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      10-22-2011, 09:45 AM   #1
HP Autosport
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HP Autowerks | AR Design BMW 1M Down Pipes

We are extremely excited to present our 1M 3" Hi-Flo catless downpipes! The only TRUE 3" downpipes currently on the market! In addition to an intoxicating and exotic sound, these downpipes add significant power and virtually eliminate turbo lag, making the fabled N54 engine even more responsive!

Our Hi-Flo 3" Catless Downpipes Feature:

* The only TRUE 3" catless downpipes currently on the market! 3" tubing until cat-back flange - all systems currently on the market reduce to 2.5" much closer to the turbocharger.

* 100% Hand Crafted in the USA - not China - from premium 304 stainless steel - flanges and O2 bungs included!

* Water-jet cut 304 Stainless cat-back flanges, and CNC'd 304 Stainless V-Band flanges.

* 100% TIG welded, argon back-purged.

* Set of our exclusive bomb-proof exhaust gaskets included.

* Grade 10.9 Metric Hardware(145,000PSI tensile strength, C32-C39 Rockwell, Zinc Plated), and Nord-Lock positive locking re-usable washers included.

* Factory location O2 bungs

* Available with a 2000?° F ceramic coating. Coatings come with a 3 year warranty against corrosion and rust to original owner.(HPA highly recommend this to reduce both under hood temperatures and increase the longevity of the DP's)

* Lifetime warranty against any manufacturing defects given to original owner.

* We do NOT grind/polish our welds as some other manufacturers do. Grinding welds compromises the strength of the weld, and can lead to weld failure - especially critical in applications exposed to temperatures in excess of 1200°F. Such temperatures will also rapidly deteriorate the polished finish.

$836.07

***Optional ceramic coating $159***

Oder here:

http://www.hpashop.com/product.sc?pr...categoryId=269
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Last edited by HP Autosport; 07-24-2012 at 12:29 AM.
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      10-27-2011, 11:20 PM   #2
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Catless Down Pipe

Ceramic coated version good in stock!
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      11-08-2011, 05:28 PM   #3
HP Autosport
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Ceramic coated 1M DP's good in stock!
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      11-16-2011, 05:10 PM   #4
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AR 1M Down Pipes

In stock guys!

Catted version is just 1-2 weeks away!
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      11-16-2011, 05:28 PM   #5
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Does it work the same on a non-M 135 with N54 engine?
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7/08 135 Coupe, Crimson Red, 6 SP, Sport, Taupe Lette/Aluminum. Performance Mods: JB4 on Map 5, BMS DP Fix V3, Injen polished intake, AR Catless DP, Maddad resonated mid-pipes, aFe exhaust polished tips, ST Suspension Coil Over and Hotchkis front sway bar. Others: BMS OCC, BT Scanner, Mud Flap. Next Mods: AA Front Strut Brace.
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      11-29-2011, 06:22 PM   #6
HP Autosport
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Quote:
Originally Posted by My135 View Post
Does it work the same on a non-M 135 with N54 engine?
Yes, these will also fit your non-M 135i and 335i!

Ceramic coated versions are in stock!
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      12-13-2011, 01:16 AM   #7
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1M down pipes

Ceramic black coated DP's are in stock!
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      01-11-2012, 12:32 AM   #8
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BMW 1M downpipes

AR Design BMW 1M DP's with ceramic coating are good in stock!
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      01-31-2012, 03:48 PM   #9
HP Autosport
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AR DP

Ceramic coated versions are in stock!
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      01-31-2012, 03:59 PM   #10
HP Autosport
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AR DP

Ceramic coated versions are in stock!
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      02-22-2012, 11:47 PM   #11
HP Autosport
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135i 1M downpipes

Black ceramic coated versions are in stock and ready to ship!
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      03-22-2012, 12:26 AM   #12
HP Autosport
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1M N54 DP's

Black thermal coated version is good in stock.

Cut down on your engine bay heat today!
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      04-13-2012, 10:57 AM   #13
HP Autosport
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1M N54 DP's

Ceramic coated version in stock!
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      06-12-2012, 05:01 PM   #14
HP Autosport
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AR DP

4 weeks lead time on these at the moment!
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      07-19-2013, 12:36 PM   #15
HP Autosport
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Black coated version in stock now!
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