IMR G70 and Stinger HFC Primary Downpipes

There is currently a 2-3 week lead time for the hand made custom product. 

IMR has developed a set of HFC downpipes to enhance the power and let the turbos breath on your 3.3TT Stinger or G70. Our primary downpipes feature a ported mouth, allowing proper flow from the turbo through the downpipe. We've also increased the inner diameter of the exhaust pipe from the factory 2.00" to 2.50". This will allow the air to flow faster from your engine and through the turbines in your turbo. The end result is faster spool of your OEM or aftermarket turbos. This will compliment our secondary down pipes, mid pipes and axle back which are now available.

-304L Stainless steel backpurged tig-welded construction

-304L Stainless flanges, allowing proper heat dissipation and protection from the elements

-200 Cell Cats

-*****Fastening Hardware now included*****

We now carry o2 sensor spacers that eliminate P0420 codes.

Go HFC for more power and faster spool than OEM!!! Go Catless for even more performance gains. 

Down pipes with cats typically don't require a tune to avoid overboost. Catless do.

FOR OFFROAD USE ONLY