What is the best induction I can get for my 99 z28? I was looking into a lid but I like the idea of removing the box like the K&N setup. I was also looking at the Volant air induction that is very similar to the K&N piece. Most guys from what I have read use a lid but has anyone seen gains form the open filter setups like the KN and Volant? Also I'm buying a new MAS, which one? Should I go with a screened or open type?

 

hmmm, thats all up to you.. I see people stating that they have gains, but I havent seen proof.. (see review for proof of lid)... anyways, as for the maf.. if you dont have many mods, steer clear of the maf.. why? its too hit and miss... many have done it and gotten more problems than its worth.. All the aftermarket MAFS I have seen have been descreened.. Mine is bone stock.. puts down real repeatable numbers.. I dont think I will need to mess with it at all..

In theory the conical or oval filters should pull some smoother air and get you some power, but they also look like they will get dirty quicker.. I prefer the near stock look.. I have only a lid that I will run at the track.. other than that, its stock.. paper filter and all..

 

If money is not an issue and every last HP counts for you, I would say go with the volant or FIPK. But compared to a lid IMHO don't think it is worth the exta money for the Volant or FIPK. I would put the extra money towards something else that will show a lot more gains

 

Also as for the filter, I would go with the Holley filter, they have a much better fit than the K&N. I have a Holley and it fits 100% perfect, I hear the K&N needs some sealer and some moving around, K&N is not worth it to me

 

according to my tests, and admittedly I didnt have a Holley to test at the time, there is no gain from the aftermarket filter.. They infact produce less power.. I suggest staying with the paper filter..

the K&N and Amsoil Filters I used fit perfectly.. no issue whatsoever.. paper filter produced more power.. period.. thats just my test though.. feel free to do your own research.. My results are in sig..

 

No flame but a dyno test for filters maybe your idea of a good test, but I find it very inconclusive. You can run any car on a dyno x # of times and get x # of different dyno results. It is too close to test.

Anyhow for the original poster, it doesn't matter what filter you go with, they'll all do the same and being within a small deviation of power output. As for the stock filter, for me I would not use it because 1)I may forget to change it every x,xxx miles 2) it doesn't look pretty with my MTI lid 3)it doesn't look too tough against elements.

I went with the Holley because 1)pretty blue color looks nice with my MTI lid 2) fits perfect 3)lifetime warranty, I just have to clean it all the time. 4)It was rumored K&N doesn't fit as well 5)Looks tough against the elements.

Good luck with whatever you do.

and like Psycho said, don't mess with the MAF, especially if you have an A4

 

psycho I got the MTI also, I hope I put up as good of #'s as your lid did, i'll see in a few weeks

 

A Lid, FTRA and descreen your stock MAF work well.

 

Check out the Stealth airbox assembly from H.P.A. Kinda pricey but I picked up 16 hp. and 21 lbs of torque OVER the output of a lid-FTRA-Holley powershot filter

 

Who is H.P.A....I want to see this Stealth

 

Check HPAParts.com

 

http://www.ls1speed.com/catagory.cfm?catagory=induction

it's the first one up on there.... looks good from what i can see... anyone have numbers to compair the stealth to other lids? thanks

 

Click on FIND MORE and go all the way down to BEST mod going. There are 3 dyno sessions w/different combo's

 

tru, thanks

on that last run, did you do the stealth w/ the ftra? or only w/ the catback and no programming and etc. i didn't quite understand your setup... i guess you gotta tell me all the details. lol

 

The last pull was done with the catback and Stealth only.