I have an 88' Iroc-Z 5.7(350) I was wondering what exhaust system i should put on. I want to do a cat-back setup, i was looking a Random Technology/Mac exhaust/Flowmaster/or any others out there! Which cat back do you recemend, i want the most HP and a good sound, louder than stock. ANY SUGGESTIONS thanks justin

 

well horse power is going to be marginal between systems. I like the sound of the hooker and flowmaster. the hooker has dual tips on each side which I don't like as much. I think the mac looks like a real nice kit but have not heard it. I want stainless so I am getting a random tech. we are trying to get a group purchase going. someone compared the sound of it to a flowmaster but I have not heard it. the one thing you have to think of is all though these nice chome tips on the cheap setups look good now two years from now they wont. I think you kind of have to decide what you what and work backwards. you like or don't like the daul tips or don't care. how important is life span of the exhaust. these kind of things.

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"I don't trust anything that bleads for five day's and doesn't die"
88 iroc slp headers,borla catback,procharger to come soon.

[This message has been edited by gearrrhead (edited March 16, 2001).]

 

I know the Random Technology one is high quality, but like the Borla system, it costs over $500. I agree with Gearrrhead, the Hooker and Flowmaster systems work well. I have been very happy with the Hooker Aerochamber cat-back I purchased from Jegs last summer for $260. It installed without any welding in about an hour and a half in my garage!

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1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission
Borg Warner 7.75" 9 Bolt Rear End

Current Mods: LT4 HOT Cam, Comp Cams 1.52:1 Roller Rocker Arms, Edelbrock TES 1 5/8" Headers, Hooker 3" Aerochamber Cat-Back System, Performance Resource Chip, 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 (w/o LT4 cam): 14.32 @ 97.7mph
(corrected for elevation)

7.5" 10 Bolt with 3.42s soon to come!

 

i personally like the magnaflow. it is not real popular with people here. but it flows awesome. and sounds great. it gets louder as you put on mods. go to magnaflow.com and do a dealer search to find out where to get it. you wont be dissatisfied. and they have a stainless steel one also now. its shiny as CHROME. looks great.


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Jarrad
1990 IROC-Z L98 350 TPI
TH-700R4
G92- 7.5" 10 Bolt 3.23gears
Bright Red Hardtop/ Grey Custom Interior
5,507 IROC's Coupes/Ttops; 2,415 5.7L IROC's Produced in 1990

DAILY DRIVER: 1991 S10 2.5L/5SPD WITH CAMARO RIMS

 

I love my system. I have Headman Headers to Flowmaster Mufflers with 4" chrome tips( no cats)

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1992 Z28 W/5.7L. Teal with unpainted cowl hood,18" Billet Specialities Rims,Eibach Sportline Springs, Leather int., B&M Mega Shifter, Headman Headers, Flows,No Cats,K&N,HyperTech air foil,Custome Burned Chip,MSD Ignition,Shift Kit, Billet Corvett Servo my Back License plate reads "ALL UL C"
Here's a pic of my car
http://www.geocities.com/jonnyarson/maro.jpg

 

I have the american thunder system from flowmaster and love it,deep throaty sound inside and out and good power gains.It also has stainless tips for a very nice appearance.Hooks up easy and not too pricey.

 

I installed a used Borla exhaust on my '86 IROC...it still had the 305 and a peanut cam at the time. It sounded great, but would sound best with a little more 'cam lope'. What I like best is the adjustability of it...it has interchangable plates you can use to bypass more or less exhaust past the muffler. It's also stainless and has dual slash-tips on each side...I bought mine used at a steal, but since it's stainless, who cares?