De cat - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

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eastend

Member

Registered: 13th Mar 07
Location: Taunton, Somerset
User status: Offline

19th Jul 07 at 15:33

hi i know replacing the cat with a de cat pipe will make my car very loud and probably wont pass the MOT. so i dont want one because of the noise.

found this sports catalyst by janspeed and i says it will pass the mot, will it still improve performance?? will it still be loud??

SS731SC Vauxhall Corsa B Sport 16V Sports Catalyst - 1988
https://www.janspeed.com/comersus/store/comersus_viewItem.asp?idProduct=3482

thanks tom

Dean_W

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Registered: 13th Dec 05
Location: Downham Market, Norfolk
User status: Offline

19th Jul 07 at 15:36

A de-cat won't make your car loud. Depends if it has a built in silencer.

eastend

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Registered: 13th Mar 07
Location: Taunton, Somerset
User status: Offline

19th Jul 07 at 15:38

ok, can you name some places that sell decats with silencers please??

also what is the difference between a de-cat and a sports catalyst??

Dean_W

Member

Registered: 13th Dec 05
Location: Downham Market, Norfolk
User status: Offline

19th Jul 07 at 15:40

Janspeed do one with a silencer.

A sports catalyst still has the catalyser in the pipe to lower the emissions. But, it has less DPI than a standard one. This enables gases to flow quicker. (i'm sure thats correct)

eastend

Member

Registered: 13th Mar 07
Location: Taunton, Somerset
User status: Offline

19th Jul 07 at 15:41

so is it best to get a de cat or a sports catalyst??

Dean_W

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Registered: 13th Dec 05
Location: Downham Market, Norfolk
User status: Offline

19th Jul 07 at 15:42

Sports cat fro the best of both worlds IMO.

eastend

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Registered: 13th Mar 07
Location: Taunton, Somerset
User status: Offline

19th Jul 07 at 15:44

cheers mate

do you know how much a sport cat is from janspeed roughly as it doesnt say on their site

Dean_W

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Registered: 13th Dec 05
Location: Downham Market, Norfolk
User status: Offline

19th Jul 07 at 15:45

Not too sure mate.

eastend

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Registered: 13th Mar 07
Location: Taunton, Somerset
User status: Offline

19th Jul 07 at 15:49

k think i found out from another site they are like £230

lol, so the janspeed de cat pipe will have a silencer in yea??

[Edited on 19-07-2007 by eastend]

Dean_W

Member

Registered: 13th Dec 05
Location: Downham Market, Norfolk
User status: Offline

19th Jul 07 at 15:50

Yep. If it's a straight piece of tube, it's a stright through jobbie. If it's fat it's got a silencer.

pagan_88

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Registered: 28th Dec 06
User status: Offline

19th Jul 07 at 15:54

Hoffman sports cat imo. £170 and has BHP gains also (claim by the company, not me!) Im getting mine next month, fuck having to change the decat every MOT :/

eastend

Member

Registered: 13th Mar 07
Location: Taunton, Somerset
User status: Offline

19th Jul 07 at 15:59

so a sports cat wont affect sound, just performance??

Vaux Lad

Member

Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline

19th Jul 07 at 16:40

I removed the cat on my old engine, and it sounded a lot louder.

Look inside a CAT and you'll realise why it will sounded louder.

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