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Forced Induction Forum
Discuss supercharging, turbocharging and even nitrous and water injection here.

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Old 07-28-2010, 05:32 PM   #1
HPF Chris
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Thumbs Up HPF Catback Stainless EXHAUST for the BMW 335i - VIDEO

Our "pre-production" catback exhaust system for the 335i is now completed. We designed the highest flowing exhaust system possible given the space constraints and the sound quality we wanted to achieve. The HPF 335i exhaust system was designed to bolt right up to our 335i single turbo kits (once they are completed). The net result is a 3.5" v-band flanged, muffler-less, cat-back, stainless steel exhaust system that splits into two 3" sections after the rear differential. Ground clearance has been kept to factory specs and the resulting sound is similar to an exotic.

I will have pictures to follow in a few weeks and we will release pricing and begin selling the exhaust system shortly. Here's a video clip of the exhaust in action.

If you have any questions about this exhaust, please email david@horsepowerfreaks.com.


Last edited by HPF Chris; 07-28-2010 at 05:34 PM.
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Old 07-28-2010, 05:53 PM   #2
Forcefed M3
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I've seen this in person before I moved. Very very nice, well put together! Damn thing sounds like a lambo!!

Last edited by Forcefed M3; 07-28-2010 at 05:54 PM.
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Old 07-28-2010, 06:02 PM   #3
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Sounds like a Ferrari!
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Old 07-28-2010, 08:59 PM   #4
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WOW this exhaust sounds great!!! Too bad this 335i is Auto!! Can't wait to see new products for the 335i!! HPF FTW!!!
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Old 07-28-2010, 09:18 PM   #5
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Sounds great Chris! I think it sounds like a 335i with a HPF Exhaust!
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Old 08-01-2010, 03:15 AM   #6
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Sounds awesome! Another great product from HPF.
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Old 08-01-2010, 11:33 AM   #7
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Good stuff HPF, I like the gurgle it gives of throttle, provides a mean tone to it. WOT sounds pretty damn good!

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Old 08-03-2010, 12:35 AM   #8
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Sounds kinda like a Murci..........thats missing 6 cylinders

Great work as always HPF

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Old 08-03-2010, 01:20 AM   #9
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kinda reminded me of an aston martin
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