Alright. Everything here is linked to the original and all quotes are in italics. Anything not in italics is from me giving context to what is presented.
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First, from robdeniro a Mazda 6 driver hopping out of his car into crf50racer's car which has the corksport sri and prototype exhaust:
Thanks for meeting up bro was a pleasure! Your pics really make my car look like an SUV... Also Corksport needs to release that exhaust crf50racer has on his car pulls like a mule and sounds aggressive as hell!
http://forum.mazda6club.com/3922626-post96.html
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CRF50racer commenting on the corksport axleback exhaust:
Also, I made a comment about no noticeable power gain. I can happily say that I was mistaken. The easiest way to explain the gain is to say that driving around with 3 passengers & the air conditioning on max is like driving around solo with the air off.
http://forum.mazda6club.com/3614202-post17.html
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See attached Photo 1 for this comment. He was also running 91 octane. If you convert to flywheel assuming 10% drivetrain losses this is right at 200hp. He tested in Oregon in the winter so temps were cool and humidity low to moderate:
Here is the dyno from my most recent run. I am super happy with 177hp. About 15 more than I expected. This is a baseline with only an Injen Intake. Photo 10
http://forum.mazda6club.com/3889865-post2.html
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From Corksport:
Our intake also features a durable Dry-Flow air filter and custom reinforced silicone connector. In initial testing on the 2014 SkyActiv Mazda 6, the CorkSport SkyActiv Short Ram Intake netted peak gains of +9hp and +12lb/ft of torque.
2014+ Mazda6 2.5L SkyActiv Power Series Short Ram Intake
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From injen regarding 3rd version of CAI intake:
Thanks Vance. I contacted Adrian this morning, and this is what he said:
"...The intake system is available and is been updated to have correct fuel trim readings. The intake system was dyno tested and produced anywhere from 11-13 HP. The p/n:SP6073"
So a little short of 16hp (which would have been amazing), but still a respectable gain for a $175 bolt-on upgrade.
http://forum.mazda6club.com/3697457-post32.html
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See Photo 2 for 2014 Mazda3 2.5G (Same engine as topic of discussion here) axleback Dyno from corksport. Pay attention to increase in max torque also which is over 10ft-lbs at the wheels
CORKSPORT 2014+ Mazda 3 Axle Back Exhaust
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This is fellow mazda6club member monkey who's car was used to develop the 2nd gen Injen CAI intake, and the dyno run they had performed on his car. See Photo 3.
Dyno plot of my car. Quote on email..."notice the conditions, others will get better results with cooler conditions."
http://forum.mazda6club.com/3542308-post94.html
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Testimonial on Injen CAI Intake
Yes sir 1st and 2nd gear are better and acceleration it's freaking better man.
http://forum.mazda6club.com/3909249-post71.html
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Testimonial on Intake:
OK pick up u feel for sure and sounds great
http://forum.mazda6club.com/3531525-post50.html
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Testimonial on Injen CAI Intake
What I've noticed since adding the Injen CAI. Throttle response has improved. I'm led footed, so I notice a bit of a "jump" in the throttle when I first step on the gas off the line...but it can be remedied with a lighter press. Much more engine noise. There is a deep growl when you first give it some gas up to 3K RPM in 1st gear, all the way to 2500K RPM onto 2nd gear, after that it seems to be less growl in the upper gears. Cruising at 60 with a light foot or maintained speed, it almost sounds stock with normal engine noise. Punch it from maintained 60MPH to 80 MPH, little growl but I felt the difference from stock to now...much more responsive. There is not one time where the CAI "bogged" down the 6. Every gear, every step on the gas feels like stock...just with more power, more tourqe and more sweet sound.
http://forum.mazda6club.com/3544502-post116.html
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Testimonial on Injen CAI Intake
I have the INJEN CAI, and it made a SIGNIFICANT difference in the 1st and 2nd Gears of the car (more torque)! How much? I do not know b/c I do not have the $200+ to have it hooked to a DYNO and confirm.
http://forum.mazda6club.com/3907793-post21.html
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My own testimonial on my single side straight through muffler axleback mod:
Performance: No dyno baseline and no after dyno baseline sorry. So for a buttdyno, just driving off with the factory muffler still in the trunk (i.e. no weight savings improvement) this feels like a standard passenger car muffler restriction removal. What I mean by that is the skyactiv muffler does not somehow flow rediculously well, I am seeing the same improvements as on previous Nissan 4cylinders:
The engine no longer feels soft. I would not say throttle response time is improved, but from the time the motor starts reacting to the throttle until full thrust is acheived has gone to zero.
Just pulling out into traffic normally the car accelerated faster than normal, and cruising down the street it seemed to take a smidge less throttle than before, so part throttle performance is significantly better at sub 4k RPMs.
Full throttle feels faster all the way through the powerband. This is probably a 7-10 hp/tq gain not a 3-5hp/tq gain.
http://forum.mazda6club.com/engine-drivetrain/297345-post-your-custom-exhaust-here.html#post3909297
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My own Testimonials on the Corksport SRI Intake:
the SRI is weird in that it feels like a weight reduction, very subtle, where the engine/car is simply quicker at all rpms, as in it's almost more noticeable visually and time wise than a harder kick in the butt like the exhaust change was. The biggest drivability impression on me other than the sound at WOT from 4k on up is that everything feels lighter now. Everything is easier for the engine.
http://forum.mazda6club.com/engine-...ed-injen-cai-corksport-sri-6.html#post4085289
I said before that I felt 91 octane was improving the responsiveness of the car, something I felt. You tried 91 octane and you acknowledged you feel the same thing.
I added an intake, I felt a performance benefit. When I took the car out with the intake for the first time I actually wore a pair of ear plugs so I wouldn't be fooling myself by the sound. The car felt faster, I watched the speeds I reached over distances I am familiar with in this car, the car was moving faster; something I could notice and in-line with a 5% increase in power across the rpm range (not a heck of a lot, agreed?).
I'm not fooling myself, nor are the others who say they feel/notice an improvement as well.
http://forum.mazda6club.com/engine-...ved-injen-cold-air-intake-11.html#post4094914