do you guys feel a difference ? is it less restrictive ?

 

Still on break in miles. Car is red lined at 8250, have spun to 7K. We plan on checking Hammr's car on the dyno as the base line (stock) and mine on the same dyno on the same day to see if there is any gain/loss. We will report the results.

 

this will be greatly appreciated I have 2004 S4 and plan doing that mod next summer !!!

 

Zuluracerx - Did you guys ever have a dyno performed to determine any gain?

 

Nice work - I did the same on my B6 S4 Avant over the past weekend.

https://www.6speedonline.com/forums/...t=66721&page=2

I'm sure yours sounds amazing, especially after getting rid of those restrictive factory cats. I just did the cat back non-resonated system and I'm very happy with the sound and extra grunt . And yes, the fitment of the Milltek system was a 10 out of 10.

 

Crod - I'm glad you went with the non-res one... I told you it's sick...

I think I am going w/Milltek on my A3 build. Their stuff is so good.

 

For sure man - it's only a bit louder than stock IMO...the resonated version must be a total waste of time and $$$. Yup, they really make quality stuff - who'd uv thought those limey bastards could actaully make something that works

 

Ha ha about the limeys...

The resonated one is like stock, but flows better. That's the great thing about the S4 - it's so understated you could run exhaust cut-outs...

 

I have the resonated version. It is considerably deeper and more aggressive than stock. My RS 4 is a daily driver and I wanted to keep it understated. It's perfect for my needs. I have not compared it to a non-res version, but I do not anticipate that there's that much difference. The non-res probably just screams a bit more when really getting into it.

 

Crod and I were referring to the S4 version, but that's good to know about the RS4. PICS!!

 

Tried to post pictures, but I get a DB error.

 

Wow, that sounds fantastic.