REDlgt05 Posted July 23, 2009 Share Posted July 23, 2009 I was told that the OEM 07 lgt uppipe doesnt have a cat...it that cheaper to buy than an aftermarket up pipe wile still giving the same gains in spool time?...and also whats the difference between an up pipe and a down pipe ? does anyone have a diagram showing both of them on the car? ...im still new ha Link to comment Share on other sites More sharing options...
REDlgt05 Posted July 23, 2009 Author Share Posted July 23, 2009 Also while im still here although i forgot on the last post...what are ppls sujestions on buying an up/down pipe what brand is the best? Link to comment Share on other sites More sharing options...
Darkness of Death Posted July 23, 2009 Share Posted July 23, 2009 up pipe is from your exhaust manifolds UP to the turbo and the downpipe is from the turbo DOWN to the catback exhaust. and yes, oem 07+ lgt is catless, you can get one of those or suggested is an up pipe with a flew section..such as a grimmspeed..i'm sure there are other brands but i forget them at this moment. downpipe is really up to you, if you are going with just a downpipe but stock exhaust, the cobb will bolt up without needing a flange adapter. most, if not all aftermarket downpipes are 3". and i believe the stock catback system is 2.5". the borla catback system is 2.5" as well Link to comment Share on other sites More sharing options...
REDlgt05 Posted July 23, 2009 Author Share Posted July 23, 2009 So what helps better with spool times? ....the up pipe Link to comment Share on other sites More sharing options...
Mega Users LieutenantDan Posted July 23, 2009 Mega Users Share Posted July 23, 2009 A freer flowing exhaust pipe PRE-turbo will increase spool time. Hence the catless uppipe. This topic has literally been covered trillions of times on the forum. Search is your friend. Link to comment Share on other sites More sharing options...
Mega Users LieutenantDan Posted July 23, 2009 Mega Users Share Posted July 23, 2009 This also doesn't belong in the tuning section. Perhaps the intake and exhaust section may be more appropriate. Link to comment Share on other sites More sharing options...
REDlgt05 Posted July 23, 2009 Author Share Posted July 23, 2009 Awesome, thank you both for ur answers and advice. Link to comment Share on other sites More sharing options...
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