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------ VW Jetta MK5 2008 2.5L (170HP) Tuning Software by Unitronic ------ Looking for ECU Performance Upgrades for your VW Jetta MK5 2008 2.5L? You've stumbled into the right thread! This will be the "go-to" thread for all Unitronic Engine ECU products for the VW Jetta MK5 2008 2.5L, and if...

------ VW Jetta MK5 2006 2.5L Tuning Software by Unitronic ------ Looking for ECU Performance Upgrades for your VW Jetta MK5 2006 2.5L? You've stumbled into the right thread! This will be the "go-to" thread for all Unitronic Engine ECU products for the VW Jetta MK5 2006 2.5L, and if anyone...

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Hi I have a 2001 Jetta turbo and it was running very well and it suddenly started acting up, when I would step on the gas to pass or speed up. It felt like when the turbo kicked in at a certain point it would start to hesitate big time and backfire until I eased of the gas. and then it would run...

Let me start off by telling you about my car mods that way we can rule things out APR chip ghl downpipe 2.5" boost gauge Sram intake. I recently got sick of having the cel on so I add the 42 draft design o2 spacer a week ago. Now for the symptoms. No CEL is on and no codes. Today I was...