displaying posts 1 to 4 of 4

Author Subject: Centre box cut out
Carl GTI


Location: Bexleyheath

Registered: 11 Aug 2015

Posts: 40

Status: Offline

Post #1
So the middle box blew a massive hole right in the middle of the box - the gases directly hitting the underside of the car. I cut it out and welded a pipe section in its place. Now the exhaust note has a slightly deeper tone, but no increase in noise levels, at any rev range.
Very happy with the result. Probably saved a few grams in weight too.

Thought I'd post it up here in case anyone was deciding whether to do the same.
Posted 13th Jan 2019 at 17:41
gnrlee Forum Admin

Location: Leeds

Registered: 20 Aug 2005

Posts: 8,555

Status: Online

Post #2
I've never blown a mid box before
Was always the Cat that gave out for me!


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Posted 13th Jan 2019 at 19:25


Location: bristol

Registered: 02 May 2016

Posts: 134

Status: Offline

Post #3
Posted 14th Jan 2019 at 00:39


Location: Cologne

Registered: 09 Nov 2015

Posts: 300

Status: Offline

Post #4
I thought the midbox would minimise resonances espacially at about 3000k rpm. Mine rattles af in that region as presumably the centre tube in the midbox broke and is loose now.
Posted 14th Jan 2019 at 07:52

Chris Knott Insurance
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