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| 05-10-2011, 03:34 PM | #1 |
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Supreme Allied Commander
 
3816
Rep 54,319
Posts
Drives: F80 M3
Join Date: Mar 2007
Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com
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>>> HP Autowerks <<< Berk Technology N55 Downpipe
135i N55 Fitment.
•Ultra low backpressure 4″ downpipe •23HP gain over stock at the same boost level with no tuning devices •Straight shot design for zero restriction and high velocity •Largest possible tubing for quicker spool •Zero taper on flange at turbo for largest possible pressure differential •Largest downpipe on the market, uses more 4″ tube than the competition •100% Made in the USA •Optional Burger Tuning CAN tool for code reading, boost gauge, timing, shift light function, & CEL Code clearing for $100. $599 FREE SHIPPING http://hpashop.com/product.sc?produc...categoryId=143  Last edited by HP Autosport; 09-14-2011 at 11:42 PM.. |
| 06-02-2011, 05:24 PM | #3 |
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Lieutenant Colonel
 
223
Rep 1,565
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The next 135i owner who purchases a 135i full exhaust system or N55 downpipe we will send you this awesome Sunoco Race Fuels Banner to hang in your garage. It's about 3'x4'. Just mention this post!
PS - you've gotta be located within the 48 states.  |
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| 06-18-2011, 01:24 PM | #4 |
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Supreme Allied Commander
3816
Rep 54,319
Posts
Drives: F80 M3
Join Date: Mar 2007
Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com
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N55 catless or catted downpipe
Both standard and coated DP's are in stock!
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| 09-28-2011, 12:57 AM | #8 |
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Supreme Allied Commander
3816
Rep 54,319
Posts
Drives: F80 M3
Join Date: Mar 2007
Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com
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N55 4" DP
Due to demand these DP's are now on back-order, but should be back in stock with in a couple of weeks.
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