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: Sikky headers and JoeZ exhaust DwaZlote 12-17-2010, 08:41 PM Hi, I want to install in my ISF JoeZ exhaust and Sikky Headers. My question is: if I install one of this two first i should start of exhaust or headers? Is it any diffrence? It have any influance on performance? And second thing is... What about performance after install this parts? How about time 0-60, vmax etc. Thanks evil teo 12-18-2010, 12:59 AM i say go do the headers first. exhaust is pretty easy to do. also to let u hear the headers without the exhaust and see if u prefer that or with the joe z exhaust. DwaZlote 12-19-2010, 04:19 PM And what about performance? Do You know something? Gymkata 12-19-2010, 09:37 PM The headers will give you more performance gain for your money, but will not change the exhaust sound too much. The JoeZ exhaust will make the exhaust noticeably louder/better, and will bring you a performance gain, but not as much as the headers. Joe Z 12-24-2010, 09:49 PM The headers will give you more performance gain for your money, but will not change the exhaust sound too much. The JoeZ exhaust will make the exhaust noticeably louder/better, and will bring you a performance gain, but not as much as the headers. Sounds about right...... ;) The headers alone go for $1,295 and will give you an approx gain of 25 rwhp http://www.lexusfforum.com/forums/images/icons/icon14.gif http://www.lexusfforum.com/forums/images/icons/icon14.gif ~ Average install labor is $500-$600 The exhaust system goes for $1,599 and will give you an approx gain of 20 rwhp.. http://www.lexusfforum.com/forums/images/icons/icon14.gif http://www.lexusfforum.com/forums/images/icons/icon14.gif (more material used to make an exhaust) ~ Average install labor is $100-$150 Combine the two bolt on systems and you are in a very impressive 40-45 rwhp approx. max gains.. These are just some ball park numbers based on various dyno tests using a Dynojet Dyno.. Happy Holidays to All!!! Joe Z :) GrandPap 01-04-2011, 12:31 AM Happy Holidays to All!!! Joe Z :) Forgive me if this has been discussed elsewhere (I did search). Joe - any differences for the intake/exhaust 2010 vs 2011 IS-F? The l-tunedparts website does not list 2011 as a choice. Thanks! Joe Z 01-08-2011, 04:40 PM Forgive me if this has been discussed elsewhere (I did search). Joe - any differences for the intake/exhaust 2010 vs 2011 IS-F? The l-tunedparts website does not list 2011 as a choice. Thanks! No there is not... :D Both products work perfectly with the 2011 IS-F. They just haven't updated their site to reflect 2011 (yet). Best Regards, Joe Z | ||