I already have a Borla exhaust system. Im planning to add a downpipe + mlltek hi-flow cat (200-cell platinum-coated stainless steel cat). Have you guys done this setup before and do you have any ideas on how many horses and torque is it gonna add to my car?

 

I asked pretty much the same question! how much are you getting your for? Milltek

 

a high flow cat is going to yeild you the same hp as a test pipe, almost. just subtract 1-2 hp from a test pipe dyno and thats what to expect from a high flow cat. thats the purpose of a high flow cat is that it has no restriction and it acts as a working cat.

 

the labree hi flo cat is the cheapest 1 i found at 260 from tantrumwerks

 

yes that is the one i have been looking at

 

The Milltek cat that i want is about 600 or 650 i dont rember. How much do u think the installation is gonna be?

 

u could do it your self or install for cat only prob 100

 

Figured I would ask this question here...instead of starting a new thread...

Where can I find an exhaust with a downpipe for the B6 A4 Quat Tip? Everything seems to not include the downpipe on the Tip model? Why is that? Thanks for the help...