Sparks makes some AZZ KIcking Engine Parts...

They also built a "MEAN AZZ" BITD Engine for Justin Lambert (owner of Cognito Motor Sports) he just won the Silver State 300 with his New Sparks Powered XP 4 1000...

 

What happened to the original "real world exhaust testing" thread?

 

Which Sparks system did you test? Slip on or full system? What was the AFR while you were testing? Did you have to do some tuning to keep the AFR consistent?

 

good questions empire.

 

Sparks full system

As stated in my post...Dobec Auto tune controller with cruise set at 13.5 AFR and WOT set at 13 AFR

Chris

P.S. You can now buy just the front end of this system to retrofit onto the existing Sparks mufflers. This consists of a header and new mid pipe to hook into the mufflers.

 

So you can just get the header now instead of having to buy the full system if you already have the slip on?

 

Yes... it comes with header and new mid-pipe... which does away with factory donut gasket... You can buy this separately if you already have the slip-ons.

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Interesting thanks for the info

 

we found the same results on the dyno and the desert/dunes.

 

Been looking at exhaust, looks like I'm going with sparks. Do you have any video of the sparks? Just didn't really want to deal with repacking the cans but I've always liked sparks exhaust had it on all my 4 wheelers. If you go full system do you have to do the clutch kit and tuner?. Slip on just as good?

 

The full system is better... the length of the primaries is longer and different diameters than the stock pipe. .. so yes. ..I recommend a tuner... it is flowing air differently than stock. Yes I would recommend a clutch kit. .. it is producing more power than stock and easily revs past 8400 rpm which is above where you should have it clutched for peak horsepower.

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Ok thanks for the info. Think I'm gonna go the sparks route.

 

Thanks for sharing your results!! I've been back and forth between the Sparks and Barker exhaust systems. The Dobeck Gen 4 is the only fuel controller to run in my opinion! They're awesome! :ride:

 

Hey Guys,

Here's a picture of an installed system. Let me know if you have any questions! And, a link to the info on our site: X-6 Stainless Steel Exhaust System, Polaris 2014- RZR 1000 XP/ XP4

 

Is there one like this for the 900? Is the plumbing on a 1000 exhuast bigger in diameter than a 900 exhaust? It looks bigger in the pics.

 

Does your full system have a o2 bung?

 

Yes, they have an O2 bung.

 

Like to see how the SLP compares too

 

does the sparks exhaust come with a tuner for 995? Or is that exhaust only

 

That is the exhaust only. Some many people have so many different preferences about fuel controllers, so we give them the choice of ours or someone else's. We will have a package together shortly which will offer all our "bolt-on" products in a kit.

 

Just curious....what's the AFR on an all stock XP1000 at WOT at max RPM?

 

X2

 

How loud is the sparks exhast?

 

Because of the way the UTV exhaust is routed, it's hard to get a solid SAE db rating, but here's short sound clip.

 

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I am wanting to purchase a slip-on exhaust on a stock XP1000 without having to re-clutch or tune...which is a better set-up between Sparks Racing slip-on vs. Alba slip-on?

 

You are not "required" to tune or install a clutch kit with our slip-on, but a couple things to note are you will limit the benefits of the slip-on by not installing a tuner, this is from an ignition and fuel stand-point. Also, the clutching on the stock XP1K leaves a ton of room for improvement, so I would suggest not taking the that option off the table from a performance perspective.

 

Sent you a pm.

 

Ordered my stage 2 kit today Brandon. Travis was helping me and was great. He wasn't sure about the forum discount and was going to ask you about that. Awesome customer service can't wait till I get this installed! ! Thanks again.

 

Good deal! We will get you taken care of. Please let us know how it turns out!

 

I will for sure. I'll do a full review.

 

Sparks has been selling quality products for many years.

 

Sparks, Now that the Dobeck is out for the 2015 xp 1k. Have you guys had a chance to get any numbers with your exhaust and fuel controller?

 

Not yet, we prefer to use the Power Commander platform, and we are still waiting to get our hands on one of them. We will keep you guys up to date as this progresses.