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I just had Dynocomp in Scottsdale AZ install ARH headers, Fabspeed sport cats and Fabspeed valvetronic exhaust and my car picked up 30hp and almost 34ft. lbs. of torque at the wheels. I love it by the way, it’s very aggressive.
Great gains and thanks for sharing! Saw the love on Instagram as well. Enjoy!
Scottsdale sounds great right about now - not exactly C8 weather in the Mid Atlantic at the moment...
Sorry for the delay on the exhaust ONLY. Things were a bit wild heading into the holidays:
This was a dyno for our non-valved Supersport exhaust - which is virtually identical to our Valvetronic exhaust with valves in the open position. As a result, figures can be used interchangeably.
It is important to note that the baseline we reference is a Z51 car with NPP and valves in the OPEN position. No sandbagging here. That's why our baseline figures (442.29whp and 426.00tq) are quite a bit higher than some others you might see out there:
Peak gains of 3.57whp and 2.26tq admittedly aren't going to set the world on fire. Max gains of 5.81whp and 5.02tq start to look a bit better. Gains over NPP with valves in the closed position would be more substantial - but we don't think it's honest to portray the numbers in that fashion. Gains over "base" non-NPP exhaust will be more significant as well.
You have to give it to GM on creating a great cat-back for stock power level. Real gains with our system are in the sound and weight department. Our system will easily support much higher HP numbers when bigger modifications and power adders (heads, cam, forced induction) really start moving air through these engines.
They literally answered your question in detail and the arrows they pointed out were just showing what you said vs reality. They gave you FACTS with no attitude. Clearly, you just don't like them for whatever reason but the shop took the time to write you say what you heard vs here is real data showing what you heard or read is incorrect. They couldn't have been more respectful to you. I don't know them and have never done business with them but get off your high horse. They literally just clarified for you on the misinformation you read/heard about and you are giving them attitude. SMH...
Yea I know that’s why I want your headers but someone on the FB page said he heard 0 gain in sound when he installed your headers and that worried me so that’s why I put in this question for other members feedback.
I really like the npp because if I get pulled over I can switch it over and make it quite or when I leave in the early am.
also waiting for you to release HTC version or help you test fit.
If you get pulled over, the officer already notice your were too loud and get a ticket. That's why he pulled you over.
If you get pulled over, the officer already notice your were too loud and get a ticket. That's why he pulled you over.
not true,he could have pulled you over for numerous things and then noticed or wants to tack on things.....also if you see a police officer you can close the NPP and therefore not get pulled over.
