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Dynamic Autowerx - B58 5" Downpipe


This is the largest down pipe on the market with a smooth transition from 4.5" to 5" to 4" to the Oem connection of 3.15"


Nearly all the down pipes on the market neck down quickly to 3" right @ the start of the flex joint. The most important section of the exhaust is right after the turbo & why Dynamic Autowerx have what you see here.

Dynamic Autowerx - B58 5" Downpipe

SKU: daw-b58-5dp
  • Turbo Guidelines

    Always change oil based on how you driven the car in X amount of miles & not solely on miles alone.

    Few Popular Choices
    Minimum Oil
    Group 4 Oil 30w or 40w
    Motul xcess, 8100
    Liqui Moly synthoil,

    Group 5
    Highest quality oils are Ester base Group 5 Oils
    Amsoil signature series
    Redline High performance
    Motul Sport

    No cheap dealership oils or 20w oils

    Absolutely no Oem/Ots tunes on our turbos or risk damage @ your expense.

    No Oem air box or panel filters over 21psi on any of our turbos regardless of what you heard "you risk damage to the turbo @ your expense."

    If you have the Mst air box replace the filter with this one "much better option"PR-CC-194-VS-90-BK-KIT

    Dinan is another good choice

    At some point you will need a proper exhaust especially if running hard often & usually around 28-29psi on the BMW & much sooner on the Supra (24psi)

    Dinan 3.25" mid-section for F series is perfect for most but for guys on built engines etc a 3.5" is the absolute perfect exhaust nothing larger tbh, the end of the dp should always match the Dia of the exhaust so 3.5" Exhaust should have the dp end opened to 3.5" or it's pointless.

    Proper maintenance prior to turbo install & other high performance mods are essential to overall success of your build.

    Proper warm up & cool down is essential to keeping your turbocharger healthy.

    Nearly all Turbo issues can be avoided by the end user. NOTE: Please don't touch the compressor wheel "don't move the wheel from side to side" all you're doing is causing an issue. There will always be side to side play (Radial play) until oil pressure is present.

  • Full Stainless-Steel, Stainless-Steel flex joint with an inner Stainless liner inside for durability, longevity, fully Tig welded & back purged locally @ our fab shop/welder.


    What you'll notice is a much deeper exhaust note, better spool/response. If you ever want a custom exhaust, you can simply have the very end of the down pipe (3.15") section swedge up to 3.5" or simply just cut that 3.15" section & you will be left with a 4" Dia section.

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