B6/B7-S4/RS4 Exhaust Thread

[Silver B6 S4]

^^^ Nice to see you post on here. We need to meet up, I want to hear your exhaust in person!

[B6JoeS4]

Catback: Custom w/ Magnaflow 12851's
Brand Make: Trexturk
Resonatation: Dual 12" generic resonators
Exhaust Diameter: 2.5"
Mid-Section Type: Magnaflow X-Pipe
Tips: 4"

Downpipes: Custom 2.5" bitches
Brand Make: Trexturk
Pre Cats: none
Main Cats: none
Exhaust Diameter: 2.5"

At Trexturk's shop. That's the mad scientist revving the car

Leaving Trexturk's shop

[UnstableOS]

Nice vids Joe, car sounds mean.. Those launches would destroy my stock clutch..

Did you just drop in a new clutch as an upgrade or a replacement for a fried stock clutch?

[DaveD]

Just realized I never posted in this, my setup was as follows:

Brand Make: AWE Catback with JHM Headers
Resonatation: Non-Resonated
Exhaust Diameter: 2.25"
Mid-Section Type: H-Pipe
Transmission Type: Tip





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[B6JoeS4]

Nice vids Joe, car sounds mean.. Those launches would destroy my stock clutch..

Did you just drop in a new clutch as an upgrade or a replacement for a fried stock clutch?

Thanks man. It was replaced for both reasons lol

[SeKKeY]

Holy flames batman! What tune are you running DaveD?

[sakimano]

make sure you update the database thread

Just realized I never posted in this, my setup was as follows:

Brand Make: AWE Catback with JHM Headers
Resonatation: Non-Resonated
Exhaust Diameter: 2.25"
Mid-Section Type: H-Pipe
Transmission Type: Tip

[Quick_Quattro]

Damn they sound mean. B6JoeS4 what color is your car?

[SeKKeY]

Also, can someone please link my exhaust to the closed thread started by joey? thanks!

[B6JoeS4]

Damn they sound mean. B6JoeS4 what color is your car?

Thanks, It's Dolphin Gray with a nice coating of winter salt

[dmaxben]

Here is my Current Setup:

Catback:
Brand Make: Magnaflow full catback, stainless
Resonatation: Resonated
Exhaust Diameter: 2.5"
Mid-Section Type: X-Pipe
Transmission type: manual

Downpipes:
Brand Make: OEM
Pre Cats: Gutted
Main Cats: in place
Exhaust Diameter: 2.175"

I couldnt be happier with it. Yes, its kind of too quiet but whatever, the exhaust system is still too new and shiny to think about hacking it up to take the resonators out. Other than being slightly too quiet, I love the sound. The big chrome tips look great too.

The fitment was perfect and everything was very well made. Zero complaints. Icing on the cake was that the whole thing was brand new, $660 shipped to my door.

I noticed a big difference when I gutted the cats and put the catback on. I know it sounds stupid but I know im not just falling for the butt-dyno placebo-effect thing. The engine definitely revs up faster, especially in the upper rpm ranges, but I hardly ever shift it/run it above 5k anyways.

Down the road I plan on custom fabricating my own mandrel-bent downpipes.

check engine light is on now, but the JHM tune is on the way to take care of that.

ben

[beemercer]

^nice writeup, the tune really helps tie it together.

[kelseysautobody]

Brand Make: Stasis
Resonatation: Non-Resonated
Exhaust Diameter: 2.5"
Mid-Section Type: X-Pipe
Transmission Type: Manual

[ReeS4e]

Anyone running flashpoint by stratosphere or know anything about it?

[sakimano]

Anyone running flashpoint by stratosphere or know anything about it?

it's 2.25" so that's kind of a non-starter if you're interested in gaining performance. I mean why take off a restrictive OEM catback just to put another one on? Go 2.5", which has been shown time and time again to be optimal for a 7000rpm 4.2 V8.

someone named Mr. Corey has the downpipes + catback. He says it's fantastic...but then I think he got it for free as he was the test car/show car they used, so take his comments with a grain of salt.

[norcal]

Guess I never added my info here.

Brand Make: Custom
Resonation: Resonated (14")
Exhaust Diameter: 2.5"
Mid-Section: X-Type (magnaflow)
Transmission Type: Manual

Mufflers are Borla and gutted precats. The drone is a little much for me. I drove for a few months non-res but couldn't handle it. I'm actually still not pleased with the drone, gonna keep trying to tweak stuff until I'm happy. Ordered a Summit X-pipe (only $39 so worth a shot) and next up I'm going to try some different mufflers.

[Drkside]

Brand Make: Milltek
Resonatation: Non-Resonated
Exhaust Diameter: 2.25"
Mid-Section Type: H-Pipe
Transmission Type: 6-Speed
Downpipes: OEM
pre-cats: gutted
main-cats: gutted

exhaust clip/take off

comparison stock DPs vs piggies

[Fas4TT]

Dmax where did u get your magnaflow from for 640?

[dmaxben]

Dmax where did u get your magnaflow from for 640?

Magnaflow Performance | Discount Performance Auto Parts | Performance Exhaust Systems | Flowmaster Performance Mufflers

you enter some code in the checkout and go through some process and you end up getting it for 640 shipped. To be honest I forget how to do the whole process though. Search the forum for 'performance peddler' and it will probably come up.

Ben

[Fas4TT]

Figured it out thanks. You have any sound clips of your set up?

[bangoman]

I just my piggies + Magnaflow installed: clicky

Same setup as dmaxben a few posts above, so here's the cut and paste:

Catback:
Brand Make: Magnaflow full catback, stainless
Resonatation: Resonated
Exhaust Diameter: 2.5"
Mid-Section Type: X-Pipe
Transmission type: manual

Downpipes: (Robbed Saki's old piggies from his basement )
Brand Make: OEM
Pre Cats: Gutted
Main Cats: in place
Exhaust Diameter: 2.175"

Why Magnaflow? Because it's a full 2.5" exhaust costing about $740 shipped all in including taxes and duty to my door from performancepeddler.com to Canada. The coupon code is "audipipes".

Today was my first full day with the exhaust and I did a 400km road trip with my parents visiting from the UK. First impressions from the parents was "what the hell kind of family wagon is this?!?!?!"

My first impressions:
- Holy shit did this mod free up a load of low end torque. The car is truly effortless off the line compared to before. I am not yet tuned. Before: torque really kicked in at about 3-3.5k rpm. Now: much more linear torque from about 1.5k rpm and up.
- Top end - pretty much same as before
- Sound - very noticeable drone at about 1600 rpm, gone by 2000 rpm, sound like some sort of harmonics going on. Another droney peak at about 2800-3000 rpm but only if you really listen for it. Remember I'm in an Avant so it's 10x worse!
- No doubt at all other RPMs, it sounds the absolute business in and out of the car. Not much louder than stock (from the inside) at the top end, actually a little bit more refined IMHO at the top end.

To be honest, I don't give a shit about how good it sounds, I just can't believe how the engine is set free by this sub $1000 mod and I'm not even tuned yet. In fact I'm a bit scared about getting tuned! The car is eating through the revs more quickly, as shown when I hit the rev limiter on my first on ramp. Cruising the autoroute was no worse than with stock, and I'm turning the AC off and driving with the windows open a lot more.

Here's a quick vid I took (the missus driving home), nothing exciting just 30s of daily driving:

[ame=http://www.youtube.com/watch?v=vCmKpMMF7Nk]YouTube - ‪Magnaflow exhaust B6 S4 Avant‬‏[/ame]

I'll update my post when I've got more exciting vids.

[shellsz]

Catback:
Brand Make: Milltek
Resonatation: Non-Resonated
Exhaust Diameter: 2.25"
Mid-Section Type: Custom X-Pipe

Downpipes:
Brand Make: Milltek
Pre Cats: none
Main Cats: none
Exhaust Diameter: 2.5"
Transmission Type: Tip


Just put the downpipes on this past weekend, sounds frosted flakes GREAATTTT....Jhm tune this week..... Question for you guys, my exhaust shop recomend that I add a Hi-Flow cat to my system because the extra airflow plus less back pressure is gonna damage my internals, bent valves, springs, etc etc Any truth to this?

[shellsz]

anyone?

[drew]

Tell your shop to put down the crack pipe.

[beemercer]

burnt valves only happens if you have carbs and don't jet up a bit, the motor will adjust fuel to make sure everything is in check.

[likewater]

They're just trying to sell you something. Change exhaust shops!!

[shellsz]

lol, ok thanks for the responses

[Jay]

X-posting from another thread but I guess it belongs in here as well

[icanfly]

Here is my current setup

Catback:
Brand Make: Milltek
Resonatation: Non-Resonated
Exhaust Diameter: 2.5"
Mid-Section Type: H-Pipe

Downpipes: Custom / no-cats
Brand Make: Custom
Pre Cats: Gone
Main Cats: N/A
Exhaust Diameter: 2.5"

[bhwrice]

Catback:
Brand Make: Fast Intentions
Resonatation: Resonated
Exhaust Diameter: 2.5"
Mid-Section Type: X-Pipe
Transmission type: Manual

Downpipes:
Brand Make: Custom (Trexturk)
Pre Cats: None
Main Cats: None
Exhaust Diameter: 2.5"

[BUD]

Here is my current setup on my B7 S4:
Catback:
Brand Make: RS4 Magnaflow full catback, stainless
Resonatation: Non-Resonated
Exhaust Diameter: 2.5"
Mid-Section Type: X-Pipe
Transmission type: manual

Downpipes:
Brand Make: Milltek
Pre Cats: NA
Main Cats: NA
Exhaust Diameter: 2.5"

Video:

[Joey]

Car sounds great, Mark! Seems like a nice area that you live in for sure

[BUD]

Car sounds great, Mark! Seems like a nice area that you live in for sure

Thanks, Joey! That's actually where I grew up. It's about 45min north of where I live now in Hollywood. Pretty cool area, very rural and right next to the ocean.

[Mr.Corey]

it's 2.25" so that's kind of a non-starter if you're interested in gaining performance. I mean why take off a restrictive OEM catback just to put another one on? Go 2.5", which has been shown time and time again to be optimal for a 7000rpm 4.2 V8.

someone named Mr. Corey has the downpipes + catback. He says it's fantastic...but then I think he got it for free as he was the test car/show car they used, so take his comments with a grain of salt.

HAHAHA