Swapping a 4 speed tip for a 5 speed tip

Post by **Bennoz** » Sun Jul 03, 2011 2:01 pm

Aza can probably give you some figures on 'track day cats' - he's done the before & after dyno.

Its quite substantial from what I understand, 5 or 6 killerwasps.

brent88 · Post by **brent88** » Sun Jul 03, 2011 3:32 pm

*goes out and gets jimmy bar and catalyic converter*... i mean friends cat lol

Post by **aza013** » Sun Jul 03, 2011 5:40 pm

Bennoz wrote:Aza can probably give you some figures on 'track day cats' - he's done the before & after dyno.

Its quite substantial from what I understand, 5 or 6 killerwasps.

Well it's 8- 10kws top end

But it also comes down to your other mods.

silverGPX · Post by **silverGPX** » Sun Jul 03, 2011 11:00 pm

I smashed out kates cat

and she i mean 'it' definetly feels a lot more responsive!

LOL

brent88 · Post by **brent88** » Mon Jul 04, 2011 1:09 am

silver- after i read your post in another thread rthats where i got the idea, didint realize it was so mucyh i mean if u take a resonator put larger/mandrel bent piping u dont gain that much. i know theres 1 MAJOR issue were not adressing but it need not be addresed since were talking about others cars

brent88 · Post by **brent88** » Tue Jul 05, 2011 9:16 pm

my ''friend'' estimates the power gain to be around 5-7% after 5,000rpm but about the same level of bottom end power and a slight ''whirring'' noise, maybe he could have inserted a sleeve or somthing inside the cat so the flow wasnt all retarded an getting caught in the cat?? anyway he is happy with the result

FTO AUSTRALIA

Swapping a 4 speed tip for a 5 speed tip

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Re: Swapping a 4 speed tip for a 5 speed tip

Re: Swapping a 4 speed tip for a 5 speed tip