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MG MGF Technical - Scorpion performance exhaust

I am considering having a scorpion performance
exhaust fitted to my '97 F but not knowing much about cars, I was wondering

Do I keep the original catalytic converter?

Does it come complete with its own or is it bypassed?

Will it increase BHP? and if so by how much?

Do I have to inform my insurance company?

Are there any others on the market I should consider, bearing in mind I would prefer one that isn't too noisy

Cheers

Jo
Jo Chapman

Hi Jo,
Fitted a scorpion along with a K&N to my tf 6 months ago sounds great not too noisy. You keep your own cat.
All the best Dave.
D.A. GILBERT

Yep, Had mine a few months now, just the right sound but not too loud! Nice finnish to the tailpipes.

Colin.
C T Walker-White

Cheers guys,

I fitted a K&N last year, looks like it Scorpion next followed by 52mm throttle body.

Its true what they say " once you pass over to the dark side, theres no return."

Jo
Jo Chapman

That is the joy of owning an MGF
Yigit

>> Do I keep the original catalytic converter? <<

I would if I were you. There isn't much gain to be had from replacing it with a bypass pipe, and it saves hastle come MOT time.

See here: http://www.mgf.ultimatemg.com/group2/exhaust/catalysts.htm

>> Does it come complete with its own or is it bypassed? <<

No, the exhaust is simply a back box that bolts to the catalyst. There are two versions of the exhaust system fitted to the MGF - yours is an early version. Be sure to make the supplier aware of this.

More information on the exhaust system here: http://www.mgf.ultimatemg.com/group2/exhaust/exhaust_differences.htm

>> Will it increase BHP? and if so by how much? <<

Unfortunately, Scorpion was able to provide us with a system in time for our tests for MG World, but experience tells us that there isn't much bhp to be gained from swapping exhaust systems - perhaps up to 5 bhp and 5 lb.ft torque if you choose a good one. :o)

>> Do I have to inform my insurance company? <<

Yes.

>> Are there any others on the market I should consider, bearing in mind I would prefer one that isn't too noisy <<

Yes - see here for a list of the systems we tested: http://www.mgf.ultimatemg.com/group2/exhaust/exhaust_test_results.htm

Hope this helps
Rob Bell

Like you Jo, I'm thinking about upgrading the exhaust on my 03my TF135 - Probably to a Mike Satur Daytona. However, I'm delaying the upgrade until the factory fit exhaust packs up. Does anyone know how long I might have to wait?

I recall that the exhaust on my old Golf GTI was 'engineered' to last 4 years/80k miles - and it started to blow at 4 years + 1 month. Does the TF system have an engineered lifespan?

Regards, Bob
R Thompson

My original has lasted nearly 9 years and 73000 miles, with only 3 days left until a new Milltek SP is fitted!
( Note; the original exhaust is still OK )
Mike

My 1995 MGF still has the original exhaust.
Mike Howlett

I'm certain that i read that there had been a change in material spec - but i'm not sure when, maybe around 2000 when the design changed - from stainless to mild. The exhaust on my 2001 F rotted in half after 4 years and 30k

mike
mike roberts

Thanks for the links Rob, I found them very informative.
Jo Chapman

Jo, you're welcome.

Bob, early systems had a superior material specification - as Mike H and Mike R's differing experience shows. The vast majority of aftermarket systems are engineered out of high-quality stainless steel - so will probably outlive the car (even if the sound-deadening material that they contain will have long blown away out of the pipes...)

I have a MS Daytona (different end pipes - I think it's called 'Imola') - and am very happy with it. Not too loud, but sounds good when you're tanking along! ;o)
Rob Bell

This thread was discussed between 06/04/2006 and 12/04/2006

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