Milltek catback with APR dp's

**V8S4Fun** · 08-15-2008 03:39 PM

I was wondering if there is any issue matching these 2 up on a B6 S4. APR says that the dp's only fit their catback but I know that some people out there have this setup. Can anyone help?

**ngng** · 08-15-2008 05:00 PM

Originally Posted by V8S4Fun

I was wondering if there is any issue matching these 2 up on a B6 S4. APR says that the dp's only fit their catback but I know that some people out there have this setup. Can anyone help?

you are going to have to expand the milltek piping

**V8S4Fun** · 08-15-2008 05:10 PM

aren't they both 2.25" systems...is it tough to do?

**ngng** · 08-15-2008 05:13 PM

Originally Posted by V8S4Fun

aren't they both 2.25" systems...is it tough to do?

they don't line up perfectly. if you have the tools, it's hard. if you take it to a shop, make sure they don't overexpand the milltek piping or it'll leak like a beetch

**V8S4Fun** · 08-15-2008 05:46 PM

Thanks for info, I'll talk to the shop about it

**Shonobi** · 08-15-2008 10:15 PM

All that is needed is a reducer that it will work.

**ngng** · 08-15-2008 10:29 PM

Originally Posted by Shonobi

All that is needed is a reducer that it will work.

uhh..reduce what? they're practically the same size...

**bhvrdr** · 08-16-2008 01:56 AM

all you need is an adapter. It barely reduces. It slips in place on the one sides flange and over the other side. Any reputable custom exhaust shop should have them for less then $20 bucks. They just had them sitting around at the shop I had work done at. I'm not a fan of expanding pipes but it's always another option. cheers! Mike

**37doc** · 08-16-2008 06:00 AM

I have Neuspeed and AWE dp's and they mate up perfectly, might want to look into them (AWE DP's) , that way you dont have to modify anything to make it work ,like it should. Sounds pretty ridiculous to me to have to modify a new part made for the vehicle to get it to work?........

**tadhgbrosnan** · 08-16-2008 09:21 AM

Originally Posted by 37doc

I have Neuspeed and AWE dp's and they mate up perfectly, might want to look into them (AWE DP's) , that way you dont have to modify anything to make it work ,like it should. Sounds pretty ridiculous to me to have to modify a new part made for the vehicle to get it to work?........

EXACTLY. Especially when you're talking a couple grand worth of parts.

**V8S4Fun** · 08-16-2008 11:03 AM

I have a tip, AWE doesn't make dp's for a tip

**bhvrdr** · 08-16-2008 12:05 PM

Originally Posted by 37doc

I have Neuspeed and AWE dp's and they mate up perfectly, might want to look into them (AWE DP's) , that way you dont have to modify anything to make it work ,like it should. Sounds pretty ridiculous to me to have to modify a new part made for the vehicle to get it to work?........

Milltek uses metric piping diameters is all. The Milltek DP mate up the Milltek DP. When you mix a Milltek in there with other downpipes you have to adapt but the pipe ends up matching up very well. Heck, anyone using a catback with no downpipes is technically adapting one size downpipes (OEM) to the aftermarket catback it's just done for you. When APR has their 15% off sale you end up with $850 bucks for a great set of downpipes that sound awesome with the Milltek IMO. I sold another catback I had I liked the sound so much

http://www.youtube.com/watch?v=OqF1GyMvP2k

**ngng** · 08-16-2008 03:30 PM

Originally Posted by bhvrdr

Milltek uses metric piping diameters is all. The Milltek DP mate up the Milltek DP. When you mix a Milltek in there with other downpipes you have to adapt but the pipe ends up matching up very well. Heck, anyone using a catback with no downpipes is technically adapting one size downpipes (OEM) to the aftermarket catback it's just done for you. When APR has their 15% off sale you end up with $850 bucks for a great set of downpipes that sound awesome with the Milltek IMO. I sold another catback I had I liked the sound so much

http://www.youtube.com/watch?v=OqF1GyMvP2k

yup, +1