Can Any1 help

[neil79]

I've had a cat back system fitted to my 172 a few weeks back by prospeed, looks good but iv'e seem to have lost mid and top end power, do i need a filter or a tune or something. any idea's

 

[tomhunt85]

Get it on the rollers if you think it has issues.

 

[RichMcc]

I have a prospeed and didn't notice any loss of performance, what specs did you have? bore, style etc

 

[neil79]

It's a 3in twin tail pipe with 2 and 1/4in bore

 

[pinky]

i dont know if it the same as the 1.2 16v but if you dont get the right sports cat then they run irratic.