MK5 Golf GTI

All Things Mk5 => Modifications & Technical Area => Performance Modifications => Topic started by: anderson9 on February 07, 2015, 02:04:21 pm

Title: 3" down pipe or 2.5"
Post by: anderson9 on February 07, 2015, 02:04:21 pm

What's better for sound/performance which one will I get more gains with ?

Title: Re: 3" down pipe or 2.5"
Post by: akbarirfan on February 07, 2015, 02:12:23 pm

3" provides better air flow so should result in better performance and potentially a few pops and bangs!

Title: Re: 3" down pipe or 2.5"
Post by: anderson9 on February 07, 2015, 02:37:57 pm

Thanks, would a 2.5" pop and bang as well ?

Title: Re: 3" down pipe or 2.5"
Post by: anderson9 on February 08, 2015, 04:43:43 pm

Anybody else got any information on this?

Title: Re: 3" down pipe or 2.5"
Post by: Hurdy on February 09, 2015, 09:43:15 pm

What power level are you at?

You should be aiming at a 2.75" system at least on K03 and 3" with a K04, 3.5" down pipe on anything over a K04. 600bhp and you will need a 4" system.

Title: Re: 3" down pipe or 2.5"
Post by: rich83 on February 09, 2015, 09:45:53 pm

3" won't pop and bang if there is a cat present.