Airbox help
Thread Starter
Melting Slicks
Joined: May 2006
Posts: 3,385
Likes: 4
From: King George VA
Airbox help
VORTEX RAMMER COLD AIR SYSTEM are they worth $280?
I heard and know of the cutting of the airbox and getting a K&N but I dont want to do that to mine.
What is the best airbox but a good price to?
I heard and know of the cutting of the airbox and getting a K&N but I dont want to do that to mine.
What is the best airbox but a good price to?
Team Owner
Joined: Sep 2001
Posts: 62,154
Likes: 1,731
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
No, its a piece of junk. Quality is awful and the performance is not as advertised.
SLP is the one I have, but it is not going to give the power that is advertised either.
SLP is the one I have, but it is not going to give the power that is advertised either.
Melting Slicks
Joined: Jan 2005
Posts: 2,604
Likes: 0
From: Phoenix, Arizona
Originally Posted by fc_soldier
What about the one with the 3 filters at the end?
BTW...Welcome!
Nice color choice! 
Jeff
Team Owner
Joined: Jun 2001
Posts: 26,196
Likes: 0
From: Orlando FL
St. Jude Donor '08-'09
no they aren't worth it for the price you pay. About the best option is to cut your lid (free) and get a K&N filter in there.
You could also run new hose and get a cone filter down there too (i made a short ram, but plan to make it longer and get it back to the stock area soon). That was a few dollars in hoses and clamps from the hardware store and a cone filter from the auto parts store.
Don't bother with the BPP ramair crap. BPP stands for Bad Performance Products
I was going to buy one when they first came out. They had dyno numbers for their Late C4 and C5 cars, but none for the Early C4 cars. They also refused to talk about it when I asked them... which leads me to believe, its a POS compared to the LT1/LS1 models.
You could also run new hose and get a cone filter down there too (i made a short ram, but plan to make it longer and get it back to the stock area soon). That was a few dollars in hoses and clamps from the hardware store and a cone filter from the auto parts store.
Don't bother with the BPP ramair crap. BPP stands for Bad Performance Products
I was going to buy one when they first came out. They had dyno numbers for their Late C4 and C5 cars, but none for the Early C4 cars. They also refused to talk about it when I asked them... which leads me to believe, its a POS compared to the LT1/LS1 models.
Burning Brakes
Joined: Dec 2005
Posts: 805
Likes: 11
From: Hickory Flat Ga
The K&N does not fit the stock airbox very well. They give you some grease to try and seal it. SLP is much better. Recent article in Corvette Enthusiast Mustang Dyno says 6 hp.
For the hundredth time
For the hundredth time
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Burning Brakes
Joined: Jun 2005
Posts: 861
Likes: 1
From: Hyde Park NY
St. Jude Donor '05
Originally Posted by elefkow
I have a SLP but this is not a true cold air system. It still works for me.
Team Owner
Joined: Jun 2001
Posts: 26,196
Likes: 0
From: Orlando FL
St. Jude Donor '08-'09
Originally Posted by RAGOVET
I was looking at the SLP CAI ($267). I understand HP gains is questionable, but can you describe any WOT sound difference between this and the KN open lid filter.
The CAI's won't get you much more of a gain because its still pulling the same air from the same area.. it just might breath a bit better, but with a cut air lid, you are about as good as you are going to get. About the only gains you will get from one of those CAI kits is it looks cooler and you might get a few mors horses out of it. Certianly not worth $267...
Instructor
Joined: Jul 2006
Posts: 202
Likes: 1
From: boise id
u r better off cutting the aluminum airbox lid, getting a K&N insert, and saving $200. you can always make it look professional by bomb-canning the lid a sweet color to match your vette as well. save a few bucks and do it your self.
Le Mans Master
Joined: Jul 1999
Posts: 8,683
Likes: 6
From: Phoenix AZ
Originally Posted by tlong
The K&N does not fit the stock airbox very well. They give you some grease to try and seal it. SLP is much better. Recent article in Corvette Enthusiast Mustang Dyno says 6 hp.
For the hundredth time
For the hundredth time
Burning Brakes
Joined: May 2006
Posts: 857
Likes: 1
From: Morrisonville Illinios
CUT the LID! 
If you want you can pick a new one up on the internet or local junk yard if you want to keep your old one. The filter is no problem and you can tell right away that it is breathing better. It is a CHEAP fix and worth the fact that you are getting more air in. wro87
If you want you can pick a new one up on the internet or local junk yard if you want to keep your old one. The filter is no problem and you can tell right away that it is breathing better. It is a CHEAP fix and worth the fact that you are getting more air in. wro87
Thread Starter
Melting Slicks
Joined: May 2006
Posts: 3,385
Likes: 4
From: King George VA
Originally Posted by Hotred94
Honestly I don't know of any airbox that is worth the money. Do a full cut lid. Then you can buy roller rockers instead.
Team Owner
Joined: Jun 2001
Posts: 26,196
Likes: 0
From: Orlando FL
St. Jude Donor '08-'09
Originally Posted by fc_soldier
Alright Ill do it you guys twisted my arm. Does anyone have pics of this being done? Someone give me a brief overview.
Thanks
Thanks
basiclly whatever is not holding the filter down, cut it out of the lid.
you want to leave the outside frame and thumbscrews to actually hold the filter to the airbox, but cut away everything else so the filter will be left completely exposed.
it is hard brittle stuff, I cut mine up with an anglegrinder. you can probably do it just as easy with some cutoff wheels and a drill.
Burning Brakes
Joined: May 2006
Posts: 857
Likes: 1
From: Morrisonville Illinios
As suggested use an angle grinder or a small jig saw. Cut it right were it meets the top of the filter (one big square hole). As for the rockers I went with some self alineing roller rockers and reused the guide plates. you will have to grind off the tabs under the valve covers or use some tall covers if you want. The downside withsome of the taller valve covers is that you will have to remove them if you want to get to some of the bolts on the intake. wro87