CEL is driving and car condition dependent, if one bank is richer than the other due to coils/plugs or early indications of cam wear this can set a cat efficiency CEL as well. That said in our testing we've seen the CEL out 95% of the time.

Can't pm, you don't have enough posts! Email me at dundonmotorsports at gmail dot com

 

Will running without cats, with CEL on cause any adverse affects over time?
It would seem you're indicating it will run 'different' that I tented from the factory, and therefore would seem not ideal.

 

No it wouldn't, the CEL for catalytic efficiency is just an indicator, car doesn't change the map it's running on. I'm being abundantly clear about what to expect, that a CEL could come on depending on the cars condition and driving style, separate from the headers. And you can just turn it off with a code reader, get a tune or wait for the catted system if it's highly concerning.

If you're concerned or considering one of our setups feel free to PM me or email at dundonmotorsports at gmail dot com

 

I'm not too far from Matt, so we can make a southern loop with the vbox.

by stopwatch I meant porsche PSM (or whatever acronym it is) built-in, so you only have to flip the stalk on the lower right. It's not exactly riding a ducati without a helmet...

 

Matt. I may have missed it although I believe you say it in your video but how does the power feel vs the last exhaust iteration you ran? Can you feel the additional torque from 4000 rpm etc. very interested to become the first New Zealand customer (saving hard as we speak) ...

 

Well soon you'll have your Dundon headers installed and you can find unsuspecting victims or run Vbox times before and after (that would be really helpful!)

Jamie

 

It feels insanely faster. Even before I hit the dyno to show the difference, I knew there was massive increase. The car has a sense of urgency the is very, very apparent.

 

just placed an order with DMS!

 

Just order them guys! That's what I did lol! I just need that extra 20whp on my RS so bad

 

GT3KSA and 911_RS, both of your payments have cleared and we expect to ship Bennet's this week and Tarek, waiting on the airfilters now!

Thank you again for your orders! Looking forward to your feedback!

 

Thanks Matt. That's great to hear...

 

I have experienced that after installing Akra Evolution on M3 E92. The higher sound levels made me feel the car was faster but it was not as I later discovered driving side by side with a stock M3.
The video you posted earlier (big thanks for that like any great post you do) showed that compared to the stock GT3 your car is not faster.
I still somehow hope that it is as I also would like to get this system. I am however after performance not the sound.

 

Jamie, if you want to send me the vbox, I'll do before and after tests. It will take me a bit to get everything finished as I'm headed on vacation last week of March. However, I'd be glad to do it, though I can't promise Matt-quality videos.

 

@Money 2536 - have you gotten a check engine light from after install till now? How many miles have you driven the car since you finished the install?

 

I thought I made it very clear that the video shows nothing definitive. We never got any of the pulls right. We'll find out at the airstrip.

The sound my car makes isn't all that different from the GMG bypass with the valve disconnected. I could understand the placebo effect going from stock to this, but there is no question my car is faster than it was. The car also launches much differently using LC. (Not to mention the 55 whp delta on the dyno.)