# Xover /DP /retune

**URL:** <https://forums.speedlife.net/t/xover-dp-retune/244419>\
**Category:** Shift518 Automotive\
**Created:** [May 27, 2009, 7:47pm UTC](https://forums.speedlife.net/t/xover-dp-retune/244419 "2009-05-27T19:47:55Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![MclarenGP](https://avatars.discourse-cdn.com/v4/letter/m/57b2e6/32.png) [@MclarenGP](https://forums.speedlife.net/u/MclarenGP)\
**Post date:** [May 27, 2009, 7:47pm UTC](https://forums.speedlife.net/t/xover-dp-retune/244419/1 "2009-05-27T19:47:55Z")

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how bad does using a bigger xover and DP throw off the tune? im going to be using a different tune anyway i was just kinda curious.

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**Author:** ![Mk4\_30R\_Ban](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mk4_30r_ban/32/6347_2.png) [@Mk4\_30R\_Ban](https://forums.speedlife.net/u/Mk4_30R_Ban)\
**Post date:** [May 27, 2009, 7:58pm UTC](https://forums.speedlife.net/t/xover-dp-retune/244419/2 "2009-05-27T19:58:06Z")

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faster you can spool the turbo, the sooner you get boost. so the values will be thrown off, if your car has an adaptive ecu it might relearn it, but i doubt it does.

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<div class="post-metadata">

**Author:** ![MclarenGP](https://avatars.discourse-cdn.com/v4/letter/m/57b2e6/32.png) [@MclarenGP](https://forums.speedlife.net/u/MclarenGP)\
**Post date:** [May 27, 2009, 8:09pm UTC](https://forums.speedlife.net/t/xover-dp-retune/244419/3 "2009-05-27T20:09:29Z")

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well some say a bigger diameter Xover helps spool up, some say smaller diameter creates velocity which in turn increases spool up so i figure a slight upgrade i couldnt go wrong maybe just increase flow enough before it throws off values like you say.