JnrEast21 Posted May 17, 2010 Share Posted May 17, 2010 hey guys, if i put a double decat on my n/a, will i have to do anything to the ecu or will it run fine as she is? Link to comment Share on other sites More sharing options...
Fitz Posted May 17, 2010 Share Posted May 17, 2010 Will run fine. Link to comment Share on other sites More sharing options...
Supranature Posted May 17, 2010 Share Posted May 17, 2010 Will run fine. But will be (extremely) noisy to a possible "chavy" level Link to comment Share on other sites More sharing options...
Fitz Posted May 17, 2010 Share Posted May 17, 2010 But will be (extremely) noisy to a possible "chavy" level Dependant on Exhaust, could be stock. Link to comment Share on other sites More sharing options...
nevins Posted May 17, 2010 Share Posted May 17, 2010 Thats whats on mine and it aint too loud, only if you rev it high. Thats with a stainless manifold and 3" inch system Link to comment Share on other sites More sharing options...
The Raven Posted May 17, 2010 Share Posted May 17, 2010 Thats whats on mine and it aint too loud, only if you rev it high. Thats with a stainless manifold and 3" inch system If it aint to loud than your already a chav and you just dont notice:p Link to comment Share on other sites More sharing options...
nevins Posted May 17, 2010 Share Posted May 17, 2010 If it aint to loud than your already a chav and you just dont notice:p Can assure you im 100% not a chav, but just used to working on competition cars in a garage so used to the sound :p Link to comment Share on other sites More sharing options...
JnrEast21 Posted May 17, 2010 Author Share Posted May 17, 2010 lol she has a Motoria 3" stainless cat back on atm, but thinking (depending on how loud the decats make it) a blitz nur spec r might end up order of the day... i love em loud Link to comment Share on other sites More sharing options...
nevins Posted May 17, 2010 Share Posted May 17, 2010 thats the cat back I have . Link to comment Share on other sites More sharing options...
JnrEast21 Posted May 17, 2010 Author Share Posted May 17, 2010 thats the cat back I have . do you have a vid of your exhaust so i can gauge the potential loudness? Link to comment Share on other sites More sharing options...
nevins Posted May 17, 2010 Share Posted May 17, 2010 no sorry, its a pain trying to run behind when driving the supra lol, on a serious note, I would say its as loud as a tt. There is a thread with the db readings of exhausts on here that Homer put together and the system is on there. Link to comment Share on other sites More sharing options...
Aero-M Posted May 17, 2010 Share Posted May 17, 2010 Mine has a second decat on it, that is more than enough for me, On a long drive it does get a bit annoying. Fully decatted n/a's do sound nice as they pass and for a short time inside, but would do my head in permenatly. Im glad i didn't fully decat mine. Link to comment Share on other sites More sharing options...
JnrEast21 Posted May 17, 2010 Author Share Posted May 17, 2010 with the decats do you get a nice deep rumble at idle? mine sounds almost stock when she's idling at temp Link to comment Share on other sites More sharing options...
Guest im_dubbin_it Posted May 17, 2010 Share Posted May 17, 2010 i bought my supra which had already been fully decatted with an apexi exhaust, it is very loud, i can be heard from about 2 mile away? if you were on the japfest convoy it was the black one with gold wheels/lights:) Link to comment Share on other sites More sharing options...
nevins Posted May 17, 2010 Share Posted May 17, 2010 Yeah it has a deep idle, not sure if it would sound the same on a stock manifold though Link to comment Share on other sites More sharing options...
JnrEast21 Posted May 17, 2010 Author Share Posted May 17, 2010 nice one cheers mate no i didnt make Japfest, wish i had of done though, especially after watching the vid and looking at all the pictures!! Link to comment Share on other sites More sharing options...
JnrEast21 Posted May 17, 2010 Author Share Posted May 17, 2010 also are the Whifbitz decats the best ones to go with? or are there better ones out there? Link to comment Share on other sites More sharing options...
nevins Posted May 17, 2010 Share Posted May 17, 2010 I had mine off a company that I was put onto by a member on here but can't remember the name of it lol. Link to comment Share on other sites More sharing options...
JnrEast21 Posted May 17, 2010 Author Share Posted May 17, 2010 I had mine off a company that I was put onto by a member on here but can't remember the name of it lol. one legged men and arse kicking contests come to mind... Link to comment Share on other sites More sharing options...
Fitz Posted May 17, 2010 Share Posted May 17, 2010 Have a Read through here bud, you'll find many brands and types (de-catted or not) http://www.mkivsupra.net/vbb/showthread.php?t=193462&highlight=video+exhausts Link to comment Share on other sites More sharing options...
Supranature Posted May 17, 2010 Share Posted May 17, 2010 http://www.youtube.com/watch?v=yJ-9gTeIMK8 This is a video of W4LKER who done a decat on his NA last year. IMO it is just too loud and attention grabbing. Ensure you are 100 percent legal and get used to being pulled by the plod and have knobs challenging you persistently at lights. There is some evidence that suggests you lose a fair amount of mid range torque after decatting a NA, but you feel that it is faster due to the noise. Mid range torque is the 2JZ-GE's forte.You will remove the best thing about the engine. Link to comment Share on other sites More sharing options...
Guest im_dubbin_it Posted May 19, 2010 Share Posted May 19, 2010 that sounds exactly the same as mine.... Link to comment Share on other sites More sharing options...
hackin_n_bashin Posted May 19, 2010 Share Posted May 19, 2010 I'm running hks second decat, and a 3" (or 3.5 can't remember which, originally off a tt) hks silent hi-power exhaust on my NA. Lovely rumble on idle, nice at WOT, but between 1.5 and 3k revs its FAR to loud! Anything more than 10 minutes in it pootling along in that range and its deafening Link to comment Share on other sites More sharing options...
Dave Posted May 19, 2010 Share Posted May 19, 2010 mine isnt loud ive got chris wilson front decat pipe and a long life exhaust 3" Link to comment Share on other sites More sharing options...
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