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Discussion Starter #1
Hello,

Had a search but didn't bring anything back.

Can anyone recommend me a sports cat for my FN2? I understand it has to have Type Approval? Also how likely is a sports cat to fail an MOT?

Also if anyone has any before and after dyno figures from a FN2 showing gains that would be great. :popcorn2:

Thanks in advanced.
 

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BASTUCK
Part No. HOCC/FK-RKAT. Sport catalytic converter (without TÜV approval) only for Typ R


QUANTUMAUTOSPORT:
- Sports 200 cell cat: 350€
Information to the TÜV entry: TÜV entry after §21 necessarily.
Delivery time about 2-4 weeks


SUPERSRINT:

Connecting pipe with metallic kat.
(For OEM manifold)
reference: 925421
oficial price: £1,015.14
Price at Sportech Import: 1318€ (VAT & postage included)
Price at autohispania.com: 913€ (VAT & postage included)
 

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Its certainly the cheapest option!

The piper seems good value to me. I don't have any empirical data of before/after with the header as so many things went on at the same time.

Cats generally are not restrictive at full flow but can cause a restriction at lower flow rates, which is reflected in a reduction in torque. The main issue is the manifold in my opinion, and the piper is a compromise in that respect because the primaries are shorter than those of, say, the Toda. This will result in different pulse-tuning characteristics, but what that translates to I can't say as nobody has independently tested both together on the same car.

From various engine specialists I know they said the Piper looked better than stock, but not as good as the Toda. Piper claim good gains though, and they are a reputable company that has been around along time. Their EP3 manifold had very good reviews.

Someone on here (I forget who) has fitted a cat to the Toda somehow, so that is an option, albeit an expensive one.

There is always the Mugen... but it is crazy expensive.

I just took the view that I'd rather compromise a little bit and stay legal.
 

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Discussion Starter #7
anyone got any dynos before and after mugen manifold?
 

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Someone on here (I forget who) has fitted a cat to the Toda somehow, so that is an option, albeit an expensive one.

Clicky with piccy.


It sounds like a good idea, mating a Toda manifold to a cat to make it legal.

But i imagine this setup will compromise some of the bhp gains you would've made without the cat, i.e. does this still make economic sense when you have the option of the piper manifold (considering how much a Toda will cost)?
 

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Clicky with piccy.

It sounds like a good idea, mating a Toda manifold to a cat to make it legal.

But i imagine this setup will compromise some of the bhp gains you would've made without the cat, i.e. does this still make economic sense when you have the option of the piper manifold (considering how much a Toda will cost)?
Well, its obvious it will loose HP, but you still retain the FULL manifold design and the full length of the runners, so, it will still have a very good power line..
 

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Discussion Starter #18
Thanks for everyones help so far, would like to see some before after dynos of each system.
 

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Thanks for everyones help so far, would like to see some before after dynos of each system.
If you are refering to dynos with cat..... Dont think you will be lucky there!!!

There is from Mugen and Piper... but thats it i think..
 

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Discussion Starter #20
Hi everyone I ordered the TODA manifold tonight, given up on the idea of sports cat. Thanks for all your help
 
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