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  1. #1
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    Thumbs up ar design 135i/335i 3" Hi-Flo™ Downpipes w/Race Cats

    ar design 135i/335i 3" Hi-Flo™ Downpipes w/Race Cats

    We are extremely excited to present our 135i 3" Hi-Flow™ downpipes, now with Magnaflow race cats! The only TRUE 3" catted 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" Downpipes w/Race Cats Feature:

    * The only TRUE 3" catted 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 (cats are made from 409 Stainless) - flanges and O2 bungs included!
    * Water-jet cut 304 Stainless cat-back flanges, and CNC'd 304 Stainless V-Band flanges.
    * Magnaflow 3" metal substrate race cats
    * 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.
    * 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 1600°F. Such temperatures will also rapidly deteriorate the polished finish.
    * NO CEL on pre 29.2 Progman cars - post 29.2/MSD81 testing is currently being completed, but due to the superior quality of the cats, we expect no issues.


    Promo Video from out Catless Downpipes:
    Vimeo:

    HD Direct Download: right click, save as. Requires DIVX codec. 38mb.
    Want it uploaded some other way? Just holler!


    More information on our Ceramic Coatings:

    The coatings we offer are capable of withstanding temperatures of 2000° F. In addition they offer excellent chemical and corrosion resistance and possesses excellent thermal barrier characteristics, providing a dramatic reduction in radiated heat. This means reduced under-hood temperatures, accelerated exhaust gas velocity and a longer life expectancy for the downpipes.

    Ceramics stand above all other thermal barrier coatings currently being used in combustion chambers. Ceramics have characteristics shared by no other product, providing an unrivaled layer of thermal protection to piston tops, aluminum heads, stainless, iconel and titanium valves. Ceramics "move" heat, reducing detonation and increasing the effective oxidation of fuel. When polished, it provides a highly reflective surface that further aids in improved flame travel. Unlike previous ceramic coatings, ours is not subject to cracking and flaking, which can lead to extensive engine damage. In fact, Ceramic coatings actually strengthen the coated part. The cured "Cermet" provides a cap of material that can withstand far more heat. During testing when sufficient heat was applied to a piston to melt the aluminum, the Ceramic did not melt, rather it held the softer aluminum together.

    The Satin Ceramic Exhaust Coatings we offer are the most advanced exhaust system coatings available. They are a very durable ceramic-reinforced coating available in various shades. When properly applied, it becomes the most effective thermal barrier coating available, increasing performance while extending component life, and has been tested to over 2000° F without lifting, cracking or flaking

    2000° coatings are available in the following colors for an additional $159

    Satin Grey Ice
    Click here to enlarge
    Satin Titanium
    Click here to enlarge
    Satin Blue
    Click here to enlarge
    Satin Fresh Blast
    Click here to enlarge
    Satin Grey
    Click here to enlarge
    Satin Black
    Click here to enlarge


    Now available at $1,029 including our exclusive gaskets and hardware! Please call, PM, or visit our website 135i/335i Downpipes w/ Race Cats to order!

    Emissions Test Results Below (State of Colorado)
    Click here to enlarge

    Click here to enlarge

  2. #2
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    Quality pipe and option!

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  3. #3
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    1 out of 1 members liked this post. Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Quality pipe and option!
    Thanks! We pride ourselves on the quality of our products as well as the precise fitment that they offer.

  4. #4
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    very nice..

  5. #5
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    Do these bolt up to the factory exhaust system?

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    1 out of 1 members liked this post. Yes Reputation No
    Click here to enlarge Originally Posted by THATDONFC Click here to enlarge
    Do these bolt up to the factory exhaust system?
    Of Course! With perfect fitment every time guaranteed.

  7. #7
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    1 out of 1 members liked this post. Yes Reputation No
    Where are you guys located? In California? I have a 335is and thinking about buying a set but have concerns that you don't show where you guys are located or a phone number to call.

    Thanks!

  8. #8
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    We are located in Denver, CO. You can reach us by telephone at (303) 351-3515

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    Thanks for the fast response! What is the lead time if ordered this week?

  10. #10
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    Click here to enlarge Originally Posted by gocabron Click here to enlarge
    Thanks for the fast response! What is the lead time if ordered this week?

    I have a set boxed up and ready to go out right now!

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    Bump!

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    Bump!

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    Bump for street legal power gaining downpipes!

  14. #14
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    Bump!

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    Bump!

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    Bump!

  17. #17
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    Random GO FAST tuesday Bump!

  18. #18
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    Every Thursday I be bumpin!

  19. #19
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    Random Tuesday Bump!

  20. #20
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    Moved to n54

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

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