Let Your Motor Breathe Deep!
Let Your Motor Breathe Deep!
2009-2013  LS9 ZR1 Performance Filter  $161.95
(Includes GM Filter Retainer)
* Huge power gains by simply dropping the filter in!
* We've seen increases up to 16 HP.  No tune Needed.
* Outstanding filtration.
* The only LS filter with a tapered back, for more power.
* Washable & reusable for extended, reliable service.
* Unique design creates HP, torque & quicker  response.
* Direct O.E replacement.
* NO surging
* Reinforced base prevents warping & leaks
* Sturdy stainless mesh design for high CFM
* No tuning required
* Does not void your warranty
* Comes with Stock GM retainer
Copyright 2009-2015 Attack Blue Filters
The Attack Blue direct O.E Replacement filter works extremely well in a superchargers involved!
It allows a great deal of air to flow & feed your LS9 without sacraficing filtration.   
When Magnuson Supercharger was looking for a filter for more power, they chose Attack Blue!
Receive huge rear wheel gains by simply replacing the
stock filter with an Attack Blue. No Tune Needed. Its low
restrictive open mouth & its unique tapered back is
designed to allow more free flowing air to feed your
motor! We have seen some impressive gains of 16 hp
(See the dyno sheet below).
No surging. No tune required. Just drop it in and go.
When stock filters clog, it results in a loss of power.
Attack Blue's woven cotton media & deep pleats create
a larger filtration surface which allows a
greater volume of air to move freely to your engine
while maintaining Superior filtration! Traps particles
as small as 5 microns.
The Attack Blue LS9 filter is built like a tank!
Reinforced design prevents  warping & leaking. It might be the last air filter you purchase for your Corvette.  
This filter does not void your warranty. This filter comes pre-treated. Use Attack Blue special formulated
cleaning kit to keep it like new. This filter also comes with a GM O.E filer retainer because the stock
retainer is glued to the stock filter.        Made in the USA!    
GM Filter Retainer
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