I have a Formula with a Moded 350TPI-and am in need of a new cat-back system.
I have the edelbrock tes headers and y pipe,and a gutted cat.
the motor has a LT4 hotcam,24# injectors,52mm throttle body,K&N TB mounted filter,ads superchip,
the motor is out of a 89 vette so has the aluminum heads.
something to give me nice power and a nice sound.

Opinions welcome
Thanx

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84 FIREBIRD-(undergoing rebuild)2.8 V6,5spd,T-Top
90 Formula Modded 350 TPI T-Top
WANTED:82-84 Firebird 2.5 4cyl,4spd-Just Cause

Previous 3rd gen's
83 Trans-Am 305 CFI auto T-TOP
84 Firebird 305 H.O. auto HARDTOP
87 Firebird 2.8 V-6 auto HARDTOP

 

Well I LOVE the way my 4thgen z28 rear pipes on my Formula. I think you should put some on whatever catback you get

 

forgot sig

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-Tas
'89 Formula WS-6

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

Soon to be installed:
Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248), Catco 3" cat, and injector spacer.

Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options
AOL IM: superGRtaz

 

Flowmaster.

 

I actually have 4th gen Z28 tips on my car now,and i personally don't like them (they are still on from when i bought it 3 1/2 years ago the previous owner put them on)..

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84 FIREBIRD-(undergoing rebuild)2.8 V6,5spd,T-Top
90 Formula Modded 350 TPI T-Top
WANTED:82-84 Firebird 2.5 4cyl,4spd-Just Cause

Previous 3rd gen's
83 Trans-Am 305 CFI auto T-TOP
84 Firebird 305 H.O. auto HARDTOP
87 Firebird 2.8 V-6 auto HARDTOP