Hi Flow Cat

99Camaro99
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#1

Hi Flow Cat

08-22-2002, 03:32 PM

If someone (me) was to have a complete catback with muffler, adding a hiflow cat would make how much of a difference in performance/sound? BTW, my stock cat has it ripped open to 3" on the outlet to fit the 2.75" I-pipe. It's almost like a semi-hi flo cat to begin with. Opinions...
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pgriffith

Here to Stay

F-body Parking Only

Join Date: Aug 2001

Posts: 2934
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#2

08-22-2002, 04:11 PM

Just because its 3 inch doesnt make it high flow. Have you ever looked inside a high flow cat and compared it to your stock cat?
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mickeys

Lookin' for 13's

Project F-body

Join Date: Mar 2002

Posts: 152
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#3

08-22-2002, 06:29 PM

it may sound better or worse... in my case, worse. deeper at idle, but super-ricey at high rpms. maybe it will break in.

\'02 firebird 5spd manual (pewter)<br />mods: whisper lid, spintech muffer with 3\" piping, strut tower brace, \"free ram air\", k&n filter, SLP CAI - next mods: jetchip stage II, lowering springs
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