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Old 06-24-2005, 10:19 PM   #31
WillieB
Registered User
 
Join Date: Feb 2005
Location: Canada
Posts: 42
Talking Hey Yellowbox & Tech986Art....Report on the GHL...

Yellowbox, I have a Base 2.5L with and Evo High Flow Intake. The GHL you will get from Velocity Factor is the same for Base and S. I also verified with the guys at GHL by phone. It is not an exact fit as Yellowbox, on your vids (if that is you) you had to modify and create mounts to make it fit. My mechanic had a welder and machinist make all of the parts and they were perfect. She is solid.

Review: Be prepared as it is no word of a lie, at 2K - 3K RPM while in low gear, when you are cruising and needing just a bit of throttle in low gear, it resonates like crazy (low bassy sound) unless you try to keep it under 2K RPM or above 3K RPM. Even top down it is quite loud. I can however have a conversation with my wife at the same time & it did not drown out my stereo (stock factory amp). But will I get rid of it and go for stock? No!! It sounds wicked when on full throttle and revving at idle with no resonance at idle. From launch and running it thru the gears at speed no resonance as she sings a sweet symphonic sound working together with the Evo to produce music to my ears. It does sound F-1 Schumacher going through underpasses. You also do not notice at WOT how loud she is singing until you have another car beside you and the sound deflects off of it or an wall etc. I also notice she pulls through the revs stronger & cleaner than ever before. Def a HP gain. Take my word, this Exhaust is definitely, "Non-Rice!" No pun intended against ricers, it was just never my thing.

This is not an exhaust for the faint. My Boxster is a Sunday driver/garage queen for short cruises. But for those that use it as a daily driver for a long commute or cross country, it may not be for you. You may want a PSE or gamble and be the Ginea Pig and go with a Supersprint. I saw the PSE vid clip in our thread here and it is that vibrating sound I did not want while revving. It does sound great as well. GHL does not do that or have the semi-stalling feature from back pressure you saw with the Supersprint Mini Cooper. Not saying the Supersprint doesn't sound good as no one has made any claims about it on a Boxster.

Story: My wife was driving behind my Box in our other car on my way to get the install done. I pulled away hard and fast with the Evo Intake wailing as I hit 4K RPM+. I asked her later if she could hear it from behind and in the distance and she said no. Now with the GHL, I am quite sure she will be able to hear it as the intake is internal to the cockpit and the exhaust sound is rear external. It sounds different in the car while I was revving it and while she was listening in the back. Alot louder in the behind. ie) Like a Ferrari/Muscle Car taking off, but it is all Porsche!! This is my description of the sound. Overall: Sound=10/10; Resonance=3/10 (Only at 2K - 3K cruising; WOT - none) Look = 10/10 (Almost Murcielago with 2 chrome 5" straight pipes sticking out of the ass).

Tips: Get a mechanic who does alot of mufflers for tuners who can fabricate a quality mounts. I would swear his mounts were straight from GHL. GHL shld have mounts like these made and sent with the exhaust - the only downside to the product in addition to the resonance at 2 - 3K RPM.

Last edited by WillieB; 06-24-2005 at 10:26 PM.
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