MrHer0

Hey guys, I have had my Turbonetics Stage 1 for about 2.5 months now. I have the TRD Exhaust.

I am interested in a new exhaust and wanted to get peoples opinions and/or experiences with different exhausts with this specific turbo system.

Any thoughts would be appreciated.

drew

yamaha16bw

I just switched from a 2.5 inch midpipe and TRD axel back to the magen catback. I love it,

318_tC

Custom 3 Inch

PlayinWithFire

haha you will be happy with anything other than the TRD exhaust...

honestly... any 2.5" cat back exhaust will do you good. If you have a good shop that could fabricate you a 3" one that would be ideal... but like the ZPI, Dezod, or Creative Compacts exhaust systems would work great too.

redwar1441

3 inch is way to big unless your nearing the 400hp mark

rhythmnsmoke

^^That's why he has a custom 3 inch..

redwar1441

yeah i know 318 tc isputting down serious power i said that in regards to playinwithfire's comment.


3 inch is just too big unless your making huge power. The large diameter of the pipe causes exhaust gasses to expand in the pipe, cool, and slow down causing a "wall" of slow moving gasses causing backpressure.

Schuller

I have the ZPI spipe , Megan midpipe, and Greddy SP2 exhaust. It really smooths out and increases the power delivery. The exhaust sound level is in perfect balance with the rest of the system.

rhythmnsmoke

Yes...I concur.

paul_dezod

Correct. Exhaust diameter should be determined by power the vehicle is making. Cars making 500 to the wheels should consider a minimum of 2.5", while cars under this would be sufficient with 2.5".

Too small of diameter creates air reversion at certain gas speeds, while slower gas speeds create a wall like redwar answered. It is a tricky balance.

318_tC

=)

mospeedtc

Tsudo N1 here. I like it

PlayinWithFire

hehe i stand corrected... a few times...

question... would it be bad to run a 3" if you plan on bumping up the power? Like I know I am building the block and eventually turning up the boost... but if i stay around 350ish should i be straight with what I got (2.5" all the way back) or should i bump it up to 3" for a little more power.

I already am falling victim to boost spike from the lack of back pressure..

redwar1441

boost spike due to the lack of backpressure? that doesnt make any sense to me. Stay with the 2.5, no need to go 3 inch until you hit 500hp.

PlayinWithFire

like the lack of back pressure allows for more air to flow freely causing a raise in boost in comparison to what the kit is set up to run out of the box.

redwar1441

if you put a 3 inch on it you will lose power.

PlayinWithFire

thanks for the help man... now i just need a high flow cat so i can be more legal lol

rhythmnsmoke

^^Legal.....What's that?

blitzblue1032

^^^

redwar1441

how come noone has just moved the 02 sensor to behind the second cat and whammo! pass. did it on my stepfathers tiburon. thats my plan when i finally go turbo.