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  • New Member
  • Member For: 12y 7m 24d

Im buying an exhaust (gettin it cheap) that consists of a 4 inch dump, cat section and 2x 2.5 inch catback ive heard u need do some type of mod 2 the turbo if u put a 4 inch dump on ??? Can someone shed some light on this please and thankyou :)

im dyslexic and cannot turn off simple functions in tapatalk

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https://www.fordxr6turbo.com/forum/topic/82500-stupid-newbie-question/
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  • billet turbos and weathered engines dont mix
  • Donating Members
  • Member For: 12y 11m 25d
  • Gender: Male
  • Location: Wollongong

The turbos on xr6s overboosts because the Wastegate can't get rid if gases quick enough with a bigger exhaust. You nee to port the wastegat and get a bigger flapper, may as well change your actuator too.

  • Donating Members
  • Member For: 16y 5m 25d
  • Gender: Male
  • Location: SE Melbourne

You will need to port the exhaust housing (wastegate) so that more boost can be bled because the dump will flow a lot better causing the turbo to be over efficient.

Change the actuator if you are going to do it.

  • flame magnet
  • Gold Donating Members
  • Member For: 17y 1d
  • Gender: Male
  • Location: adelaide hills- 'race air' central

dont need to port the turbo, just get the actuator and have it tuned to keep the boost where you want it.

I havent gone down the ported turbo route yet, cbf taking it off now the bolts are staying tight... :roflmbo:

  • Bob the Freaking Builder
  • Donating Members
  • Member For: 15y 8m 4d
  • Gender: Female
  • Location: SA

yea... r u getting it tuned? if not don't bother with the exhaust coz there's no point

  • Donating Members
  • Member For: 14y 6m 28d

What model is it?

I dunno why but there was a lot of porting and flapper mods on B series but I haven't really heard much of guys in FG's doing turbo mods with dump pipe? Has this got something to do with the smaller turbo?

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