I heard it is normal for smoke to come out of the hood when a up pipe is installed? I usually have a bit coming out at frequent stops. I heard it is due to the residue inside the up pipe.

 

it could be... or u could have a leak... if its a new car then i had the same issue, new motor smell... yumm...... if it doesn't go away within.... the next week or so i'd check it out

 

yeah i have a 05 rex

 

if u just got it then thats the norm... but yea... leave it be for a week or so and if it doesn't goway then check it out

 

what's the worst it could happen if there is a leak?

 

Did you use wd-40 or something to spray on the bolts during install? Thats the only smoke I had, due to it burning off...It only lasted for about an hour or two. I dont know what else could be smoking. How long has it been like that?

You would probably know if it were a leak, supposedly a leaky uppipe is really loud.

 

CORRECT! if you used WD-40 or any liquid wrench..thats the reason why smoke is coming out when you first start it up.

if smoke is STILL coming out after a couple days then you got a problem

 

Yeah i'll be taking the car back on saturday to get it checked out to see if there is any leaks. Also another thing is when i'm at 3 rpm and decrease to 2 in 1st, 2nd or 3rd i hear some kind of rattle sound. Is this normal????

 

Yeah i'll be taking the car back on saturday to get it checked out to see if there is any leaks. Also another thing is when i'm at 3 rpm and decrease to 2 rpm in 1st, 2nd or 3rd i hear some kind of rattle sound. Is this normal????

 

Here's the mods that i have:

HKS bov
Apexi catback
helix flex up pipe

 

It's the the WD40. . . it will go away. . I had the same problem. . .

- mark

 

Rattle is most likely a loose heat shield..

 

thanx ya'll for all of your input, i'm a noobie in this forum so i appreciate it, makes me feel better that my car is ok.