Original Cats or Hi Flow

[Edz_SV6]

Hey Guys

Gna put a set of pacemaker extractors in soon.
Jus wondering if i can keep the original cats in or do i need 2 get a set of high flow ones since the extractors might melt the inside of the original ones.

Thx

[VZ_commo91]

Up to you, but as it says on the site somewhere ' the standard cats are believed to be high flow, so when changing them, stick to high flow ' or something along those lines.
If you want a better note, Change the cats to a 300 or even 200 CPI. I'll be going in between there somewhere when I change mine.

Changing the headers won't make the cats melt. They might do, But I doubt it.

[Edz_SV6]

haha yea been gettin mixed responses bout the cats stuffing up wen u put in extractors.

guess ill jus keep em in and see how it goes

thx 4 the help

[Not_An_Abba_Fan]

I saw a thread on this same thing the other day.

No, your cats will not melt by fitting extractors. The extractors won't stuff the cats by themselves, just the fact that you have to reposition the factory cats back under the car and because of their size, they will sit lower and you have the potential to smash them on speed humps and the like.

[wattles]

yeah pretty sure there is one exactly the same almost lol

100cpi or 200cpi? i thinking 200?

[Vt_vic]

in ls1's the ceramic cat used to melt if you thrashed it constantly but not sure in a v6

[JShaw]

100's are illegal but unless you get EPA'd you'd never know, though i've got 200's just in case

[wattles]

how much did they cost you? did you get them off ebay?

[TI3VOM]

^^ get them off not an abba fan ^^

[wattles]

does he send them out? im in qld lol

[bigdaddycool]

I've had extractors and it's either 100 or 200cpi high flow racing cats for about a year and a half now. I'll give you some advice.

1. Pacemaker extractors rust over time. If you can have them painted in some heat resistant paint ..... to prevent rusting. The blandly light blue coat looks ok at first, trust me they rust.
2. If you get pacers, you 'have to' get new cats..... why? they are too big and the first bump you go over, they'll nearly rip off as cats with under your footwells. I didn't get my new cats used the stocks when I got mine..... took the car back the next day because I almost ripped the exhaust off going over a bump cause the front jointer to the cats caught the bump + the floor was getting hot. The stock cats are too big to be moved under the car.
3. I would probably recommend 300 cpi if you can get them (if you already have a cat back exhaust) as 100-200cpi is very loud and unfiltered. It will drastically change the note of the exhaust I had to have my whole exhaust redone twice to get it right again.
4. If you go 100-200cpi, get a good twin 2.5" cat back to match the flow of the pacers and cats. Otherwise your exhaust will cop heat faster if u cant get the the air out as fast.

.... thats my two cents.

PS. I'm pretty sure stock cats are about 400cpi

[wattles]

cheers for the info mate, gonna see what the local exhaust shop can do for me
if not i might just a set of "tiger" extractors on ebay and get my mate to put them on.. got them for my old vr and sounded great

[Edz_SV6]

thx guys

my cars isnt lowered or anythin its still stock suspension so see how that goes 4 a while..
if the cats do get ripped off then back 2 the shop lol

[JShaw]

4. If you go 100-200cpi, get a good twin 2.5" cat back to match the flow of the pacers and cats. Otherwise your exhaust will cop heat faster if u cant get the the air out as fast.

Not to start a whole "thing" here, but I've heard people on here say that a twin 2.5" would be too big? Though you do seem to know what you're talking about.

And yes, 400cpsi is what the stock cats are

[TI3VOM]

does he send them out? im in qld lol

Yeah he does mate.

[Not_An_Abba_Fan]

I do the Tiger extractors too, the manufacturer is in QLD too, so I can send them direct from the warehouse to reduce freight. I can send the cats out of the QLD warehouse as well. $195 each for 200CPSI cats and $240 for the extractors. Plus shipping.