Quote:
Originally Posted by Universal_Magnetic
Like i said a few weeks ago, there is a huge demand for xi downpipes. The only issue i have with these is what i saw in a recent review...they taper down to 2.25" instead of 2.5" like most other pipes..i think AR tapes down to 2.5", MS 2.5" as well...even the UR pipes are 2.5" throughout. Why such bottleneck (3" to 2.25") taper with these pipes?
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That's not a bottleneck, it's the size of the stock catback
Changing diameter causes less of a disturbance in comparison to a 2.5" pipe wrapped around a flange with a 2.25" ID.