Grant Posted January 27, 2014 Share Posted January 27, 2014 On this subject, I have a very similar one to Jake, fits nicely and will be transferring it over to the M at some point. There isn't a problem running a 2.5" collector and then having the de-cat funnel down to a 2.25" is there?? Quote Link to comment Share on other sites More sharing options...
KiNK43 Posted January 27, 2014 Share Posted January 27, 2014 On this subject, I have a very similar one to Jake, fits nicely and will be transferring it over to the M at some point. There isn't a problem running a 2.5" collector and then having the de-cat funnel down to a 2.25" is there??Sounds perfect for a c4 to be honest. 2.5 all the way Is arguably a tad large for our motors. Quote Link to comment Share on other sites More sharing options...
Grant Posted January 27, 2014 Share Posted January 27, 2014 Sounds perfect for a c4 to be honest. 2.5 all the way Is arguably a tad large for our motors.i had read that they werent a great fan of 2.5" all the way .. Cheers pal Quote Link to comment Share on other sites More sharing options...
Krzys Posted January 28, 2014 Share Posted January 28, 2014 i had read that they werent a great fan of 2.5" all the way .. Cheers pal Sounds perfect for a c4 to be honest. 2.5 all the way Is arguably a tad large for our motors.You learn something new everyday! I was under the impression that 2.5" was all the way! Quote Link to comment Share on other sites More sharing options...
Grant Posted January 28, 2014 Share Posted January 28, 2014 You learn something new everyday! I was under the impression that 2.5" was all the way!I had the civic dyno'd at japfest a fee years ago and he commented in the 2.5" being too big a bore. Quote Link to comment Share on other sites More sharing options...
simpo Posted January 29, 2014 Author Share Posted January 29, 2014 I don't think it is manifolds quite a big restriction On a civic. The rest of the system is 225 so of anything would give a better flow Quote Link to comment Share on other sites More sharing options...
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