VW Mk7 Golf R The average OEM 63mm downpipe diameter coupled with a restrictive catalytic converter and varying angles don't allow for ideal flow specifications and result in higher back pressure at the turbo forcing it to work harder and generate excessive heat.
Brand. Volkswagen. Model. Golf R MK7 / MK7.5. Year. 2015+ Tip Style. Quad Tips. Tip Size. 101mm. Compatible with stock cat pipe.