In JEGS it says that the Flowmaster 80 Series makes 30 more HP and 40 more Torque!!!!


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Looking For:

87 IROC-Z 350 TPI
84 TRANS AM 305 H.O.

 

Its called advertising. They put a stock restrictive exhaust on a big block, dyno it, then remove it and replace it with the Flowmaster and get that increase. A Thirdgen would be lucky to see 7hp from just a muffler swap alone.

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91 Trans Am WS6
Bright White
5.0 TPI auto
Flowmaster 3" 2 chamber catback
Trans Go shiftkit
2000 stall converter

supposed 'peanut cammed' car (yeah, right)

Built on Wednesday

 

I sure didnt gain that much with mine.

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1991 Z28 Camaro L98
5.7 T.P.I
http://www.bright.net/~rwig/BandetZ28.jpg
http://www.bright.net/~rwig/BandetZ28-2.jpg

 

I think that 30/40 is an exxageration, but it did a good deal for my friends 88 IROC 305, not bad for $80. It did more than his AFPR did and he paid about $80 for that.

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1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission with 2.77:1 Rear End

Current Mods: Edelbrock TES 1 5/8" Headers, Hooker 3" Aerochamber Cat-Back System, Performance Resource Chip with 160* Thermostat, Accel Ignition Coil, Cap, Rotor, 8.8mm Wires, K&N Filters, JET TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.

Best ET : 14.32 @ 97.7mph
(corrected for elevation)

Soon to come: LT4 HOT Cam, Air Flow Research 190cc Heads, 2800 RPM Stall Converter and SLP 3.70 Rear End Gears.