Exhaust Drone

[Dose Pipe Sutututu]

resonators don't do much.. what you need is a mid muffler..

the HKS Super Dragger is a decent exhaust, has 1x large mid muffler, followed by a resonator, then a massive cannon. I got one recently on my current car and I love it.. not to mention the pipe is about 3.5" wide

[simpletool]

Does anyone have underneath pics of the mid and rear muffler space of an R33 . I believe they don't have a lot of space and it would be good to know how big the oval mufflers can be . My exhaust is some sort of Nismo the car came from Japan with , pretty quiet and I'm curious to know what they've done to shut it up . I think most Jap exhausts would be 80mm because they can't replicate (metricate) 3"/76.2mm .

A .

You can fit 16" x 10" x 6" as the rear muffler, the centre muffler needs to be smaller in every dimension. At a guess I'd say 12" x 8" x 5" - even that would be maxing out the space. The 2 x 2.5" Fujitsubo system I have lying in the garage has pretty much the biggest mufflers possible in each space. I thought it was too quiet (And so did my friends) so I replaced it with a 80mm Apexi Bomber (copy) which drones at 2500-3000rpm as you would expect.

You could eliminate most of the drone with a side-branch resonator, or a big oval muffler (with resonance chamber). But a big muffler will cost $400+.