Archives: Testimonials

I picked up a set of Pulstar plugs for both my Camaro SS and Audi TT. Both of which are used for autocross and track days. The difference you feel after upgrading to a set is immediately noticeable. I highly recommend giving them a shot in your application if you’re looking to squeeze a few more horses out of your engine.

Super easy to install. ECM takes about 20 miles to “learn” even when battery disengaged during install. This morning drove around town. Performance so far about 40 miles is off the charts better than anything since car was new! 144,000 miles. Superb! All the superlatives one reads about are there. Very, very impressed! I had just replaced AC Delco plugs with Denso TT’s a month ago which was a large improvement over ACD plugs. Still, the idle ain’t right. That’s why I decided to try the Pulstar’s.
Boy am I glad I did!

I have been using Be1H10’s in my 2003 6G74 Diamante V6 for the last 6
months and can say they are the BEST plugs I have EVER TRIED..!! There is a
REALLY NOTICEABLE increase in both POWER and in economy at cruise throttle
openings, and a very strong steady idle…

Now I am waiting for a set of IBe1H10’s to arrive…can’t wait to fit
them!!

I just wanted to follow up and thank you for sending through the spark plugs for my 2013 Camaro SS 1LE. I attended the SCCA National Champ Tour New Jersey this weekend and took home a first place finish. …I just wanted to share with you as a thank you. I really love the product and am proud to promote my success with them.

I had a choice between good performance on short drives, or good performance on longer drives, and
always bad performance in cold weather. After I installed a set of Pulstar
plugs, I put the stock idle feed restrictors back in and leaned out the
idle. Now, throttle response from a cold start is flawless and throttle
response remains so even when the engine is fully warmed up. As soon as the
snow melted, I went for a 90-minute drive in 30-degree weather covering all
conditions from country roads to freeways to city streets without a single
stumble. I went for another long drive on a recent 65-degree day with
perfect performance again. On both drives I found I was more likely to hit
the rev limiter in first and second gears so power may be up as well. To
summarize, I thought the only way to solve the drivability problems was to
replace the carburetor with a fuel injection system, but just installing
the Pulstar plugs was enough. I am extremely pleased with how these plugs
work.

I tried a car while using Pulstar… the performance is totally different from others, high power! Smooth! Rapid react! Even the engine sound also great a lot- Marvelous! I love it!!

The car feels snappier, more responsive to the throttle than before…it feels noticeably stronger and I’d be willing to bet it is stronger and probably in the vicinity of the 5-7 hp gain Pulstar documents were achieved in the Tahoe as well as a 2012 Charger.

The change to Pulstar® plugs gapped to factory 0.035″ was the only change made for this test. We waited for the first tank of fuel to burn through before making comparisons. At that point there were several distinct improvements: Better tip-in throttle response at any road speed and under heavy acceleration. Less throttle needed to sustain normal “cruise” road speeds. Less downshifting on grades with cruise control applied. Acceleration improved with both forced and cruise control downshifts. Distinct improvement in fuel efficiency; approximately one mile per gallon improvement (5.5%) under “city” and “highway” or interstate test conditions; this engine has always started well.  Click here to watch the video.

These plugs are miraculous in small engines on lawnmowers, etc. The difference between a regular plug and a Pulstar plug in a small engine is like night and day. Turned my kid’s go-kart into a genuine death trap. Pressure washer turned into a beast. Lawnmower ignites before I’m halfway through the first pull.
The results are incredible.

I came across Pulstar spark plugs in some 4×4 enthusiast forums, and after looking through their website I was so impressed with all the background information provided (both the level of scientific analysis, and the sheer volume of empirical data) that I decided the generally high-price was justified, and I would try the plugs in my own vehicles (a 1989 Landcruiser and a 1997 4Runner). IMMEDIATELY I noticed an improvement in throttle response; it was particularly obvious in my 4Runner which suffered from an ‘engine stutter’ issue that I had been trying to properly diagnose and fix for about a year. Right away, the stutter issue went from being noticeable in approx 15-30% of certain throttle situations to scantily noticeable at all, and when it is noticed it’s only in approx 0-5% of the same throttle situations. I also noticed a significant improvement in fuel economy. I am almost religious when it comes to calculating my overall fuel economy for the last tank of gas after every fillup (I even know exactly how much my different-than-factory-sized tires impact odometer readings on both of my trucks, based on distance comparisons between odometer vs. GPS data) and prior to changing the spark plugs I would average between 16-18 MPG (often in the high 16s – mid 17s, and only reaching 18+ on tanks that were nearly 100% highway miles at cruising speed) in the 4Runner. Now, since installing Pulstar spark plugs, I’ve filled-up 4x tanks of gas in the 4Runner (none yet in Landcruiser) – and on the first three (which were no different from my normal weekly commute to/from) I averaged 18+ MPG (up to 18.5) and on the last tank, which admittedly was quite favorable in that it was 260+ miles all on the highway at cruising speed (not more than 75mph) and coming from Bishop CA to Los Angeles CA (an overall drop in elevation of about 3,000ft) I averaged an ALL-TIME-HIGH overall 20.1 MPG!