i have been looking for some fellow HR owners with hks exhaust...but no dyno's yet........pls post if you got one!......i feel like i lost low end powa...my butt dyno is crappy
thanks

 

You will loose alot of Low End! DO you know what your AF is? I am sure it leaned out the car. I Dyno'd @ 265 WHP on a Dynopack. High exhuast temp! They didn't do an AF reading. I got jipped.

I will have Dyno results after Tuning later this month. But I have alot of other bolt-ons. So I won't be of much help to you.

 

Not to hijack the thread, but Lakeside.......have you thought about swapping back in the stock intake boxes? I know from experience that the long tube style CAI's can also cause a loss in low range, along with throttle response and even some top end power. Just a thought.

 

nope bro.....im planning to get TP.....and a tune

 

I thought Injen ones gain top end?

 

According to his sig he has nismo intakes. Their not cai's i dont know whay he put that. THeir short rams with block off plates, look at my avatar.

 

my gawd this is a question about the exhaust and u guys are talking about intakes!lol.......
cool!

 

I stand corrected..........I brought the intakes up because he said he lost low end power, and I thought I would see if there was something else that could be the cause. Back on topic.

 

this is what forums are for!no biggies!

 

lol I have both Injen and Nismo intakes. Neither have been installed. Will sell the Nismo Intakes sometime soon.

 

lol butt dyno is correct that exhaust weighs like 900lbs

 

I have just an ISIS true dual(hks knockoff) on my 08 and I noticed some loss in low end power but it also feels like it revs faster through the rpms and topend is absolutely gained. A fellow car buddy of mine who i drive around alot also definetly said as a passenger that it has more top end pull compared to when i was all stock! Nothing crazy though

 

You guys must have sensitive butt dyno's. Are you sure the the added noise wasn't giving you the illusion of going faster?

 

lol

 

So 350z owners with a true dual exhaust need a tune in order to get the power out of there full exhaust set ups?

 

I would have to say so! I have lost a noticeable amount of pull in the Low to Mid range. I know for a fact the car is lean. I am having it tuned in 2 weeks to resolve the issue.

 

I would think so but that would defeat the purpose of modding the car if it's leaning it out and making you LOOSE power.. You know.. hahaha. The more and more I read the forums the more I miss my Turbo cars :/

 

For me with just Greddy Turbo Ti-C and test pipes the Cipher shows 11.6~ A/R on high RPM full throttle pulls!!! weird hah. (maybe my filters are really dirty?)

 

Good luck bro when you get it dynoed. I still haven't bought my tp's yet

 

Just a catback exhaust shouldnt make your car run lean imo. Our cars run pretty rich from factory and drops down to 11 AFR's up top frm 6500+