matth76 Posted April 19, 2009 Share Posted April 19, 2009 Hi Has anyone got one of the new Invidia Q300 true dual cat back exhaust (http://www.z1auto.com/prodmore.asp?model=350z&cat=exhaust&prodid=3531) or G200? Are Invidia exhausts very easy to install and fit - ie no problem with hangers or clamps etc (are Invidia a very good quality make - ie up there with the likes of HKS, Greddy etc)? A lot of the true dual exhausts with x-pipe advertise impressive gains from just a bolt on. The Q300 which I like the look of says this exhaust will get 20+ wheel hp. What does the "X-Pipe" actually do - it is better having one than not? I thought any initial exhaust gains get cancelled out by the stock ecu and you see no power increase - can anyone confirm what the case actually is, any dyno's before and after? Also will I see a loss in power low down the rev range in sacrifice for higher end power with fitting a true dual exhaust and X-pipe or is it an increase in power right through the band (my car is totally stock)? Thanks for any info and help. Quote Link to comment Share on other sites More sharing options...
M13KYF Posted April 20, 2009 Share Posted April 20, 2009 ECU does cancel out any gains from the exhaust Quote Link to comment Share on other sites More sharing options...
rmmackfc Posted April 20, 2009 Share Posted April 20, 2009 ECU would also cancel out any air intake improvements too Quote Link to comment Share on other sites More sharing options...
IanS16 Posted April 20, 2009 Share Posted April 20, 2009 I thought Adam had said that was a myth Quote Link to comment Share on other sites More sharing options...
rmmackfc Posted April 20, 2009 Share Posted April 20, 2009 IIRC ECUs differ in US, UK and Japan though Quote Link to comment Share on other sites More sharing options...
martinmac Posted April 20, 2009 Share Posted April 20, 2009 ECU does cancel out any gains from the exhaust Not after tomorrow Quote Link to comment Share on other sites More sharing options...
Stew Posted April 20, 2009 Share Posted April 20, 2009 ECU does cancel out any gains from the exhaust Not after tomorrow I expect a call with the results Mart! Quote Link to comment Share on other sites More sharing options...
martinmac Posted April 20, 2009 Share Posted April 20, 2009 I will do a full post after its done. Quote Link to comment Share on other sites More sharing options...
fatalus Posted April 20, 2009 Share Posted April 20, 2009 ECU does cancel out any gains from the exhaust Not after tomorrow Sounds intriguing!! Tell us what you did and results ASAP! Quote Link to comment Share on other sites More sharing options...
R800NER Posted April 20, 2009 Share Posted April 20, 2009 RStuning Martin? I am intrigued Quote Link to comment Share on other sites More sharing options...
Chris`I Posted April 20, 2009 Share Posted April 20, 2009 RStuning Martin? I am intrigued Not RS tuning, but could be interesting Quote Link to comment Share on other sites More sharing options...
R800NER Posted April 20, 2009 Share Posted April 20, 2009 You do realise the swarm of people that will be wanting the service if remaps on the ECU work....Many people hear are happy to settle with just the noise of the intake/exhaust/high flow cats etc.....but more BHP? SIGN ME UP Quote Link to comment Share on other sites More sharing options...
martinmac Posted April 20, 2009 Share Posted April 20, 2009 I have bumped the original thread. Get searching on e-bay Quote Link to comment Share on other sites More sharing options...
sl114 Posted April 20, 2009 Share Posted April 20, 2009 Quote Link to comment Share on other sites More sharing options...
IanS16 Posted April 20, 2009 Share Posted April 20, 2009 ECU does cancel out any gains from the exhaust Not after tomorrow Ahh Nismo Quote Link to comment Share on other sites More sharing options...
Stew Posted April 20, 2009 Share Posted April 20, 2009 You do realise the swarm of people that will be wanting the service if remaps on the ECU work....Many people hear are happy to settle with just the noise of the intake/exhaust/high flow cats etc.....but more BHP? SIGN ME UP Couldn't give a monkeys about BHP. It's just a number. Sign me up for a nice fat curve! Oh yes! Quote Link to comment Share on other sites More sharing options...
Chris`I Posted April 20, 2009 Share Posted April 20, 2009 You do realise the swarm of people that will be wanting the service if remaps on the ECU work....Many people hear are happy to settle with just the noise of the intake/exhaust/high flow cats etc.....but more BHP? SIGN ME UP Couldn't give a monkeys about BHP. It's just a number. Sign me up for a nice fat curve! Oh yes! +1 - thats what its all about Quote Link to comment Share on other sites More sharing options...
R800NER Posted April 20, 2009 Share Posted April 20, 2009 I am still young and impressed with numbers Curves come with age Quote Link to comment Share on other sites More sharing options...
sl114 Posted April 20, 2009 Share Posted April 20, 2009 You do realise the swarm of people that will be wanting the service if remaps on the ECU work....Many people hear are happy to settle with just the noise of the intake/exhaust/high flow cats etc.....but more BHP? SIGN ME UP Couldn't give a monkeys about BHP. It's just a number. Sign me up for a nice fat curve! Oh yes! +1 - thats what its all about TORQUE!!!!!!! Quote Link to comment Share on other sites More sharing options...
R800NER Posted April 20, 2009 Share Posted April 20, 2009 Ok, so how much torque would my GT4 currently put out? Just so I can show an interest Quote Link to comment Share on other sites More sharing options...
Adam@Z1auto.com Posted April 20, 2009 Share Posted April 20, 2009 the ecu does not cancel out such mods - however, every car can, and often will react differently to similar mods. Some setups provide more gains than others, and some cars will show more gains than others when outfitted with the same mods. Is there a point of diminishing returns? Absolutely- and this is where a proper ecu retune can really shine The same software is used on all the ecu's from Japan to the US and worldwide. There may be minor differences in timing and fuel maps based on different fuels, and I also believe the immobilizer features differ slightly from country to country Quote Link to comment Share on other sites More sharing options...
IanS16 Posted April 20, 2009 Share Posted April 20, 2009 Adam, is your surname Savage? http://dsc.discovery.com/fansites/mythb ... _main.html for those who dont watch it Quote Link to comment Share on other sites More sharing options...
matth76 Posted April 20, 2009 Author Share Posted April 20, 2009 Martin, you're not visiting a certain somewhere in the south east to have something fitted to your ecu are you? I thought it was someone else on here being the guinea pig. If you are having done what I think you are (I may be totally wrong) I'd be very interested to know how it goes too. What are your current mods (exhaust and CAI)? Quote Link to comment Share on other sites More sharing options...
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