Flapper Mod, Does it reduce Back pressure?

[thezoneR32]

I am thinking of getting the flapper mod and I have looked all through this forum but can not find anything on whether or not it reduces back pressure in any significant way. I'm just concerned that this may have a negative effect on torque.

Also there seems to be a lot of differing opinions on how to do it and they all seem a litle difficult to understand. Anyone in Adelaide had it done?

[Big Yellow]

the flapper mod does not affect the exhaust in anyway apart from the noise.

it is a stock feature, but my modding it, you have it enabled all the time.

simplest way is to just pull out the black hose from the vacuum tub.

[thezoneR32]

the flapper mod does not affect the exhaust in anyway apart from the noise.

it is a stock feature, but my modding it, you have it enabled all the time.

simplest way is to just pull out the black hose from the vacuum tub.

Is that the cleanest way? Sorry, it just seems like there are some very complex ways to do it but your saying to just pull it out and leave it? I'm happy to do it if thats gonna be safe. Its not gonna hurt falpping around underneath?

Cheers

[Maverick]

Is that the cleanest way? Sorry, it just seems like there are some very complex ways to do it but your saying to just pull it out and leave it? I'm happy to do it if thats gonna be safe. Its not gonna hurt falpping around underneath?

Cheers

Google the mod, there are a few ways of doing it and find one that you're comfortable with. None of them leave anything flapping about underneath.

[Big Yellow]

Is that the cleanest way? Sorry, it just seems like there are some very complex ways to do it but your saying to just pull it out and leave it? I'm happy to do it if thats gonna be safe. Its not gonna hurt falpping around underneath?

Cheers

ive had it pulled out for nearly a year (did it like couple weeks after i bought the car).

no issues and no flapping about.

its a very short piece of rubber hose. its like 5mm in diameter. wont do any harm.

[Blue.:R32]

It's safe, just do it. Find a screw big enough to plug the hose if you want.

And use a plier if you can pull the hose out by hand..

[bazzle]

It would by a miniscule amount up to when it opens but as its at the end of the exh the gasses would of cooled and reduced in volume so it only affects the noise bypass.

I cut the hose under left rear valance and plugged it with a blocked fish tank air hose joiner.

Bazzle

[G-rig]

I haven't heard anything about affecting torque, but it seems to drone slightly in 6th gear on the highway if you're in too low a gear (although it's not really a drone just gets a bit deep). give it a go and see what you think it's 100% reversible if you dont cut the hose, but you have to seal off the hose (i just doubled it over and used a zip tie).

[thezoneR32]

Well I got under the car, cut the hose and plugged it with a golf tee. (fits perfectly). It's really only a subtle difference. (My last car had full custom exhaust so still quiet in comparison.) I do like it better tho. Particularly when you are in manual mode, I can rely more on the engine sound to change up and down. This will have to do as far as exhaust goes. I really cant see myself going down that track again (custom exhaust). I don't think it would suit the dsg. loud exhausts sound better with a manual imo.

Get my haldex gen 2 installed tomorrow. Cant wait!

[Lukey13]

Well I got under the car, cut the hose and plugged it with a golf tee. (fits perfectly). It's really only a subtle difference. (My last car had full custom exhaust so still quiet in comparison.) I do like it better tho. Particularly when you are in manual mode, I can rely more on the engine sound to change up and down. This will have to do as far as exhaust goes. I really cant see myself going down that track again (custom exhaust). I don't think it would suit the dsg. loud exhausts sound better with a manual imo.

Get my haldex gen 2 installed tomorrow. Cant wait!

Only a subtle difference you reckon? Does the noise get progressively louder, or is it just louder at lower revs now?

I quite like the way the R32 sounds standard. Actually, I should rephrase that - I f&^%ing love the way the R32 sounds standard!

[G-rig]

The stock exhaust is good anyway, could just be a bit louder. i had the rear windows down and could hear the buzzing a bit more.

Although i had the milltek resonated and would recommend that, quite a good balance and a bit deeper/louder.

Just get someone else to drive you're car and you'll hear how good it is. Just sounds different from inside.

[thezoneR32]

I gave it a bit of stick on the way home in manual over varying revs and it definitely sounds better. I really don’t notice the difference under 1500- 2000 rpm but over that point it starts to bark, a bit earlier now instead of about 3000-3500. I'm not sure but it almost sounds a bit louder all through the rev range now. Just a bit? I'm lovin it. Not as boy racer as the custom set up on the lib, more classy and highly tuned like a real thoroughbred.

Lukey13, if you like it now you'll love it more with the flapper mod. Like someone said to me earlier...Just do it!

G-rig, how does the custom exhaust go with the dsg?

[G-rig]

[QUOTE=thezoneR32;421464
G-rig, how does the custom exhaust go with the dsg?[/QUOTE]

My R32 is 6mt so wouldn't know but agree exhausts don't sound that exciting on automatics/DSG cars, and the stock one is good so probably wont bother getting another one.

[Big Yellow]

my custom exhaust with dsg sounds great. does a little flutter on gear changes. sounds awesome!

[G-rig]

Sounds good Big Yellow, how is it now, pretty loud still? Are you going to get some dynamat?