RB N54/N55 5/16" Thick Head Flange with Inserts 320i (F31) it does not block exhaust
$160.00
Description
it does not block exhaust flow as the resonator is only around the downpipe
0L BMW E92 335xi N55 3
2018 AMG C63
we offer a catless version which incorporates a 4" Resonator in place of the catalyst
If you're running E85 or ethanol mixes in your S55 BMW
RB N54/N55 5/16" Thick Head Flange with Inserts 320i (F31) it does not block exhaustThese flanges are designed with true tapered inlets and backside stress channels (as they were from the OEM's). They are a 7 piece design (single main 5 16" thick flange, six exhaust runner inserts with locators for 1 1 4 Schedule 10 Weld Els). Unlike competitive products priced comparably and made from cheap material, these are billet machined from 100% 304 304L material (with certs). The proclaimed flange of choice for many educated N54 N55 turbo
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