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Feel any different? Planning on doing the same before an air box modification from reputable shop in Florida. Or the Halltech cold air intake whenever that's ready for the HTC.
I don't have headers on my car, but I do have the Paragon titanium exhaust and it makes the car sounds like a beast! I thought I read headers would not fit on a HTC, but I could be wrong maybe worth confirming.
I don't notice any difference with the Attack air filter and I guess I had $150 burning a hole in my pocket to gain a few extra HP.
In short, the car is amazing and the ability to have the top down & full trunk was well worth the extra money for me!
Last edited by BryanKlingele; Feb 24, 2022 at 09:08 AM.
I don't have headers on my car, but I do have the Paragon titanium exhaust and it makes the car sounds like a beast! I thought I read headers would not fit on a HTC, but I could be wrong maybe worth confirming.
I don't notice any difference with the Attack air filter and I guess I had $150 burning a hole in my pocket to gain a few extra HP.
In short, the car is amazing and the ability to have the top down & full truck was well worth the extra money for me!
AFE headers are confirmed to fit the HTC (I've talked to a guy with them); I think the only brand struggling with HTC fitment was ARH but believe they've since released a revision or alternate version.
Feel any different? Planning on doing the same before an air box modification from reputable shop in Florida. Or the Halltech cold air intake whenever that's ready for the HTC.
You can always check out the other intake brands that are confirmed to fit HTC models. Corsa & AFE for sure, not sure about K&N.
You can always check out the other intake brands that are confirmed to fit HTC models. Corsa & AFE for sure, not sure about K&N.
For the HTC, There is a disclaimer from Corsa and AFE for right now seems like. I am really focusing on the Halltech for my HTC. I like the torque number and possible additional horsepower gain with the attack blue filter.
For the HTC, There is a disclaimer from Corsa and AFE for right now seems like. I am really focusing on the Halltech for my HTC. I like the torque number and possible additional horsepower gain with the attack blue filter.
One thing to keep in mind regarding "additional" gains from the AttackBlue filter Halltech is now using, that while yes the AttackBlue had the largest mid-range gains of +6whp in Paragon's filter shootout, it was actually the AFE filters that posted the highest peak whp (but all were so close its truly splitting hairs and nearly identical, well within the margin of error I'd say). I'm not trying to bag on the AttackBlue at all, I have one in my car at the moment, but just making sure all the facts are out there since there does seem to be some confusion in the way the numbers were presented.
Paragon is working on the full intake dyno shootout so hopefully we have those results soon!
Hey Kracka......thanks for information. Those shops that you mentioned above confirmed.....does not fit HTC. Perhaps one but also stated there may be some modifications due the trunk structure carpet slightly different. But I will just wait and see what Paragon has in place.
You're welcome; just trying to assist. I have no skin in the game other than personal preferences for my own car. I've studied and researched all the various options to death it seems like so always happy to share what I've learned along the way. I've likely gone overboard driving myself crazy about C8 air filters, intake systems, headers, and sport cats!
One thing to keep in mind regarding "additional" gains from the AttackBlue filter Halltech is now using, that while yes the AttackBlue had the largest mid-range gains of +6whp in Paragon's filter shootout, it was actually the AFE filters that posted the highest peak whp (but all were so close its truly splitting hairs and nearly identical, well within the margin of error I'd say). I'm not trying to bag on the AttackBlue at all, I have one in my car at the moment, but just making sure all the facts are out there since there does seem to be some confusion in the way the numbers were presented.
Paragon is working on the full intake dyno shootout so hopefully we have those results soon!
An interesting graph, but to be clear, based on everything that I have read, while the Halltech will be using the blue nanofiber material, it is not the filter above. The Halltech filter is significantly larger in surface area. The stock filter fits inside the Halltech filter to give you a feel for how much larger it it is. They claim 35% larger. The air filter housing appears to be physically larger as well.
An interesting graph, but to be clear, based on everything that I have read, while the Halltech will be using the blue nanofiber material, it is not the filter above. The Halltech filter is significantly larger in surface area. The stock filter fits inside the Halltech filter to give you a feel for how much larger it it is. They claim 35% larger. The air filter housing appears to be physically larger as well.
You are correct on all counts. That chart is just the best comparison we have so far on the various filter media available for the C8. I know Halltech is claiming their intake will make more power with the AttackBlue filter media vs. the K&N media they originally tested with, but I don't think those claims have been founded yet and are merely speculation.
I just watched a YouTube where the K&N cold air intake made 30 rwhp on the dyno with the C8. It was a before and after dyno run. Hence, the aftermarket exhaust may have helped it somewhat.
I just watched a YouTube where the K&N cold air intake made 30 rwhp on the dyno with the C8. It was a before and after dyno run. Hence, the aftermarket exhaust may have helped it somewhat.
If its the video I saw... Did they reinstall the trunk panel? That's my only question as it could make a huge difference in the results while strapped to a dyno. The gains they claim are also vs. an AttackBlue air filter too which is interesting. That K&N air filter is huge though!
From: Early 2020 Z51 Coupe, Original Owner, Ahwatukee Foothills, AZ
Originally Posted by Kracka
If its the video I saw... Did they reinstall the trunk panel? That's my only question as it could make a huge difference in the results while strapped to a dyno. The gains they claim are also vs. an AttackBlue air filter too which is interesting. That K&N air filter is huge though!
Exactly Kracka you can see the trunk panel below the rear of the car during the dyno and yes agree that would make a huge difference in dyno comparison numbers. Plus on the stock dyno run the trunk was closed.
Exactly Kracka you can see the trunk panel below the rear of the car during the dyno and yes agree that would make a huge difference in dyno comparison numbers. Plus on the stock dyno run the trunk was closed.
Anything for the clicks/views!
Here's K&N's claimed gains, I'd expect them to at least be semi-consistent with testing vs. the above video:
1. Did the ECU continue to adjust A/F ratio after each run resulting in the increase HP?
2. Open hatch and trunk panel not reinstalled.
3. Did the dyno runs have consistent coolant, air intake, engine oil and DCT fluid temps?
Too many inconsistencies or unknowns to make any conclusions.
Did GM engineers leave some power on the table with their air intake system?
Last edited by Mike's LS3; Feb 24, 2022 at 04:51 PM.
