SS#502

I believe one of my two have blown out and looking to see who's running High Flow Cats on their car and what are the gains or power losses you've had. Does anyone have dyno sheets to prove gains with the different brands out there?

Elliott's94Z

iTrader: (12)

Best High flow cats avail
http://www.frozenboost.com/product_i...4dc11f7f10267a

hitmanws6

iTrader: (20)

a good pair of high flow cats will lose 1rwhp to a straight ORY

SoxXpupPeT

iTrader: (34)

hahaha x2

nik1703

Pretty cheap cat there. You'll pass smog no problem!

merim123

iTrader: (11)

i asked the same question on here and got the frozen boost responses. It is an interesting concept. however, i can't stand the stink of no cats, especially on me after I'm done driving the car, so I went with the LG 3" cats which are slip on and didn't need welding. Also, metallic substrate. They are 150/each for the 3" version and 200 for the 2 1/2" versions. I'm planning install this weekend...

spudnick3119

I have two metallic Thunderbolt cats welded into my y-pipe and they seem to be working fine for me. I think they were ~$50 each.

DriftR

iTrader: (4)

I have the single cat on my 93 and replaced it with a "High Flow" Magnaflow and am very happy. I believe it flows better than stock. Exhaust note from cat back got a little louder!
I have seen others recommend it as well. Passed Emmisions easily. Not sure about metal substrate.

86formula

iTrader: (3)

+1 just get it tuned out, itll cost you less then buying them

JB_97ws6TA

iTrader: (6)

I had magnaflow with ORY then had to throw in a magnaflow high flow cat and it actually helped me out a little down low with the added backpressure but now my car is whisper quiet compared to what it was and I hate it

B4CZR2

cats? what are those?! ha ha.... the only downside to it is that it smells like a lawn mower

99bowtieZ

I lost my kitties... $25 to get rear o2s out, can't beat it.

9D4Z28

i just got a 3 inch higflow cat and 2 1/4 inch y pipe from manifolds. i got 7 hp to the wheels form it. the cars a 94 z28

9D4Z28

!!!!!!

SS#502

Looks like there are some mixed issues here. So if I decide to delete the cats, do I have to send the PCM off to a tuner or what?

integraxtc

iTrader: (11)

I got magnaflow ones too. The reason I went w/ them is because of the smell.

Working great.

99bowtieZ

You don't have to, but it will set off your SES light.

wrd1972

iTrader: (12)

I lost 7 RWHP with my old Pypes mini cats. Plus it made a small but ugly dip in the torque curve. All in all, not much loss.

SS#502

Thanks for the info guys! The last couple of days the cars been in the garage and I've been gutting out the cats while I have her taken apart. I think I'll get some headers and a y-pipe here in the next couple of weeks.....

ADM

This is something I have been looking for to fool the inspectors that my car has cats, even though they don't do any emissions tests, a visual is a must.

I am buying 2 and placing them right into the Y-pipe!