You can get these plugs @ Pulstarplug.com They have a great vid + technical data you can check out too.

I have installed these plugs in a Jeep Cherokee, Honda Civic, 1999 Eclipse, and my 97 Eclipse, all with good results. I got definite torque increase, better mpg, and my emissions dropped on all 4 vehicles. They're $25 bucks ea. but easily pay for themselves. Anyone else using them?

holy shit that is expensive. I think i'll just stick with basic plugs like NGK's or Bosch. The Iridiums are expensive enough as it is

lmao, definitely the butt dyno. I used to cruise 5th gear about 40 mph with no lugging/shaking, etc. (slow acceleration from there though) Now I can hold 30mph in 5th with the same results. I thought that implied a torque increase too but perhaps I'm confused. I just know they work that way and do boost milage a bit too. I'm getting 51.5 mpg srtictly freeway @ 70 mph now, no passengers, no load, flat road. I can't attribute exactly how much the plugs added to that as I put a 3'' intake and 2.5 cat exhaust all about the same time.

I'm getting 51.5 mpg srtictly freeway @ 70 mph now, no passengers, no load, flat road. I can't attribute exactly how much the plugs added to that as I put a 3'' intake and 2.5 cat exhaust all about the same time.





DUde what car is that 51.5mpg at 70 mph it must be an electric car ,shit those plugs rock then

Must be one of those "factory freaks" if it's getting near 52MPG. That's just unheard of.

1998 Eclipse RS-T - Totaled 4/23/09 -
1998 Eclipse GST - Stroked 2.3l, HX40 fed: Build in progress
2010 Subaru Outback Limited

I hate hipsters.

I could maybe believe 52 MPG at a steady 45MPH and with a healthy tail wind pushing you. No way to get even close to that at 70 MPH cruising speed.

I thought this might cause a little controversey and that wasn't my intention. I just sold a toyota tercel that got 55 freeway. I actually had to "prove" it to a couple friends. I'm thinking of asking a hometown member of 2GNT if he would mind verifying it just so some of you won't think I'm BSing. (not my style) I've not met him yet but he sent a "welcome" in the Intro section and goes by "ez" on here. Maybe this is a factory freak, lol. I forgot to mention that I put a Boss Performance chip in it too. Supposedly it adds HP n MPG but I can't say much else about it. Nothing to compare it too as it's my first ever. TTYL all.

Hi DR. I couldn't ask him to vouche for anything either. Like I said, I can't attribute any particular numbers to the plugs myself as I did a few things at the same time. I did use them singularly in a Toy and a Jeep and saw noticable improvements. Nothing to get on the Oprah show though. I will contact Erik and see if he wants to burn a few hours on the freeway just to verify the milage I claim. I'm very new hare and don't wish to be seen as a fool, lol. Or a liar. I'm just an old (54) man that grew up breaking muscle cars, went through a sports car and off road phase, did the family thing, and ended up with an old Eclipse that I love the shit out of. The wife is dead, the kids gone, and there seems to be a bunch of aftermarket stuff out there to mess around with!

DirtMegirt
Wiki Contributor

Thank you Dirt. If I could garuntee it I'd take you up on it. I'll email you with what I started with and what I did later. You gonna make the Shootout? I'm sure planning on it.

In the summer with my CAI on, with normal driving (shifting before 3k) Ive gotten 400 miles +/- 20 miles to a tank, about 14 gallons. Thats roughly 30 MPG. Im not spending $100 to get a few more out of the tank. Altough if someone gave them to me, Id be more than willing to use them.

95 Eclipse GS: 10.5:1, Crower 2's and MSII
186 WHP - 150 WTQ
14.697 @ 93.85 MPH......Gone, but not forgotten
99 420A Avenger: Given to my sister
99 GS OZ: Sold
03 Evo 8: Family Car with balls

I get 31mpg regularly, I track it every time I fill up. Im always with .5mpg of 31. Highway driving I have seen 35-38mpg, depends on the speed im going.

I have a GST muffler, Greddy Header, AEM CAI, UR UDP, and a Modern TB.

cool man

Yes, I think the confusion is the fact that he stated he gets over 50 MPG "strictly freeway" which we think is normal freeway driving where you still have starting and stopping involved after emptying a tank after many miles.

I think he is saying "strictly freeway" is when you are already up to speed and then take an instantaneous reading or maybe read a one mile average with no vehicle speed deviations (like I can reasonably measure with my ScanGaugeII). I can easily get into the low-to-mid 40 MPG range with that scenario. That is about as logical as watching the trip computer show 99.99 MPG as you coast down a hill since eventually you run out of hill or you have to drive back up to the top.

Like DR1665 says, run a whole tank out with mostly freeway driving at varying speeds and then let's see the results. I have reason to belive it will be better but still not that good. No one drives on flat roads with no passengers at the same speed for very long.

I saw the local Autozone had a money back guarantee on these plugs. I'll have to read the fine print first and then maybe I'll try them. As long as I can get a full refund if they don't perform as promised I'm okay to test a set.

Hi Dave. What I meant by strictly freeway was I filled up at a station 1.5 miles from the on ramp, drove 80 miles to an off ramp, went 18 miles on streets returning to the freeway I last was on, went another 80 miles home to the same 1.5 mile from the freeway station and checked the milage. I understand all skepticism here and repeat I don't attribute all my gains to the plugs alone. I am soon going to make 2 full tank runs because I'm aware of the necessity to compile more complete info. Are you near Phoenix by chance? My "strictly freeway" will be from Long Beach to there. Maybe we can hook up for lunch? That will be my turn around point regardless of tank usage. My 2nd tank usage will be one of my personal driving habits which is about 65% streets/35% freeway. Happy Holidays! TTYL.

Thank you Dr. for the kind words. You've given me a whole new thing to think about with the spark delay affecting timing. Never crossed my mind. I'll call the tech @ pulstar and see if they estimated that. I'll definitely get a few more numbers based on tank use and driving conditions and post them here. Thanks again for the welcome. I'm already enjoying a lot of the guys here. This site by far is a few notches above the other 2 I checked out and I hope to one day be able to contribute to others as you all have to me. Happy holidays all!
Paul