and torque with a great reduction in turbo lag.

The bellmouth is made from cast 304 Stainless Steel to withstand the high temperatures seen at the turbocharger, with a laser cut cast steel flange to ensure long lasting leak free reliability. A High-Flow catalytic converted is utilised to control emissions for street driving legalities but with minimal impact to exhaust flow. Designed locally to suit Australian Specification Vehicles, this is a 100% bolt on installation for right-hand drive vehicles with no modifications or changes to the steering knuckle required.  Factory O2 sensor locations are also retained to ensure compatibility with factory systems.

 

INVIDIA PERFORMANCE

Far more engineering goes in to the design of an exhaust system than many realise. From a performance perspective, there is a fine balance between exhaust back pressure and exhaust gas velocity. Too large a diameter pipe, and low down power and torque is sacrificed (particularly on naturally aspirated cars), too small a diameter or added restrictions and bottle necks in the system, and the engine is unable to push gasses out of the combustion chamber efficiently, reducing power and torque. There are many other technical aspects such as "scavenging effect" which are beyond the scope of this document, but the point is, it's not as simple as just strap on a drain pipe and gains for days. A "quality" exhaust system maximizes performance gains by design.

Invidia High Performance employ a team of engineers and conduct thorough research and development for every single exhaust component they manufacture, ensuring performance to match the customer's needs in every instance, including the use of the highest quality High Flow Catalytic Converters where applicable.

 

INVIDIA SOUND

What an exhaust sounds like is typically the number one factor when choosing a system. The acoustics of an exhaust system are hugely complex. Many people believe that all an exhaust does is muffle the natural tone of the engine, but in the vast majority of cases this is far from the truth, in fact companies like Ferrari, Lamborghini, Pagani, Porsche and alike all spend massive amounts of time and money "fine tuning" their exhaust systems to sound exactly how they want them to. Put a straight pipe on just about any hypercar and that distinctive engine note is lost.

Tuning the sound of an exhaust system adds an additional layer of complexity to the performance aspect of the design process. The goal is to design a system that sounds great, without adversely affecting performance. Invidia spend countless hours on research and development, including listening to customer feedback in order to fine tune their systems to suit the target market for each model from the quieter Q300 to the Race orientated G5 Titan, so you can be assured your car sounds its absolute best, without sacrificing performance.

 

INVIDIA CONSTRUCTION

The final piece of the puzzle is perhaps the most important of all. you don't have to be an expert to realise that all the research and development in the world means nothing if the final product is built with sub-standard materials, using sub-standard manufacturing techniques. From the very beginning, Invidia employ state of the art manufacturing techniques to ensure form, fit and finish are all on point.

 First, a 3D scan is take of the underside of the car to ensure fitment is 100% correct.  Next, grade 304 Stainless Steel  (with the exception of their titanium systems of course) is selected for all piping, mufflers and flanges. This particular grade is chosen for its strength, durability (ability to withstand the elements),  and its ability to be formed and welded with relative consistency and ease. Cast flanges are then used which ensures 100% correct fitment every time, no leaks or additional stress points, and long lasting strength.    , an

Finally, robotic welding machines are used to ensure every single weld is uniform and precise, not only adding a huge amount of strength, but also removing manufacturing variances which are unavoidable when doing a task by hand. This means every system that rolls off the production line is just about as identical as possible. All built to the same incredible high standard. Did we mention it also looks absolutely awesome?  

  

   INVIDIA LIFETIME WARRANTY

Buy with confidence! Invidia Exhausts Australia's LIFETIME WARRANTY applies to this product. Invidia Exhausts Australia warrants all of its products with a limited lifetime warranty policy. Lifetime Warranty covers:

  • Structural welds
  • Mufflers and internals
  • Cracks
  • Manufacture defects

Lifetime Warranty does not cover:

  • Catalytic Convertors (2 Years warranty)
  • Titan G5 Titanium Exhausts (12 months warranty)
  • Headers/Exhaust Manifolds (12 months warranty)
  • Logo or Invidia Badge falling off
  • Scrapes or scrubbing
  • Crashes/Vehicle Accidents
  • Damage caused by anti-lag/crackle/backfire/shift-cut Tunes

 

Terms and conditions apply - Click For Details

 

 

Vehicle Fitment:

  • 2008-2014 Subaru WRX EJ25 (5-Speed Auto)
  • 2008-2014 Subaru STI EJ25 (5-Speed Auto)
  • 2007-2009 Subaru Liberty GT EJ25 (Automatic)
  • 2008-2013 Subaru Forester XT SH EJ25 (Automatic)

NOTE: Suitable for 5-Speed Automatic transmission vehicles only.

 

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 70823692297

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souperman1985
Lowell, US
★★★★★ 5
Great confidence booster for dad - techniques can be successfully implemented immediately after birth!
Format: Paperback
This is an excellent book! My husband read this book before our baby was born. Although I found a synopsis to be enough for me (no need to read a whole book for five main techniques), as an engineer, he really liked understanding all of the "whys" behind the methods, and understanding the reasoning gave him more empathy for our baby. My husband started implementing the techniques in this book immediately in the hospital right after the birth, and they really worked! It was extremely helpful for his confidence as a dad and for my confidence in him / us as we started the adventure of parenting (especially when I was recovering from childbirth in those early weeks). We have continued using these techniques for months, and they make a huge difference. Sometimes babies get overly tired and don't even know why they are crying anymore, and these techniques help to soothe quickly to get down for a nap. Truly, I do not know where we would be without a good swaddle and turning our baby on his side while swaddled, because he can be losing it completely and then the swaddle / gentle bounce calms him down very quickly. The one thing I wish the book did mention but does not is that it IS possible for a swaddle to be too tight on the legs - the latest research shows that babies need room to bend and straighten their legs for safe growth of their hips, so it's ok to do a fairly tight swaddle such that their arms cannot escape, but there does need to be slack at the feet.
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Reviewed in the United States on December 31, 2015
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B. Stephens
Carnegie, US
★★★★★ 5
SAVED MY SANITY!!!
Format: Paperback
I don't know why I didn't leave a review on this book as soon as I finished reading it! My daughter was quiet for the first week home from the hospital, but along came week two and around 8 pm one night she began to cry, and this time it was different, we literally could not get her to stop. She cried until around 4 am, and I was terrified that we had a year of colic crying ahead of us, but prayed it was just a fluke and that the next night things would be different. However, 8 pm rolled around, the crying began, and we had a repeat of a night full of inconsolable crying. I had never felt such all encompassing exhaustion in my entire life and I just prayed that there was a book that would have answers for me. So the next morning I took to Amazon and began my search. After reading reviews I decided to give this book a try - the length was perfect, thank you Harvey for getting straight to the point and telling us exactly what we needed to know! I was able to implement the S's the following evening at 8 pm when the crying began and I believed with every fiber of my being that it was going to work - AND IT DID!!! Simulating the womb experience was exactly what my daughter needed to soothe her overstimulated little newborn nervous system and she calmed down in less than a minute and fell into a blissful sleep that lasted until her next feeding, after which we repeated the process and she was asleep again. She was sleeping through the night after a couple of months, and we continued to use Harvey's method until eventually she didn't seem to need it anymore. This book was a lifesaver, I have given it as a gift at every baby shower I've attended since I first discovered it, and I'll continue to give it as long as I live!! This book could just as easily be called Happiest Parents on the Block - I am so very grateful that I found it when I did!
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Reviewed in the United States on May 22, 2020
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Benjamin Nagy
Lake Worth, US
★★★★★ 5
Every new parent and grandparent should read this book.
Format: Paperback
Exceptionally practical book for every new parent and grandparent
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Reviewed in the United States on April 17, 2026
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Theresa
Battle Creek, US
★★★★★ 4
Ignore the sales pitch and absorb the advice
Format: Paperback
I agree with other reviews, great advice but the dr really pushes his products in it. I guess the guys gotta make some money. Worth the read though.
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Reviewed in the United States on September 5, 2025
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Eric
West Palm Beach, US
★★★★★ 5
Nuggets of knowledge
Format: Paperback
This book has a lot of knowledge you may already know and/or would definitely see anywhere else on the internet. I found this to be an easy read that I briefly scan over until I find what I’m more curious about. There are several parts we found to be helpful and just good to have. It’s like adding more “tools”(skills) to the tool chest. As a new parent, I’m always trying to be a learner. We learned from the little nuggets of knowledge inside these pages It’s a very affordable book that you can buy used for just a few bucks. Low risk, high reward. Best of luck to all the new parents out there and congrats to your growing families. 🤙
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Reviewed in the United States on August 29, 2023

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