Can't find a CatBack
Thread Starter
Supreme Member

Joined: Aug 2001
Posts: 2,136
Likes: 2
From: Costal Alabama
Car: 1989 Iroc-Z
Engine: 350, ZZ4 equivalent
Transmission: Pro-Built Road Race 700R4
Axle/Gears: 3.23 Dana 44
Can't find a CatBack
I am having a hard time finding anyone who makes a catback for my car. I have an 89 IROC 350 single cat VIN 8. The only company that makes an exhaust for a VIN 8 car that I could find was Flowmaster. Is there anyone else that makes Catbacks for my car?
Also does anyone know what size pipe I have going from my cat to my muffler?
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1989 Iroc-Z 5.7 350, Blue, T-Tops
Lightly Moded:
Edelbrock Headers, Rebuilt B&M 700R-4 Tranny, Higher Stall Torque Converter, Airfoil, 3.4 w\posi, K&N's, Ported & Polished Plenum
-- Blue LED Bakelite Dash & Climate Control
- I am just some 17 Year old spending every dollar I make on my car.
Also does anyone know what size pipe I have going from my cat to my muffler?
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1989 Iroc-Z 5.7 350, Blue, T-Tops
Lightly Moded:
Edelbrock Headers, Rebuilt B&M 700R-4 Tranny, Higher Stall Torque Converter, Airfoil, 3.4 w\posi, K&N's, Ported & Polished Plenum
-- Blue LED Bakelite Dash & Climate Control
- I am just some 17 Year old spending every dollar I make on my car.
Supreme Member
iTrader: (2)
Joined: Nov 2001
Posts: 1,602
Likes: 0
From: Lakewood, CO
Car: 1994 Jeep Wrangler
um.... dynomax, hooker, edebrock to name a few.... i happen to b partial to flowmaster tho.
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Bone stock blue TPI 85' Z28 42k original miles.
My Ride ---> https://www.thirdgen.org/rides/index...ew&rideid=8141
*previous car: lightly moded 89' Formula 350
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Bone stock blue TPI 85' Z28 42k original miles.
My Ride ---> https://www.thirdgen.org/rides/index...ew&rideid=8141
*previous car: lightly moded 89' Formula 350
umm
yeaaa
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-Tas
'89 Formula WS-6
305, TBI, 700R4, P.A.W. 14x3 open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips, Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248)
Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options
yeaaa------------------
-Tas
'89 Formula WS-6
305, TBI, 700R4, P.A.W. 14x3 open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips, Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248)
Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options
Thread Starter
Supreme Member

Joined: Aug 2001
Posts: 2,136
Likes: 2
From: Costal Alabama
Car: 1989 Iroc-Z
Engine: 350, ZZ4 equivalent
Transmission: Pro-Built Road Race 700R4
Axle/Gears: 3.23 Dana 44
hooker doesn't make a catback for a 350 or atleast Jegs and summit only sell on for the 305.
yes they do, you need to find the correct part numbers and then do a search on summit and jegs. slp makes a nice 1, flowmaster has a nice 3in. inlet, dual 3in outlet i have been looking at. hooker sounds pretty nice and is sure cheap at 260 and MAC flowtech which i am just starting to really look into seems decent.
flowmaster with dual 2.5 in. outlets:
hok-16823 is the number for the hooker catback at summit it will only give you the price though checkout hookers site for system details. its 3in all the way to the muffler which is the main thing.
[This message has been edited by turtle (edited November 25, 2001).]
flowmaster with dual 2.5 in. outlets:
hok-16823 is the number for the hooker catback at summit it will only give you the price though checkout hookers site for system details. its 3in all the way to the muffler which is the main thing.
[This message has been edited by turtle (edited November 25, 2001).]
Supreme Member
Joined: Apr 2001
Posts: 1,715
Likes: 0
From: Stouffville, Ontario
Car: 83WS6TA
Engine: ZZ4
Transmission: TH350C
Axle/Gears: 3:23
This is from the sheet that came with mine:
Part No. 16823 cat back; 1986 - 92 Camaro; 305/350 engine codes G, F and 8.
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I was going faster than I'd ever gone before but then I fell off.
Part No. 16823 cat back; 1986 - 92 Camaro; 305/350 engine codes G, F and 8.
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I was going faster than I'd ever gone before but then I fell off.
its only hollow piping, you're not buildig a house. It hard to find catbacks for dual cat cars because there is a Y pipe behind the cats. Cut the cat flange from a normal catback, get the right size reducer and hook them up with clamps. Hooker 3" catback can be had for $200 for older 3rdgens. It has the 4 bolt cat flange. Just cut that off and have get a 3" to 2.75" adapter or have a muffler shop fix it for $25
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-Tas
'89 Formula WS-6
305, TBI, 700R4, P.A.W. 14x3 open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips, Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248)
Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options
------------------
-Tas
'89 Formula WS-6
305, TBI, 700R4, P.A.W. 14x3 open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips, Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248)
Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options
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Supreme Member

Joined: Jan 2001
Posts: 7,164
Likes: 1
From: Someone owes me 10,000 posts
Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
I got the $200 Hooker and had it welded on.
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2 Tickets to game= $250
Gas= $20
Sitting 20ft. from MJ= Priceless
'86 IROC T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK HEADERS Hooker CatBack
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
160* Stat, just switched to 180* b/c of winter coming and going to college in the mts.
3:73 Posi Rebuilt 700R4
B&M Megashifter, 5" Autometer Tach w/shift lite
------------------
2 Tickets to game= $250
Gas= $20
Sitting 20ft. from MJ= Priceless
'86 IROC T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK HEADERS Hooker CatBack
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
160* Stat, just switched to 180* b/c of winter coming and going to college in the mts.
3:73 Posi Rebuilt 700R4
B&M Megashifter, 5" Autometer Tach w/shift lite
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