c20xe performance manifold?

[yayoboy]

has any1 got any experience with these?
http://cgi.ebay.co.uk/VAUXHALL-ASTRA-MK3-GSI-C20XE-16V-RACE-EXHAUST-MANIFOLD_W0QQitemZ350197604781QQcmdZViewItemQQptZU K_CarsParts_Vehicles_CarParts_SM?hash=item51896761 ad&_trksid=p3286.c0.m14&_trkparms=72%3A1689%7C66%3A2%7C65%3A12%7C39%3A1%7C 240%3A1318%7C301%3A1%7C293%3A1%7C294%3A50

[philip]

for a good budget manifold the autpsprint ones are good. Al from vauxsport had one, but not sure if he had to mod it or not though!

[djbrowney]

http://www.autosprint.co.uk/?p=p_40

i would asume is going on a nova so it going to be moded any way philip

[Nobby]

i was going to ask the same question

[Graeme]

It looks like a copy of the Magnex 4-1 that I have and fooking massive in comparison to an original one. Check out the one gregvaux has for sale and you can see the difference (clicky (http://www.pngclub.com/forum/showthread.php?t=119359)), does hang a lot lower than a standard one if you running a low car

[Rich]

I had a 4-1 magnex on my old nova, used to catch on everything it was so low. Good manifolds, much better than standard ones

[Adam]

When you compare any aftermarket manifold to the std xe one you can really see how tiny and sh**e the std one is lol

[sparkie1401]

whats wrong with the standard manifold???????? ois it really that restrictive????????????

[Rich]

Take a look at ones next time you get the chance, you would probably get more power making one out of mcdonalds drinking straws lol

They are squashed where they go from 2-1. They very early astra ones arent as bad ive noticed, still small bore though

[Adam]

whats wrong with the standard manifold???????? ois it really that restrictive????????????
Tiny pipework, and badly made where they go from 4-2,and 2-1.

For a std manifold they are ok compared to other engines cast iron jobbies. But if you do any engine mods, a decent manifold would be on the list

[yayoboy]

yeah its going on a nova, i was gonna get the ashley one the noticed this in s/s, and i dont really wanna pay 450 for a lexmaul s/s one. is the autosprint one s/s? engine spec im building is pretty high...

[Adam]

The AS one is mild steel, but thats reflected in the price.

[yayoboy]

ok does any1 have a recommendation on what s/s manifold to go for, high spec engine going to be running jenvey quad bodies? cheers

[Graeme]

I really rate my Magnex for build quality and I might be wrong but it seems to of shifted the peak power higher up the revs but mine is relatively standard.