It's weird... I noticed the droning when my XJ had stock exhaust. It was a freaky weird growling noise exactly at 1700 RPM and only then. Seriously, less than 1650rpm and 1750rpm or higher, it doesn't do it... At least, I think it was exhaust noise. Someone else described something similar somewhere but I think they attributed it to transmission problems. Don't know. Anyway, it's pretty damn loud and drone-y at exactly 1700 RPM but past that it's not bad.

I drove 30 minutes on the interstate on the way back to school today, but I had my windows down and music on, so I didn't notice any droning.

Then I drove through my school's parking garage and holy ****... it sounds ****ing amazing.

Also, the video does not do it justice. It sounds crazy good.

 

For a larger spark to ignite a better flame front and burn the A/F more effectively. Champions.

 

Will create a weaker spark without upgrades to ignition. The stock gap is set where it is for a reason!

 

Yeah I just picked it up probably going to do it in the morning.

 

Yeah. That's where my plugs are gapped after 30,000 miles and they need replacing...... .035 on Champion Coppers or NGKs.

 

nabbed a large horn from a abandoned unit at work, also cleaned my battery terminals (muddy)

 

Drove through the start of a blizzard. Was wonderful (not) I really wish xj's had better defrosters.

 

Cut old out ready to put new in. Added a FIPK system!!!!

 

How is it at HWY speed? My muffler is falling apart, not any louder though oddly. I would like something a lil louder but I dont want any drone on the HWY. I have the mustang to make noise.

 

No, you replaced the stock air box with a cone filter.

 

That pulls in hotter air than the stock air box did.

 

Fixed it for you.

 

Thanks?

Edit: Oh, I see you edited your original post. At least it's more accurate.

 

Wait, I corrected it again to reflect the K&N website as to the proper description since I don't wont to be incorrect on any description on the interwebs.

Fuel Injection Performance Kit. FIPK.

 

Whatever, man. I'm just trying to stop misinformation and prevent wasted money for people who see this.