Maxposer Posted February 16, 2013 Share Posted February 16, 2013 ok guys sorry if this has been posted .... what manifold do i buy? 2 inch collector or 2.5 inch collector? i have seen these on ebay dont know what will fit i have a toyosports exhaust system fitted and de catted with a a s/s pipe welded in these are the option i have found on ebay http://www.ebay.co.uk/itm/HONDA-CIVIC-B ... 2327f8142dhttp://www.ebay.co.uk/itm/HONDA-CIVIC-1 ... 337740cb30anyone know if either fit soz again if posted Quote Link to comment Share on other sites More sharing options...
adeel Posted February 17, 2013 Share Posted February 17, 2013 if im rite the standart size on MB is 2"but i have a 4/2/1/ 2.5" and it made a big difference so i would reccommend 2.5" from my experiencei have a 2.5" full system jdm manifold tanabe back box its amazing but LOUD Quote Link to comment Share on other sites More sharing options...
simpo Posted February 17, 2013 Share Posted February 17, 2013 Depends on what size your system is really . Also depends on Wat u want as you are watching a4-2-1 and a 4-1 Quote Link to comment Share on other sites More sharing options...
Maxposer Posted February 17, 2013 Author Share Posted February 17, 2013 Its a toyosports full system just need to know what manifold can fit if anyone has any idea and could post me a link for it please. dont know if i should go for a 421 or a 41 manifold. Cheers Quote Link to comment Share on other sites More sharing options...
NIKH25 Posted February 17, 2013 Share Posted February 17, 2013 Its a toyosports full system just need to know what manifold can fit if anyone has any idea and could post me a link for it please. dont know if i should go for a 421 or a 41 manifold. CheersIt depends what you want, 4-2-1 will give more torque and mid range power, 4-1 will give more top end power.Size wise you need check the bore size of your decat pipe. Quote Link to comment Share on other sites More sharing options...
Maxposer Posted February 17, 2013 Author Share Posted February 17, 2013 well the exhaust bolted straight onto the original cat then got that cut out so the flange is the same size as the standard cat that comes with the car. Want a 4-2-1 cat since i never take her to top speed lol so any links would be useful. Loads of wrk being carried out on her atm...vtis front and rear lip new wheels, towing hook, towing strap new black headlights, de wipered and de badged and also loss the book lock and new manifold if i can get one lol plus another respray lol Quote Link to comment Share on other sites More sharing options...
noodels Posted February 17, 2013 Share Posted February 17, 2013 dont think they make one as direct fit will have to mod cat or manifold as all other honda have rotated flanges.i modded my manifold to use oem cat ect its in my build ect. Quote Link to comment Share on other sites More sharing options...
noodels Posted February 17, 2013 Share Posted February 17, 2013 here you can see the problem viewtopic.php?f=141&t=7784&start=40 Quote Link to comment Share on other sites More sharing options...
Maxposer Posted February 17, 2013 Author Share Posted February 17, 2013 i only have a straight pipe welded onto the manifold as i got a powerflow garage to do it so i could maybe cut the manifold and weld or fit a flexy to it? Quote Link to comment Share on other sites More sharing options...
Maxposer Posted February 17, 2013 Author Share Posted February 17, 2013 but need to know what manifold fits the stud pattern on the block eg http://www.ebay.co.uk/itm/HONDA-CIVIC-B ... 2327f8142dhttp://www.ebay.co.uk/itm/HONDA-CIVIC-1 ... 337740cb30 Quote Link to comment Share on other sites More sharing options...
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