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Your cart is empty.Product Description
Fits 4.0 L / 2.5 L Engines
- Spiraling Helix Design
- Red Anodized Aluminum
- Bolt-On Installation
- No Tuning or Programming Needed
Throttle Body Spacer
Improved Performance
- Improved Torque Performance.
- Increased Fuel Economy.
- Promotes powerful and Efficient Fuel Combustion Process
Includes:
- Throttle Body Spacer
- Gasket
- Linkage Spacers
- Hardware
Dr. G
September 7, 2025
I got this on whim to evaluate the ability to get some torque back as several have posted.This is used in conjunction with a cold air intake.I definitely noticed more torque, especially at low RMP under 1500. If fact its pretty noticeable: whereas before I'd have to get the revs up to about 1500 before pulling out from a light on a slight uphill, now I just get the revs over idle and the Jeep moves of great. On the highway I'd say that there is a little more power - its hard to say how much but its noticeable. On an old 2.5L, any gain is appreciated!I think I am seeing a small gain in mileage but not huge since I am running 411 stock gearing with 32's and a 3" lift.The intake now makes a nice induction noise which is kind of cool. I'm not sure how this would impact engine life and durability, but my guess is that it will only help. The spacer improves the mixture at the intake, which one would think leads to more even combustion from cylinder to cylinder. I would also guess that emissions performance is improved as well since the spacer will increase combustion efficiency.The install is extremely easy. Remove 4-bolts, clean off old gasket, place on spacer and gaskets, install 4 new bolts. The cable spacers were not needed on my install. Its also very easy to uninstall as well in case you only want to use this when wheeling.Overall, I am very happy with the performance, price and ease of install. I didn't have to make any mods my my rig to install it and thats always a plus.
KC S.
September 6, 2025
So, I can't accurately review any MPG, power, or smoothness gains, as I installed this at the same time I did a long overdue set of plugs, wires, and a distributor cap and rotor. I also cleaned the throttle body and IACV while installing. But, installation was extremely easy, and after this ROUND OF MAINTENANCE, idle smoothed out a bit, throttle response is smoother and a bit better, and I gained a substantial amount of MPG. On a 3 inch lift with 31s, stock gears, and AN EXTREMELY WORN SET OF SPARK PLUGS AND A CARBON FILLED THROTTLE BODY, I went from averaging 13mpg to averaging 19 on my commute, which is mostly highway.Again, I cannot stress enough that I do not know what can be attributed to this product and what can be attributed to the overdue maintenance. But it looks good, and makes it sound cool when you push the pedal all the way. And at the very least, it gave me a reason to clean my TB.
Ian Hutchinson
August 26, 2025
So this product does not give you more power. That's not the way your intake works. More air is simply accounted for by the PCM and it regulates the power output accordingly.So why did I install it on my 4.0L? Because the new throttle body butterfly valve that I installed just barely contacted the intake manifold so I needed to raise it up just a bit. For that purpose it works perfect. Just don't be fooled into buying it to make the lunchbox shaped Wrangler go faster. That's not what it was made to do.
Dylan
August 25, 2025
Easy to bolt on, definitely feel some throttle response difference, but I haven't had it on long enough to see the mpg difference. I have an 01 xj with the 4.0 stock height and flow master super 40 with 2.5 inch cat back exhaust.. stock intake. But I feel if you have an aftermarket intake, you would probably feel the extra difference this thing does. If not, it's still a cheap, durable part that at least looks fancy for your mall crawler.
Benny Baca
August 17, 2025
I thought about buying this for some time, doubting if it would work. So I said what the heck my MPG's are terrible anyway, why not try something, so I did.Received it in a couple days A+Told my wife I would be outside for a while as I install this spacer. 15 minutes later I went back into the house and I gave my wife a weird look and she gave me the same look as I told her I was done, haha. Super fast install. A+I took it for a drive and immediately noticed the torque, HUGE improvement. A+About a week later when I filled up the tank, I started to notice the needle wasn't moving as fast as it used to.To make a long story shortBefore spacer= 200-205 miles to the tankAfter the spacer= 230 miles and still have a little more than a quarter tank left.plus improved torque and throttle response.I know what you are thinking but just get it and take a trip to Wow town with me.Installed in a 1998 Jeep Cherokee sport. 4.0L 6cyl 4X4.
Tammy Seay
July 24, 2025
Well packaged. Nice quality. I installed a similar item about 20 years ago on a HEMI. Very pleased. Mild gains, but Gain is Gain. Went with Rough Country because I’ve been well pleased with the lift on my Jeep. Will definitely look for additional items for my Jeep and other vehicles.
Dustin Williams
July 12, 2025
Ive seen a lot of reviews that said it doesn't work, doesn't add power or mpg. so I wanted to try it out and my jeep usually get like 14mpg and with the spacer on I was getting 12 mpg. I didn't like it, it made my transmission shift funny and late. when I took the spacer off my jeep was happier without it. very easy to install and uninstall tho.
JFG
June 30, 2025
I placed this on my newly acquired 2001 Jeep Wrangler SE.Personally, I have experienced better idle, more power, and a throaty exhaust sound increase. I have stock exhaust that is original for the Jeep, so that surprised me. I also have a cold air intake, so that helps as well. The Jeep 4 cyl is anemic and weak at best..so this is not gonna make it a speed racer. The Jeep was made to climb mountains not run races. I haven’t put the Jeep on the dyno to confirm or deny, I just know my current results. I know nothing about fuel mileage difference as I have other issues to fix on my Jeeps suspension and breaking to drive it far now. There is plenty of controversy over these items, I can just speak on what I’ve experienced. It is cheap enough too that if it is just snake oil, no big loss as it is about the price of an oil change!
Stephen Petley-Shaw
March 29, 2025
easy to install, and works perfectly
Ricardo J.
March 27, 2025
La instalación es muy sencilla, si se hace con calma puedes tardar unos 35 minutos haciendo incluso la limpieza del área. Por el momento el consumo de gasolina en un motor de 4 cilindros 2.5 L es de alrededor de los 7.5 km por litro. No tengo idea certera del consumo anterior.
Stephen Lloyd
March 18, 2025
I been on the Fence about throttle body spacers in general Some people say they work some don’t. I have to say I’ve put 2 tanks of fuel thru my xj since it’s been on and I feel that throttle response and bottom end pull has improved. Fuel mileage hasn’t changed that I’ve noticed
nick gallant
February 27, 2025
Nice and easy install, looks good too.
Christian Cagnant
February 16, 2025
Es un buen debate entre sà funciona o no, en mi experiencia sentà un aumento de potencia en mi YJ y siento que recorro más km por L, muy contento con la compra
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