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Tim, did you gut both cats on each pipe, or the pre cat only?

Mike, do you think gutting the main cat(larger one) had a large difference? Or the main difference is the pre cat?


Ben, I still...

It's pretty easy to argue that the increase in tq from the tune, caused the transmission to fail, whereas audi purposely limited torque on their factory tune so those things wouldn't happen.

The original trans was inherently flawed, mostly due to seal issues. The new seals I think any rebuilder are using are made from viton. Much longer life. It should be able to 100k with a tune on the...