Looks okay on the black car, but super chintzy on the silver... IMO
Alright...you're entitled to think they look good...and I'm entitled to think they don't. Don't see a need to jump down my throat about the issue.wtf? u can't even tell it's there on a black car what are u saying?
so your saying the new bmw 3 series with upgraded rear diffuser bumper looks worse ? it has a diffuser now, the white and silver ones look very different and look really good!
Definitely helps my whole "red and black" theme that I'm still going for. Would be nice if they pre-cut the holes for me. What do you say, Boogyman?
We can precut the holes for you if you wish, but it may be better if you do it yourself, or have it cut at the place where you get it installed, in order to get a good fit with the exhaust.Definitely helps my whole "red and black" theme that I'm still going for. Would be nice if they pre-cut the holes for me. What do you say, Boogyman?
So weird that the boogyman is so much more nicer than legends say he is. Well, I was gonna do it myself since everywhere kinda charges for a pretty hefty price so thats why it would be great if I can get it while some work done already.We can precut the holes for you if you wish, but it may be better if you do it yourself, or have it cut at the place where you get it installed, in order to get a good fit with the exhaust.
I totally agree with this statement. :w00t:This dude is gonna make me get a second job
This too. Anybody know if this improves performance or is just for looks?What "performance" will this performance difusser add to a Sonata?
This question is for Boogyman:We can precut the holes for you if you wish, but it may be better if you do it yourself, or have it cut at the place where you get it installed, in order to get a good fit with the exhaust.
Okay, maybe I was a bit hasty in the offer. :grin: However, since I did make the offer, we'll precut the holes for anyone who wants it for the month of August only. Just include a comment in the Comments section of the order form when you place an order, or send us an email with the request and your order number. Be sure to specify if you want the right hole cut or both holes cut.This question is for Boogyman:
If we were to order this item from you (SR), you say you could pre-cut the holes for us, How do we let you know that we want this pre-cutting done by you? During the ordering phase or do we need to contact someone directly?
I totally agree with this statement. :w00t:
This too. Anybody know if this improves performance or is just for looks?
EDIT: okay gonna answer my own question.
What is a diffuser:
A diffuser is a shaped part of a car's body, usually found in the underside of the car. It can be located at the rear underside, or closer to the front underside near the wheel wells. A rear diffuser is typically sloped upward from front-to-back, and may have vertical fins attached to the bottom of the sloped surface. The rest of this article will apply, for the most part, to the rear diffuser.
The diffuser has two (2) purposes:
1. To reduce drag.
2. To reduce lift.
What goes on at the rear-end of a car:
The area immediately behind the car tends to have turbulent, slow-moving air. The fast underbody air that exits the car ends up meeting with this slow-moving outside air. The greater the air speed difference is, the more turbulence is created. This turbulence causes unwanted drag and disrupts the airflow that exits from the underbody, which in turn decreases the underbody's ability to reduce lift.
How the diffuser works:
The diffuser itself does not actually create downforce - it works in conjunction with other aerodynamic components to reduce drag and lift. The upward front-to-back angle of the rear diffuser causes the fast-moving underbody air to expand and slow down. This slower air is then better able to meet up with the slow outside air, thus reducing the amount of turbulence behind the car. The vertical fins are there to make sure that the air at the rear left and right sides do not disturb the function of the diffuser.
When is a diffuser effective:
As a general guideline, the rear diffuser needs to be angled upward at least 10 degrees. In order for a rear diffuser to be effective, the air that travels under the car from the front needs to be as fast and smooth as possible. Slow-moving, turbulent air is not going to help a diffuser do its job.
In order to create the smooth air that the diffuser needs, it is recommended that the car have a flat undertray (a.k.a. underbody) that covers most of the uneven surfaces and components on the cars bottomside. However, production road cars typically do not have, or only partially have, an area that is covered by a flat undertray.