Are there any safe aftermarket performance enhancing chios for the CX 5 turbo engine?

By "safe" I mean ones that leave no telltale fingerprints on the main CPU. I don't want the dealership to know I've used this, natch.

 

At this point, I have yet to hear of such a critter.

 

Thanks shipo,
I suppose all that can presently be done to "assist" the turbo powered CX 5 engine is a higher flow air intake like K&N and using 95 octane gas. Likely the exhaust is open enough to match a higher flow intake. I guess I'll find out in October whenI buy my GT Reserve.

Eric B.

 

Nope, those things won't help either; believe it or not, Mazda, like virtually all other car companies out there, hire and groom very highly trained engineers; changing the intake and exhaust will just shorten your engine life (due to the extra dirt ingested into the engine) without adding any additional power. Your only option will be if/when someone reverse engineers Mazda's computers, and is able to tune in a higher boost.

 

Is someone working on it? Sounds interesting.

 

I've looked at the CX 5 turbo's exhaust in a Youtube review video ("... Geese" something) and the exhaust pipes all look like they could easily handle another 10% more intake air which is about all the increase you can expect from a less restrictive air filter. An internal combustion engine is essentially an "air pump" and increased air intake requires an exhaust equal to the task of flowing it out without restriction.
I've put K&N air fillers on all our cars since 1995 after a 10,000 mile break-in period and they all gave a "seat-of-the-pants" felt increase in power over the stock air filters.

As for higher octane I can tell you my twin turbo Mazda RX-7 (FD-E engine) always responded much better to 100 octane racing fuel and every RX-7 twin turbo owner of the last two RX-7 generations will attest to it. So I feel pretty sure it would boost the CX 5 performance noticeably.

Back east (Pennsylvania) we have 95 octane in our premium gas. West of the Mississippi (yes) it's 91 octane horse ****. So I may often boost it to at least 95 octane with a 50/50 mix of 91 and 100 octane. When I pay for the 100 octane fuel in Nevada I'll just pretend I'm in The People's Republic of California buying mid grade gas.

Eric B.

 

Sorry, unless you have before and after dyno runs to prove your theories, they will remain just that, theories (and believe it or not, Mazda puts their theories to the test, over and over and over again). As for K&N style filters, while they may yield a few (as in like two or three) extra hp up near redline at WOT, the odds of them providing a meaningful power bump in the mid-range (where the torque curve comes into play) are pretty much nil. That and K&N style filters are crap when it comes to filtration, speaking strictly for myself, ain't no way I'd want all that extra dirt coming into my engine, especially for such a meaningless bump in power.