2004 Acura NSX
"My day at Summit Point started out VERY wet. In fact, it was practically a monsoon on the way there and for the first 20 minute track session, so speeds were cut in half due to reduced traction. Someone following me in a Porsche did comment on how interesting the water looking coming out from under the diffuser, stating it was split into 6 channels and really looked neat! Maybe that's a good way to visualize the airflow? I did seem to "feel" a slight difference on the longest straight just before turn 1, which is the fastest part of the track. I tend to reach speeds upwards of 130+ and the rear end of the car felt slightly more "planted". Usually, the car starts to feel a bit light or gives me a feeling like the rear end wants to float based on the air pressure, but the diffuser did alleviate that for me." - Steve, Fairfax VA.
2010 Lotus Evora
"So wrecking the car ended up being not too bad of a deal afterall. Glenn from Difflow offered fabricate a new one for me and look what he came up with!! I still have to replace the diffuser finisher, but wow it looks awesome! The build quality is top notch and the whole thing is very light. I don't have a good "before" pic for comparison, but this looks just right for the Evora! Maybe if I would have had this in the car prior to my accident the added downforce would have kept me on the pavement " - Todd, Wexford PA.



Give your NSX a facelift with this beautiful 5 element Railer diffuser. The long fins and body will help channel the air under the car more effeciently. Perfect for the track!
The images displayed below are pictures of our 5 Element Railer diffuser on customer cars.
Steve's 2004 NSX with Rims, Brakes, NSX Type-R Wing, etc.

Click below to watch our installation video.
Select your location to calculate the final total with shipping. Please provide your shipping address and any extra instructions in the notes area on PayPal. Diffusers are shipped within 48 hours of the purchase. Please allow 2-7 days for your diffuser to be shipped (FedEx Ground). If we are out of stock, you will be notified with an estimated completion date for your diffuser. It takes about 2 weeks to have a diffuser made. If you do not wish to wait, we will refund you in full. If you want to contact us before hand to make sure the diffuser you want is in stock, please do so here. By purchasing a diffuser from Difflow, you agree to the Terms of Use. If your shipping address is not in the selected region in the drop down box, then you will be contacted to pay the difference or refunded.

NOTE** The Difflow Railer diffuser for the NSX is considered "Oversize" by FedEx/UPS, that's why shipping is so expensive for this particular model. If you want to save money, check out the original diffuser.
Canadian and Overseas customers, please email us to order.
What year is your NSX?


Please Submit your pictures to us by emailing us. We need at least 5 pictures to display your car.