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Want to go with a supercharger on my 2001 A4.
Only mod is headers.
What's the weakest link I'm going to need to fix?
I thought the engine was ok to about 550 rwhp.
But I hear the A4 tranny is only good to 400?
A4 Tranny needs to be done. also sugest you replace output shaft on drivers side when you do tranny. A nice 3000 stall converter and set of Super max LT headers will maximize your set up. 3:42 gers also but make sure they are harded like from a Zo6......
You're going to want a built 4L60E and a trans cooler. Perfect time to do a bigger convertor as well. The motor should be fine at 550 rwhp. Mine sure is.