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by **trdtrueno** » Mon Sep 17, 2007 11:04 am

i was just wondering if the blacktop extracters are bigger than the silvertops??? would there any gain if i put blacktop extracters onto my silvertop??? cheers guys

by **thegreatestben** » Mon Sep 17, 2007 11:40 am

they are larger diameter, But I don't think you'd get much out of them for your time and money.

by **AceSniper** » Mon Sep 17, 2007 3:16 pm

worth doing if you have access to some or can get them cheap

by **B_giB** » Tue Sep 18, 2007 7:54 am

From what I understand, silvertop extractors are good for over 200hp...

by **frost** » Tue Sep 18, 2007 6:12 pm

also you can slot the black top exhaust mani so there is a step at the top of the port to help stop exhaust gas going back wards into the port once its out, i think the blacktop mani is about 1.5 mil larger in diameter, i know they are over kill for a standred motor but if your doing head work in the future there a pretty good investment,

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