Who has a 3 inch downpipe mated to the stock cat-back?

[Angel@forge]

I have a GHL catted dp mated to my a3's stock catback. Sounds good and flows well enough for this power level ( stage 2+ )

 

[gregsju29]

ebay dp, thru surewin racing. $150 bucks, picked up the atp clamp for $14. Have had it for 20k miles. Zero issues and the fitment was about 95%. If you're going catless, I would do it this way all over again

 

[absence]

3" APR DP here, 200 cel cat. Sounds absolutely amazing when you get on it, in town one never knows....

 

[ssunnylee24]

I have a GHL catted dp mated to my a3's stock catback. Sounds good and flows well enough for this power level ( stage 2+ )

I have the same set up and I don't notice any sound difference.

 

[MisterDuck]

Since APR doesn't have a TSI CBFA DP I was thinking of mating the Billy Boat Stealth DP to my stock catback or the APR RSC catback.

Anyone have that setup? What kind of sound do you get out of it? I want something with little to no drone and I figure Billy Boat used to make these for APR so they should be good.

 

[Angel@forge]

From stock? There is a difference, it's not extreme, but then again some aren't looking for that. My a3 has a burble to it and is deeper than stock. I'll soon be trying a complete blueflame turbo back so I'm sure it'll be much louder.... hopefully not too loud.

I have the same set up and I don't notice any sound difference.

 

[GTIMKV20]

mine screams on cold mornings for the first 60 seconds... then it chills out, lol

 

[JDraft]

GHL 3" DP to stock cat-back with the resonator deleted drones a bit from 3000-3500, but anywhere else it sounds fantastic.