i want to keep stock exhaust on for quite reasons....but i also want good performance....would benifit me to disconnect my exhaust before the cat for track days and such? i would have 2 tunes for stock then track-exhaust.

what are things that could go bad....or what do i need to watch for....i might just get a small tube just the help direct the exhaust downwards to prevent buring anything underneth....unless you dont think that is an issue.


thnx for the help.

 

ENGLISH:1
LANCERGUY :0

NOT SURE BUT I THINK IF U DISCONNECT AT DOWN PIPE U WILL GET A CEL
IM A NOOB PROBLY WRONG THOUGH

 

lol, just get a high flowing exhaust with cat,have to sacrfice something for power.

 

yeah i no wonder my GPA is 1.9....hahahah........but cell ist a problem is it? just a lite...and i have an OBDII scaner to erase codes if need be...

 

It's ironic how a guy who types in "all caps" and uses "U" instead of "you" is slamming a guy for his english.

Serious answer: While you could probably do that, many tracks have noise restrictions and I imagine you will be kicked out pretty quick. Honestly though, removing the stock exhaust is a pain in the ***, you are better off just replacing it with a stealth or quiet model.

Unless this is drag racing, then the noise issue doesn't apply.

EDIT: One of the shops here makes a downpipe with a cutout, you may want to look in to that.

 

You can run an open downpipe, lol...why you want to keep the stock exhaust and have 2 tunes is an odd choice. What do you mean by track exhaust? If you have an open downpipe there is no exhaust.

 

well that would be a track like exhaust.....just dumping off the DP.....just somthing i was thinking about to save some money since im not going to track to often at this point....but mantain a quiet DD just by hooking up the DP to the cat...

and run 2 tunes.....a higher boost, more fuel, less timing tune for the track, then have a stock boost, stock settings for DD....i have wideband O2 and OPENECU and fairly good knowledge of tuning to do this...

 

CEL not CELL actually it service engine soon isnt it?
yeah my nissan b4 this ran like **** when the light came on....i wasnt to sure about evos though

just givin U a hard time man good luck
once again only a noob but couldnt u just unbolt at the downpipe and slide it over a little bit and use only one bolt, instead of takin off the entire exhaust system? it work on my last car.

 

how bout you just get a test pipe and cat back and if noise is a big deal then instead of just disconnecting it after the downpipe, why not put a test pipe and cat back on for at the track?

 

thats what im going to...just disconnect the DP from the cat and push it off to the side and use one bolt to hold it in place.......ive been up since 4am.....tired

if i decide i want to contuine doing tracks days and dont care about noise then ill go TBE....but till then i want to try it out......will it work??

 

but also, i believe vishnu makes a decently quiet exhaust?

 

yeah it will work...just be careful....youll only get so many uses out of the stock bolt...they will strip easy...just bolt and unbolt slowly

 

How about buying a 3" downpipe, test pipe, and then an electric cut-out, and have an exhaust shop mate it up to the stock exhaust?

Then, you'll have pretty much stealth exhaust for daily driving, then flip a switch to open the cut-out and have an open exhaust. Best of both worlds.

 

go electrict cut out

 

what are some things i need to look for when dumping exhuast under the car? will heat be a factor? is ther anything to damage in vacinity wher i would be dumping?