anyone intalled NHP full exhaust???

[2K3_Boxster_S]

Originally Posted by Adam

246 whp/218TQ isn't too shabby especially without a tune. Do you still have CEL and exhaust leaks issues?

after cranking all 4 clamps down as far as possible. still very small pinhole size leaks, feel air coming out. I will probably remove them re-position and try again. if that doesn't work, look for some different clamps.

If I am not mistaken (some one can jump in here) I believe when I take it to Richmond, VA to authorized GIAC dealer and its chip or flashed or whatever they do and tuned that they can eliminate the P0420 CEL. or if i am wrong, i know there are some other options rear O2 bung extensions.

the CEL doesn't bother me it has no effect on the car. would be nice to eliminate it though.

[j.fro]

Who is the authorized GIAC dealer in Richmond?

[cnavarro]

Update:

About 8,000 hard miles since May and two welds have broken on the muffler, one on the mounting bracket and the other on the heat shield.

The o2 sensor extensions have eliminated the CEL completely that appeared after about 6,000 miles with the sport cats.

[2K3_Boxster_S]

Originally Posted by cnavarro

Update:

About 8,000 hard miles since May and two welds have broken on the muffler, one on the mounting bracket and the other on the heat shield.

The o2 sensor extensions have eliminated the CEL completely that appeared after about 6,000 miles with the sport cats.

the heat shield weld is only covered for 3 month's. they will repair the mounting bracket weld, but you have to pay for the shipping, probably cheaper to fix it yourself. what type 02 extensions did you use? are they all stainless?

[cnavarro]

Originally Posted by 2K3_Boxster_S

the heat shield weld is only covered for 3 month's. they will repair the mounting bracket weld, but you have to pay for the shipping, probably cheaper to fix it yourself. what type 02 extensions did you use? are they all stainless?

Fixing it myself, just wanted to share my experiences (both good and bad).

I purchased the ones sold by FVD - they were indeed stainless. The only thing missing were copper gaskets for the extension which we sourced locally.

[jhandy]

I have the headers and bypass pipes only and dynoed a modest improvement.
What the worst thing is the supplied manifold gaskets. They are crap and will delaminate and after fixing several leaks, I just reused the stock gaskets, and no more problems noted.

[Adam]

2K3, I was just wondering how are you liking the NHP system these past few weeks and would like an update? Are you just satisfied with it, ecstatic, or do you not care for it? Is the sound and hp gain worthwhile? Did the CEL issue cure itself or is it still there? Did you get a tune or still thinking of getting one? Thanks for the feedback.

[2K3_Boxster_S]

Originally Posted by j.fro

Who is the authorized GIAC dealer in Richmond?

http://www.lufteknic.com/