David P Posted April 20, 2015 Share Posted April 20, 2015 (edited) a fair of appliers! Are you a member of the Stanley Unwin Appreciation Society? Edited April 20, 2015 by David P (see edit history) Quote Link to comment Share on other sites More sharing options...
Abz Posted April 20, 2015 Share Posted April 20, 2015 I didn't say 6" would good haha This is where so many people are wrong....you don't want back pressure,back pressure is a bad thing even on NA's......it's not a 2 stroke it doesn't need to have scavenging effect to draw gasses out!!!!!! The less back pressure the better trust me. It still needs some scavenging effect, this article explains it best. http://www.epi-eng.com/piston_engine_technology/exhaust_system_technology.htm Reminds of some cars in the 90's which had huge diameter exhausts fitted, yet were losing power. The same goes with the Supra. Quote Link to comment Share on other sites More sharing options...
Abz Posted April 20, 2015 Share Posted April 20, 2015 Are you a member of the Stanley Unwin Appreciation Society? Don't qualify yet I am afraid David, they told me you took the last spot Quote Link to comment Share on other sites More sharing options...
Dazzi Posted April 21, 2015 Share Posted April 21, 2015 I had one of these on my black supra when it was NA and NA-T. Was a really nice deep sound. Best sounding exhaust for an NA in my opinion. Looking to buy another for my white NA-T. Cant beat it at this price! Quote Link to comment Share on other sites More sharing options...
Morzy2k5 Posted April 21, 2015 Share Posted April 21, 2015 It still needs some scavenging effect, this article explains it best. http://www.epi-eng.com/piston_engine_technology/exhaust_system_technology.htm Reminds of some cars in the 90's which had huge diameter exhausts fitted, yet were losing power. The same goes with the Supra. You don't need back pressure...it just moves the power up or down the Rev range depending on size of the pipe.a 4stroke engine does not really need scavenging effect. I'm waiting for Chris Wilson to come and back me Up lol Quote Link to comment Share on other sites More sharing options...
mattdavies Posted April 21, 2015 Share Posted April 21, 2015 You don't need back pressure...it just moves the power up or down the Rev range depending on size of the pipe.a 4stroke engine does not really need scavenging effect. I'm waiting for Chris Wilson to come and back me Up lol In the real world how far up the rev range does it move it, In a very primitive example, a friend of mine had her mk3 Golf GTi "tuned" for a TV program, they removed her Miltek cat back and fitted a large bore exhaust plus some other stuff. On the Rolling Road it made less power then stock, A guy then put his hand over the exhaust ( with a glove on ) It made a noticable difference in power. Quote Link to comment Share on other sites More sharing options...
Morzy2k5 Posted April 21, 2015 Share Posted April 21, 2015 It still needs some scavenging effect, this article explains it best. http://www.epi-eng.com/piston_engine_technology/exhaust_system_technology.htm Reminds of some cars in the 90's which had huge diameter exhausts fitted, yet were losing power. The same goes with the Supra. You don't need back pressure...it just moves the power up or down the Rev range depending on size of the pipe.a 4stroke engine does not really need scavenging effect. I'm waiting for Chris Wilson to come and back me Up lol Quote Link to comment Share on other sites More sharing options...
ronttuk Posted April 21, 2015 Share Posted April 21, 2015 ive got 1 on my uk spec no cats your welcome to come see have a listen im in southend not far from you Quote Link to comment Share on other sites More sharing options...
Shane Posted April 22, 2015 Share Posted April 22, 2015 My missus has one on her NA. CW 1st decat and second cat fitted. It is loud for sure and I would find the drone a bit tedious on a long run, but lots of people comment how nice it sounds, except David P, he always says it sounds terrible I tried one on my decatted TT and didn't like the sound at all. Click on this to listen Quote Link to comment Share on other sites More sharing options...
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