stage1 with downpipe

[triplej3]

hey all

i can get a good deal on a 2.5" downpipe 200cell but my question is, can i just bolt it on and drive or do i need to update software to support it?

i did read on here that the car can run rich and course damage whats your thoughts? anyone else running stage 1 map with a downpipe?

[h100vw]

hey all

i can get a good deal on a 2.5" downpipe 200cell but my question is, can i just bolt it on and drive or do i need to update software to support it?

i did read on here that the car can run rich and course damage whats your thoughts? anyone else running stage 1 map with a downpipe?

Will probably overboost and check a CEL for the inefficient cat.

I can fix you up with an appropriate tune email me if you're interested. email address in my sig

Gavin

[sambb]

yep I'd get onto Gav about a matched tune. I ran a 3in downpipe on a stage 1 tune. First up, the engine massively overboosted and I mean off the end of the 30psi boost gauge in the blink of an eye, not even remotely possible to manage by driving around the problem. The only solution for that is to run a boost control solenoid (N75) parallel bypass to bleed off the overboost but it means cutting into your boost control plumbing and finding/fitting the correct pneumatic hardware and setting it up. Secondly it wont be long before you get the cat code Gav mentioned. What worked for me was a right angled standoff for the second 02 sensor. I had a 200 cell and didn't get the code again after that.
I engineered some ways around the fact that the software didn't match the hardware but in all honesty just get the appropriate tune. I have all those bits and pieces on hand so it was easy for me to do and I didn't mind the challenge but if you don't then it'll be a headache.

[triplej3]

Looks like I'm Goin stage2 o:

[Bora Sport]

I would recommend it. Gav did the stage 2 (and 1) tune on my Polo and I still love jumping in and driving it with 170,000 k’s on it. My wife’s friend drove it the other day and she asked me if I wanted to sell it.