The Powr-Flo spacers' bore is designed to increase the velocity of the air flow into the intake manifold. By delivering the air with more velocity it allows more air into the combustion chamber for a denser air charge. The design results in improved throttle response and impressive power gains in the mid range and top end.
Very simple installation on my '08 Silverado 4.3 that's been a pig since day 1. It probably took less than 10 minutes to install. I instantly have much better throttle response and power. After 2 weeks my MPG is better (about +2mpg) and may get even better if I can keep my foot out of it.
just put it on my 09 nissan titan went from 18 hwy mpg to 21 was more than i expected
i put a intake on gained 1mpg put a exhust gained another 4 and now the spacer i get 19+ driving city everyday 33 mpg hwy love this jeep my car never got that. and it deffently gained hp and throttle response. great prodoct great site!!!
big improvement in throttle response.
I put this on my 2010 Nissan Titan. Great product! engine idled a little fast & rough for the first day or so, but then smoothed out. Didn't notice any immediate gains, but after about a week or two, I have seen my gas mileage increase by 1.8 MPG. That may not sound like much, but it was getting 12.9 MPG and now it is a consistent 14.7 and I am driving just as I as before. That an extra 45 miles per tankful. Instructions were vague and there are no markings for which way airflow should go, so I just went by which way the sticker was facing. Easy to install. Does whistle slightly, but only noticed it with windows down, sitting still revving the engine and then you still have to try to hear it. Not bad at all.
very easy to install, improved fuel economy, but the whistling sound is annoying at times.
Very easy installation, noticable differnce in throttle response.
Q: What is the bore diameter? I bought a 90mm throttle body and need a spacer to match. Answer this question
A: Their spacers bolt up to the stock bolt location and is bored out to the stock Throttle body dimension.
Answered by Kelly from 4WP Corporate Headquarters on 06/03/2021
Q: Do I need to get gaskets or something to install this? Answer this question
A: A gasket is included, along with long bolts and washers.
Answered by Kelly from 4WP Corporate Headquarters on 04/23/2021
Q: Does this require fuel system modification (bigger injectors, more pressure etc) How much of a power gain can I expect on a 2009 Ford ranger Answer this question
A: No other mods needed. This is a direct replacement of stock throttle body. This one is for GM applications, will not fit your Ranger.
Answered by Kelly from 4WP Corporate Headquarters on 02/23/2021
Q: can i put this with my original stock filter? or do i have to buy a k&n filter to install this part? Answer this question
A: Hello You can use it with the stock air intake. It will work better with an aftermarket air intake.
Answered by Rody on 02/03/2015
Q: Will this fit on my 95 yj with stock 4.0 l Answer this question