3" DP to 2.5" Flex Pipe | Yay/Nay?

CairoCupra

Active Member
Jun 28, 2020
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So as the title says,

I'm prepping my car for a Stage 2 REVO tune, however parts here in Egypt are scarce and are very expensive.
I went to a shop for a custom catless DP (no enforced noise/emission rules ftw!) which honestly turned out super clean, photo below.

The issue/my question is: the DP starts off at 3" all the way through to the Flex Pipe, from the Flex Pipe onwards is 2.5", the DP will go on to couple with the stock exhaust system, with the resonator and all (for the time being hehe)

I have not installed it yet as I'm a bit skeptical and a little afraid, would it be bad or cause any issues? If it's just a little loss of BHP for the Stage 2 tune that is something that I can live with.

Would it being in that form warrant for any issues? the car is running the stock turbo and I have no plans to take it past stage 2 anyway.

Any input would be highly appreciated!

dp.jpg
 
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