Jet Performance Products Jet Powr-Flo TBI Spacers

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.

Should be worth $50. I noticed little to no power increase

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.

Bought this spacer and was skeptical to say the least. Price was right [...] so I thought I would give it a shot. First off the instructions on the part are the worst I've ever read. Didn't even tell me which way to face the part for best performance, so I had to guess. Second didn't tell you or show you what all the parts in the package were actually for. After about 2 hours I figured it all out and got it buttoned up. Now the reason I was skeptical. Went and filled up the tank right before I installed the unit. I typically get around 17 miles to the gallon in my 06 Tacoma double cab 4x4 4.0 V6 with 285/60-18's, mild lift, Airaid intake, Dynomax cat back exhaust and all Royal Purple fluids. Just ran that tank of gas out and got 14.6 miles to the gallon. Ahhhhh WHAT!? So I hope the next tank is better. If not it's coming out and quick. Thought that was the whole purpose to this part, BETTER GAS MILAGE. And as far as a gain in power, doesn't feel like it but who knows, maybe.

Great product for the price added low end hp and the whistle