Hi all,

It's time to deal with my hollowed out cat...I have a flowmaster muff and would love to hear what is considered to be the best high flow cat out there.

thx!!

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1987 IROC-Z
Excellent condition, 350, Auto, Yellow, all options including T-tops & black/gray custom deluxe interior w/convenience package, gold accent wheels, JVC, Pioneer, Kicker, Polk stereo, stage 2 chip, K&N’s, Flowmaster, 160 degree thermostat, yellow neon under carriage lights, adult owned, garaged, 92k, motor, transmission and rear end rebuilt at 46k, new struts, shocks, brakes, master cylinder, power antenna, battery, full tune up, and more.

 

Catco Hi-Flow from summitracing.com or discountconverters.com (80-90) OR a Dynomax superconverter from jegs.com (100-120).
I personally am going to buy a hi flow catco converter from discountconverters.com because i hear that they are good and they are alittle cheaper than the dynomax ones.

1990 RS TBI

 

Thanks - I ordered the CatCo from Summit

 

how is it?

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91 FireBird 305 V-8
Edelbrock Catback, Fourth Gen Console. i have six cupholders. all for starbucks!
ghetto rigged cold air intake,
GheTTo Riggers INC.
We Make Mcgyver look Like Crap
God Created The Earth, And Then Turned Up The Bass

 

Great! I'm very happy with it...passed emissions now and runs a tad smoother...and I noticed zero loss in power..

 

howm uch was it?

(FASt relply, lol)

 

I'd go with Random Technologies.

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89 RS

STILL Looking For:
An 87 IROC-Z28 350 TPI

 

$115 or so from Summit.

 

Catco has a universal 3" in/out w/air for $50 from summit. Its about 8" shorter than stock. I bought that, cut off the flange, and cut off the flange on my Force 2 system. The 3" i-pipe fit directly into the 3" ID cat, then I reduced it to 2.25 and ran that to the y-pipe.

Could I have cut out those screens that came with the cat to improve air flow? I tohught about it but just decided to let bygones be bygones.