Forced,

what do you have on yours, didnt you change it after you made it 3 inch?

i was going to get 3 inch off the turbo and all the way back before the rear axel, split it into 2 2inch going out the back with no muffler

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1985 300D - 599,xxxk - blue interior #265 Monark Nozzle, AL129X, 15" Ronals, Gen II Big Brakes hunting
1985 300D - 491,xxxk - in prog-{A-A IC, 3" exhaust, psi\pyro, 28*BTDC, Hella Euros, IP Limiter removal
1985 300TD - 783,xxxk - parts car,used new engine with ALDA cap inplace
1987 Kenworth T-600 8LL 425 CAT Mech. - 6,000,000+k - DEI exhaust wrap, punched through resonators, 1 recent rebuild,

I have a 3" exhaust from the turbo outlet down to a side exit before the RR tire.

Since I didn't know what a cherry bomb was I looked it up on wikipedia...

A glasspack, sometimes called cherry bomb (a popular brand of glasspack), is a kind of automobile muffler in which the exhaust gas passes straight through the center of the muffler. Packed fiberglass surrounds the exhaust channel and absorbs some of the high-frequency sound.

from this page...

http://en.wikipedia.org/wiki/Glasspack

ok, once again for the slow kids... theres no packing material in the muffler. It uses noise canceling among other things to perform its function.


I ponied up $129 for it on ebay over a year ago, and I thought that price was pretty salty. I'd never pay 200, But I think deals can be had.

Here is the thread that I posted (that no one replied to) from 05/2006

http://www.peachparts.com/shopforum/showthread.php?t=153230

IMHO It is a superior product, heavy gauge 304 SS, very solid w/ gorgeous welds. I have no affiliation w/ the company.

Here is their technology page w/ longish video... a bit much at times, but largely within the confines of believability.

http://www.aeroexhaust.com/aero_performance_exhaust.html

heres a view from the tailpipe perspective.




I'll revive that thread, and post pics over there, sorry again for hijacking.

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Cheers,
Robert

No packing in there!

Will straight piping actually produce any difference in performance for a turbocharged 617 engine? My understanding is that the turbocharger creates significant back pressure in the exhaust system, so it seems that unlikely that any performance gains would result from removing the muffler.

It does make a difference, by eliminating any further back pressure, it lets the turbo spool up quicker, also the scavenging of exhaust gasses is far better as indicated by EGT and overall engine temp.

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99 Gurkha with OM616 IDI turbo

2015 Gurkha with OM616 DI turbo

2014 Rexton W with OM612 VGT