172 sports cat or 182 manifold and sports cat?

[Gez08]

What are the pros and cons with a 172 sports cat on the 4-1manifold or a 182 manifold with ktecs sports cat, its for my 172 cup (i dont want to decat btw)

 

[BenR]

Keep the 4-1......it always seems the stronger performer.

 

[Fred@BTM]

^agree (and get a decat)

 

[Gez08]

if i fitted a decat, would the garage where i would take it for an mot fit the original cat before the mot and then fit the decat after the mot or is that illegal?

 

[TOGUSA]

Keep the 4-1......it always seems the stronger performer.

hows that so?

when ever iv seen a performance zorst manifold its been 4-2-1,
and why would renualt go for that same option for the 182?

how dose it come out over the 4-2-1 from the 182?

 

[BenR]

You cant pass judgement just because you've seen performance exhausts with 4-2-1.

Tell F1 their 4-1 is pointless

Its just our findings........they never, ironically, have as strong a midrange.

 

[Tucker]

i have a sports cat and i wish i had burnt £120 instead of buying it. go with a silenced decat and full system dude

 

[caister]

I found my sports cat freed the engine up quite a bit. But I would never pay the full price for one, I was just lucky some guy advertised it wrong on ebay

 

[caister]

Doesn't a 4-1 manifold give higher peak power and 4-2-1 is suppossed to give a better midrange? Or is it the other way round?

EDIT: Sorry for not editing my other post. Senior moment!

 

[BenR]

Correct.....but that is just the very basic basic basic rule and it can very easily be thrown out the window.

Its about as firm a rule as summers in the UK are pleasant.

 

[caister]

^^ Had a feeling it would be!

 

[Andyman]

Wouldnt bother with a sports cat. Too much money for nothing. Hardcore or nowt!

If you were to go for a 182 manifold its only a few minutes job to change a decat unlike the 4-1 set up you know

On the road, i felt the 182 mani gave a lot stronger pull top end of the rev range than the 4-1 so from my experience would recommend it.

 

[jmsonline]

Ive got a sports cat , had a decat previously and noticed no difference in gains just alot less hassle come mot time