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Description
Grams Digital Wideband Air / Fuel Ratio GaugeGrams is proud to offer the most innovative Wideband Air Fuel Ratio Gauge. Air Fuel Ratio data is important for tuning as it helps achieve optimum power and safety. Unlike other gauges on the market Grams Wideband is fully digital and features large LED numbers for an easy read. The Wideband is compatible with all fuel types and uses Bosch Power LSU 4. 9. Grams UEGO wideband air fuel gauge utilizes the Bosch LSU 4. 9 sensor which is superior to the
Grams is proud to offer the most innovative Wideband Air/Fuel Ratio Gauge. Air/Fuel Ratio data is important for tuning as it helps achieve optimum power and safety. Unlike other gauges on the market Grams Wideband is fully digital and features large LED numbers for an easy read. The Wideband is compatible with all fuel types and uses Bosch Power LSU 4.9.Grams UEGO – wideband air fuel gauge utilizes the Bosch LSU 4.9 sensor which is superior to the LSU 4.2 sensors. One major difference between the LSU 4.9 and LSU 4.2 is the LSU 4.9 uses the reference pumping-current, while the LSU 4.2 uses the reference air. This allows the LSU 4.9 to get rid of the reference air, and therefore remove the biggest failure mode; as a result the LSU 4.9 has a long life and maintains accuracy throughout the life of the sensor.
Most aftermarket wideband controllers still use the LSU 4.2, mainly for low cost reasons. Bosch sells the LSU 4.2 to the aftermarket at a much lower price than the LSU 4.9, plus, many of the controllers are not able to adapt to the new LSU 4.9 as the technology is different. In fact, most all OEM who use Bosch sensors are using the LSU 4.9.
The Grams wideband air fuel gauges feature a 0-5v output for closed-loop feedback when pairing with a standalone ECU. Grams Wideband measures at 52mm with an LED display that features a 3 color sweep from Red, Yellow to Green. The Grams Wideband using the Bosch LSU 4.9 is able to have accuracy down to .001 and utilizes a 4 digit display.
Features
- 52mm Gauge Housing
- 0-5v analog output (10-20 AFR)
- Bosch 4.9 LSU sensor with weld-in bung included
- Accuracy down to .001 and 4 digit display
- Display output from 10:1 to 20:1 AFR
- LED Display w/ 3 Color sweep from Red, Yellow, Green
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Good product good price
The best white strips I’ve ever tried quick and easy note we taste afterwards
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Reviewed in the United States on June 3, 2026
★★★★★ 5
Gorgeous wig, big head friendly
Color: 1B Off Black
I loved this wig, I have a huge head and have to return now wigs I buy.
But this was a keeper, it's synthetic so don't go crazy expecting human hair realness.
In the sense that it will tangle in the nape.
I detailed and then cut off the undesirables.
But for the prize, it worked as half wig with a headband.
For the price you can't beat it.
I gelled the front alittle and I looked like Selena. Lol if you know the reference then you know.
But it looked great with a headband.
I wore it on vacation it wasn't too hot, it wasn't exactly cool either.
But it was good.
For the price I'm buying a few more in other colors.
I didn't make it a ponytail yet but that up next.
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Reviewed in the United States on June 12, 2023
★★★★★ 3
Good quality
Color: 1B Off Black
Good quality. Covers whole head
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Reviewed in the United States on July 8, 2025
★★★★★ 4
Decent for the price
Color: 2 Dark Brown, Color: 2 Dark Brown
Bought the color 2 thinking it would be brown but it’s almost Black (my own ignorance). I saw a YT vid by Kie Rashon where she sort of left the front of her hair out so I was hoping to do the same but it’s too dark for my hair (you can’t tell in the pics). I would recommend checking Kie out on YT for more details.
I do like it though so I will probably give this one to my sister and reorder a different color. Wish they provided pics of how the wig in other colors look.
Edit: So I repurchased this piece in DR Hazelnut Brown (the lighter color). I took some leave out in the front so please note that’s my hairline, not the wig’s. It blended well with my hair color. My texture is a little curlier but I just did a braid out on the front to help it blend. Wig tangles very easily. I’m going to experiment with co-washing to see if that reverts it to its origami condition.
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Reviewed in the United States on December 7, 2022
★★★★★ 5
Really Cute!!
Color: DR HAZELNUT BROWN
Really cute! Its synthetic but its lightweight and good quality for synthetic. Wont last more than a few weeks (if taken care of) but its really cute!! Got so many compliments on it
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Reviewed in the United States on May 15, 2025