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View Full Version : Question about exhaust and coil overs..



zero12497
03-24-2012, 07:42 PM
Has anyone tried going from dual exhaust to single? Thought it might be cool.. If it was possible. And as far as coil overs.. What are pros and cons? Should I lower with springs instead? Helps apreciated thanks.

CorneliusRox
03-24-2012, 08:19 PM
1) just replace with a valance that works if you can find one. I think tdi's use them?
2) just get coils, unless you are super anal about the ride height or you want adjustments for tracking your car.

Ed Gein
03-24-2012, 09:40 PM
doctor has single exhaust but he also has a 1.8t and they might already come like that. ill try to find a pic

Ed Gein
03-24-2012, 09:42 PM
2) just get springs, unless you are super anal about the ride height or you want adjustments for tracking your car.

um, fixed? lol

DRAKLORE
03-24-2012, 11:38 PM
Quadrooples exhaust, fuck single it will only cut your HP in half!
You do one single pipe per cylinder, and run a KO4 off each one, then Eric Paul young from desperate housewives will jerk you off...
True story

mr shickadance
03-25-2012, 07:23 AM
4ko4's.......it has a ring to it

khaos443
03-25-2012, 09:25 AM
I feel like a single would look umm ricer-ish? since it'd probably be so big...

CorneliusRox
03-25-2012, 10:02 AM
4ko4's.......it has a ring to it
4 times the bent rods? [;)]


I feel like a single would look umm ricer-ish? since it'd probably be so big...
Really a 3" ID pipe going straight out the rear is the equiv or a split to two 2.25" ID pipes coming out. And 3" is really not that big. Most aftermarket tips are 3"

mr shickadance
03-25-2012, 10:49 AM
I feel like a single would look umm ricer-ish? since it'd probably be so big...


i lol'd bc i thought you were talking in reference to ko4's not exhaust

wildbill
03-25-2012, 11:53 AM
99% of enthusiasts have no need for coil overs. for the price of a GOOD set, your talking 1200 plus. shocks and springs are plenty for the road and minor track time. bilstein sports and h&r springs go so nice together

CorneliusRox
03-25-2012, 12:06 PM
i lol'd bc i thought you were talking in reference to ko4's not exhaust

lol I did after I read what you thought he meant.

Mc Suly
03-25-2012, 12:16 PM
Really a 3" ID pipe going straight out the rear is the equiv or a split to two 2.25" ID pipes coming out. And 3" is really not that big. Most aftermarket tips are 3"

Then what if you had a 3" (|) single tip exhaust vs a 3" (Y) dual tip exhaust

would be that much of a difference?

CorneliusRox
03-25-2012, 12:25 PM
you wouldnt gain anything. the extra turbulence going from 3" to a ypipe would actually lower your flow (just barely). I mean it would be so minimal that you wouldnt be able to really measure it in any performance way.

Pi*r^2

3" = Pi*1.5^2 = 7.06858347
2 2.25" = 2*Pi*1.125^2 = 7.9521564
2 3" = 2*Pi*1.5^2 = 14.1371669

even though it is more, you would still be bottle necked at 3"

Sprode
03-26-2012, 11:14 AM
you wouldnt gain anything. the extra turbulence going from 3" to a ypipe would actually lower your flow (just barely). I mean it would be so minimal that you wouldnt be able to really measure it in any performance way.

Pi*r^2

3" = Pi*1.5^2 = 7.06858347
2 2.25" = 2*Pi*1.125^2 = 7.9521564
2 3" = 2*Pi*1.5^2 = 14.1371669

even though it is more, you would still be bottle necked at 3"

Most pipes that split come in half an inch bigger/have reducers. You just wouldnt see it. One of the reasons opening up the downpipe is such a big deal

Sent from my DROID4 using Tapatalk

dbens
03-26-2012, 11:39 AM
regardless of the tiny difference in gains i would much rather have a split dual exhaust like the b7 anyday over the 1 sided dual on the b8, it just makes the back of the car look sexy and aggressive

CorneliusRox
03-26-2012, 12:05 PM
regardless of the tiny difference in gains i would much rather have a split dual exhaust like the b7 anyday over the 1 sided dual on the b8, it just makes the back of the car look sexy and aggressive

I agree.

groundround
03-26-2012, 12:16 PM
i think it would change the tone a little more in hopes of how the B5 sounds, love how they sound with an exhaust. But total different engine and everything but one cam dream.

khaos443
03-26-2012, 01:29 PM
regardless of the tiny difference in gains i would much rather have a split dual exhaust like the b7 anyday over the 1 sided dual on the b8, it just makes the back of the car look sexy and aggressive

x3