exhaust janspeed

got me self a micra now but looks like it needs a exhaust its old and rusted now i was thinking would there be any point of me buying a janspeed 1 would it really make any difference to the speed of the car or would it just be a louder noise.
 
depends. bakcbox makes no difference to power. cat back makes a bit and manifold etc makes quite a bit of difference.
 
manifold or cat back exhaust? if it another 4 branch youre after insted of janspeed, there are more money that a janspeed and quite rare. and as for a cat back system there plenty for the micra lol.
 
now ur getting a bit to techincal for me manifold cat back lol just want one thats a direct fit and sounds good so it will pass mot lol
 
u could get a brand new stainless steel universal back box of ebay for £10 and £11 postage £21 total u would just need to get a bracket welded on to go onto the backbox wich is cheap! i just got myns through today and is surprisingly good quality and looks like its gonna be a loud one :D
 
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