Sold: Redstar Catted High Flow Downpipe DP - GESI 400 + Heat Shield

[30MilesOffshore]

For Sale: Redstar Downpipe DP
Price: Price drop $750
Shipping: Will split shipping cost 50/50 with buyer
Shipping: via UPS or FedEx (whichever is cheaper). Find quote online from zipcode 28270 - Box Size: 9x26x6 inch - 12lbs
Condition: Used but great shape - has 1 ding on heat shield on the back side as seen in pic. No holes. Heat shield metal still intact.
CEL Free Rating: I ran this for 1.5 yrs with no issues. However, I did get a CEL light twice and both times were in January 2025 when the weather was extremely cold that day. Not sure if that had anything to do with it, but just being transparent for you.
Retail: $1800 when purchased
Website: GEN2 (this pipe) is no longer sold. Here is link for current GEN3 pipe.
https://redstarexhaustusa.com/bmw-b...6/73-opf_delete-no/139-straight_02_spacers-no

Features from manuf website:

• CEL Free Guide
  • This guide is intended solely to assist you in making the best possible choice to remain Check Engine Light (CEL) free without requiring a tune. While the high-quality converters we use significantly reduce the risk of triggering a CEL, no aftermarket converter can guarantee complete prevention due to differences in factory calibrations, sensor behaviors, and vehicle conditions.
• High Flow - GESI GEN2 400cpsi- catalytic converters rated for 1000hp. The new GEN2 series provides a significant improvement in exhaust flow over stock and offers the latest emissions technology.
• OE-style Heat Shielding with ceramic inner liner - signature REDSTAR thermal management feature that reduces radiant heat from the exhaust pipes up to 70-80%.
• Huge 108MM reduced to OEM spec
• Flow-optimized smooth transition design
• Significant power gain
• Faster spool up and better throttle response
• Increasing the life of the turbo
• Reducing under hood temperature
• Adds a very nice tone to the exhaust
• 100% bolt-on installation
• 100% TIG welded and back purged
• Highest quality 2.0mm wall 304 stainless steel
• OEM-spec V-band flange
• All brackets and mounts as on OEM unit

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[30MilesOffshore]

Price drop..... $750

 

[Supraluv]

I'm tempted. Will have to talk with the better half.
What was the sound like after install? Just curious.

 

[30MilesOffshore]

It's sold but it sounded good. You could hear the turbo more vs stock and the exhaust note sounded clean with just a little deeper tone.

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