hgt,cat

[livio]

ive a cat back power flow but i want to change the cat for another box will it give more power

 

[dom]

JUST FINISHED FITTING ONE!!!!

i've just fitted a magnex cat replacement pipe to my hgt. the exhaust is otherwise standard - i didn't want anything too noisy, and the cat is the most restrictive part of the system so i thought i'd start there. initial impressions aren't too good, there's a lot of noise increase, i suppose the cat acts as another silencer, its not a nice noise either, farty is the only word to desribe it! the fit was pretty poor as well!
on the plus side the car does feel more responsive, but i'll let you know after i've given if a good thrash tommorow, it could be worth a few horsepower, maybe more with a full system ,
cost was 60 quid so not bad if it lives up to it's promise. i'll keep you posted.
dom.

 

[russ]

re cat replacement

Dom, is the replacement suitable for 100 sx models and how easy will it be to replace original cat come MOT time?
Cheers,

Russ

 

[dom]

cat replacement pipe

the cat is easy to remove 2 bolts and a u-clamp, if you've got a set of ramps 20 mins maximum provided they're not siezed of course, shouldn't be a problem on a younger car. as for the 100sx - i'm not sure if a direct replacement is available, try www.magnex.co.uk or road runner motorsport on 0115 978 1173, if not, it should only take an engineer or someone handy with a mig welder half an hour to knock one up, use your existing cat as a blue-print once you've got it off.
the perormance on my car has definately improved, i'd say it's worth about 5-6 hp on the hgt, well worth the money, the farty noise was traced to a loose baffle in the mid box, i probably did it when i got a bit handy with the hammer when taking the cat off - oh well, looks like i'll have to have a complete system after all, what a shame, good excuse to tell the girl friend!
hope this helps
dom

 

[russ]

cheers dom

that's a great help.

Russ