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JR (multilayer gauze and wire air filter; K&N is similar)
Pros -
More air flow than foam filters.
Last basically forever with proper cleaning.
Typically less expensive to buy than foam filters.
Cons -
Not as effiecient at filtering very small particulates (very fine dust) as paper or foam.
Noticably more turbo noise than stock paper filter (well maybe not a con if you like that stuff).
ITG (multilayer foam air filter: Amsoil is similar)
Pros -
Turbo noise similar to stock paper filter.
Better filtering of small particulates than gauze (like very fine dust).
Cons -
Less air flow than gauze filters.
Much harder to clean throughly than gauze filters.
More expensive to buy than gauze filters.
Personally, I use the ITG due to the turbo noise issue. I have dyno'd my car at about 193 HP and 214.8 lb-ft Torque at the wheels. That is about 230 HP and 250 lb-ft Torque at the crank.
Rob Mustard(aka REM in Seattle)
1998 Saab 900SET; 5-door; Automatic; 69,000 miles
1991 Alfa Romeo Spider; 5-speed; 96,000 miles
1984 Saab 900T; 3-door; 5-speed; 242,000 miles (RIP)
1998 SAAB 900SET UPGRADES
ENGINE
-SpeedParts ‘Stage 2’ Engine Control Unit (ECU).
-Saab stainless steel sport exhaust with added center resonator.
-Forge piston type boost pressure by-pass/diverter valve.
-3” inlet tube to factory airbox with ITG performance foam air filter.
-Smoothed/ported throttle body transition casting and removed turbocharger outlet tube ‘silencer’.
-Thermo-Tec ‘Thermo Shield’ insulated intercooler inlet and outlet tubes.
SUSPENSION
-205/55-WR16 Dunlop SP Sport 5000 tires.
-Swedish Auto Specialties 22mm (7/8”) rear anti-sway bar.
-Koni Sport adjustable front struts and rear shock absorbers.
-Abbot Racing polyurethane tracking control arm bushings.
-Abbott Racing steering rack brace.
LIGHTING
-European E-code headlights with Philips ‘VisionPlus’ halogen 60/55 watt H4 bulbs.
AUDIO
-Infinity Kappa speakers – Model 32.1cf 3.5” 2-way speakers in the dash, Model 693.1i 6”x9” 3-way speakers in the rear parcel shelf, and Model 65.1mb 6.5” mid-bass speakers in the front doors.
-Dynamat ‘Super’ & Dynamat ‘Premium’ sound deadening material in doors and rear cargo area.
posted by 24.16.197...
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