IE HPFP Upgrade Kit For Audi B9 S4, S5, SQ5 3.0T & RS5 2.9T

IE HPFP Upgrade Kit For Audi B9 S4, S5, SQ5 3.0T & RS5 2.9T

Marsoni

M251S

$210.00

Get it in 3 business days with 1 day shipping. Friday, May 29

IE HPFP Upgrade Kit For Audi B9 S4, S5, SQ5 3.0T & RS5 2.9TThe IE HPFP Internal Kit upgrades the high pressure fuel pump in your Audi B9 3. 0T or 2. 9T engine with the largest volume possible piston and cylinder design to unlock fuel delivery for hybrid turbos and our Stage 1 2 Plus ECU tunes. Manufactured with top quality components and an industry leading QC process to ensure extreme reliability. Increase your fueling overhead and enjoy worry free HPFP operation for your 6 cylinder turbocharged engine.

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Fast: 2-3 business days
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Like anything off Amazon I wasnt expecting anything perfect and ready to have to mail it back. Pleasantly surprised by the softness and durability. The waist band isn't to small on a medium so it fits actually so comfy. I wear them as underwear and as shorts for my skirts n dresses. Id recommend but I say size up if you want a comfy fit. But down if you want a fitted fit fit. Comfy still is fitted but better feeling on if that makes sense. Also the crotch of the shorts/undies has essentially extra fabric sewed in creating that nice comfort. Ill snag a photo when I have time.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 3, 2026

Verified Purchase

Stephanie Vaughn

West Palm Beach, US

★★★★★ 4

Product varies from package to package

Size: X-Large, Color: Black/Navy/Dark Purple/Red

Over a two year period this is my 4th purchase. They started as sleep shorts and have replaced other underwear most of the time because they are comfortable and the quality is pretty good. However there are differences in between every package. The length has varied up to an inch, the material has changed, and some are slightly tighter than others. That said it works for me. I am a side sleeper and sometimes the side seam bothers me.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on March 9, 2026