FlowMK6
Ready to race!
Hi Flow, chances the dealer installed the UM Tune you paid for, the Canadian to US US exchange is really high.
I'm currently at my place in SC, there is a guy here with the UM 91/93 Tune and his 2.5 gurgles alot when he backs off, there is nothing wrong just unburnt fuel meeting air in an unmuffled system. You young guys get off on the sounds of open exhaust but as Guru quite accurately pointed out our normally aspirated engines require some back pressure to make power. The stock exhaust on the 2.5 was derived from the MK5 Rabbits and there are guys doing 14 second quarter mile tickets t the track, using the stock 55mm catback exhaust system and 15 inch steel wheels. That's one of the reasons I kept my stock mid muffler and only installed the GTI axle back muffler.
VW shafted us when they installed long 1st and 2nd gears in the 5 speed, that one of the reasons why the 2.5 doesn't accelerate like the GTI even with the the UM tune.
I received an answer from UM, they say they only offer a stage 1 N/A or SRI version. They advise their price at 350 USD which is around 480 CAD. I paid around 700$. The dealer asked me if I wanted stage 1 or 2. But UM tells me that there is no stage 2 for the N/A. I will call Unix tomorrow and try to get the N/A version flashed.
As for our car needing back pressure, I'm pretty interested on explanations
Edit: Called UM today and they said I got the stage 1 NA tune and the back-fire sound is due to the fact that the rev hang is removed. Even if the tune is right, I would say the dealer is not honest when he told me that he put stage 2. Anyways, everything is fine. At that price, maybe I should have try out the IE tune...
Have a good day everyone
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