are ground kits good for the frontier? do they add power? and im thinking of getting a dual exhaust but without the y-pipe should i go custom 2.5" with flowmaster mufflers or do they sell a performance exhaust like that

a ground kit is good for any car. it will make everything work better which helps produce more HP.

a ground kit will always help, polar is correct there...i mean, you wont gain 100hp from it, but at the same time, it will run better, in almost every case. grounding has also been found to add some clarity to factory stereos....it did so in my moms volvo..

what about the exhast and does anyone have any info on the best chip for the frontier

about the exhaust..i dont know about a kit, but you could go to an exhaust shop with your own flowmaster single in dual outlet flowmaster muffler and have them bend the pipes for you. thats what i would do...i dont knwo about a chip, sorry.

i think that a good enough muffler shop can make anything into duals, right?

Definitly go with a flowmaster if you want a deep aggresive sound, i have that with 2'1/4" pipe on mine its sounds really good , they also have a gibson exhaust system its like 3 or $400 bucks i think, i know it will give you some good HP tho

Naw son if oy umean like body kit they dont help. On the exhaust stay away from flowmaster not for nissan look up nismo exhaust I think it is nissanpartsforsale.com or go to gibson they are like one of the best for nissan also check out Jim wolf racing.