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BMW M3/M4 Resonated S55 Downpipe

$1,299.00
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Product Description

We are extremely excited to present our new M3/M4 3" Resonated downpipes! These TRUE 3" downpipes will add significant power, reduce drone and virtually eliminate turbo lag, making the S55 engine even more responsive!

Our Hi-Flow 3" Resonated Downpipes Feature:


Typical gains WITHOUT tuning in the 25-30whp range!

Resonators will reduce cabin drone.

100% hand crafted in the USA from premium 304 Stainless Steel - flanges and O2 bungs included!

CNC'd 304 Stainless cat-back flanges, and CNC'd 304 Stainless V-Band flanges.

100% TIG welded, argon back-purged.

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. 

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