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thanks guys:)

i have a de cat and full system on my mk 2 172 cup, 2.5 inch pipework with no silencer and have a lack of back pressure, i have considerd fitting a silencer to increase back pressure but have been advised that the best solution would be to get a rolling road remap not to increse back pressure...

so how would you reccomend increasing back pressure? do i need a silencer? what size or kind? thanks for help!

hard to tell, the noise makes you think youre going faster, don think ive lost power, well not enough to feel but havent gained any either! my mates keep sayin i need a silencer to increase back pressure and improve performance of engine but none of them can tell me what size or kind or where to...

apparently they are excellent, my flatmate took my car into work (hes a mechanic) and all th others were very very impressed with the quality of the job and skill of the welding, sounds awesome just worried about back pressure issue!!

i had one made and fitted by custo chrome in glasgow

i had a custom made exaust fitted to my mk2 172 cup last week, ive got a straight thru decat (no silencer) and 2.5 inch pipework single exit exaust also withiout silencer, does this cause a problem with lack of backpressure in engine? if so what size/kind of silencer should i get fitted to solve...

i have recently orderd a set of eibach sportlines for my mk2 172 cup, unfortunately i have been sent the proline kit!! dont know wheather to send it back or just keep it, wanted the bigger drop but im a very imatient person :) if anybody has got any pics or can direct me to pics of a 172cup on...