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-   Performance, Brainstorming & Tuning (https://www.gmforum.com/performance-brainstorming-tuning-96/)
-   -   Anyone have a Hogan down pipe? (https://www.gmforum.com/performance-brainstorming-tuning-96/anyone-have-hogan-down-pipe-271292/)

Y2kSSEi Jan 27, 2008 07:01 PM

Anyone have a Hogan down pipe?
 
Just curious if anyone had the hogan dp on their L67 and what kind of performance gains they saw.

TommyGloves Jan 30, 2008 01:35 PM

FWIW - I worked with Curt Hogan to get the DP made for our cars. Here's the link to give you an idea of the performance gains:

http://www.bonnevilleclub.com/forum/...ic.php?t=52085

At the time, my mods were 3.5" FWI, VS Cam, PEMs, and a 3.3 pulley.

Good luck.

1994se Jan 30, 2008 03:03 PM

And i now have that same DP from the Dyno chart on my car. When installed with the 3" High Flow Magnaflow cat i could feel a slight seat of the pants difference.

sonoma_zr2 Jan 30, 2008 04:04 PM

I felt it when I put mine on, but it is noisey. Not sure if it is just mine.

1994se Jan 30, 2008 08:41 PM

I didn't know you had a 3" DP. Mine is really loud but still pretty low and not too raspy at lower RPM's, especially when pulling out of gas stations or drive throughs. Higher RPM's i mostly hear blower whine.

sonoma_zr2 Jan 31, 2008 12:21 PM


Originally Posted by 1994se
I didn't know you had a 3" DP. Mine is really loud but still pretty low and not too raspy at lower RPM's, especially when pulling out of gas stations or drive throughs. Higher RPM's i mostly hear blower whine.

My tone is low also, what I mean by noisy is it pings like a leak, but I don't think it is leaking, just "noisy"

1994se Jan 31, 2008 04:40 PM

Our exhaust setups are almost identical i think with the tips being the difference so i assumed yours was low as well. I know what you mean by "noisy", I'm not sure if it's my DP or the highflow cat but something is kind of "ticky" in mine too.


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