Finally getting the exhaust done. It's a 4" round down pipe to 5" oval to a 5" round inlet/4" round out muffler.
And as usual we are doing it all at www.twinsturbo.com.

 

holy cow...that will be really quiet. AND in LA>???? Hope ur gonna weld 4 cats after that, or register the car as a race car.

 

haha, I love it! Do you think there are real gains? You're making the diesel guys look bad.

 

looks good

 

We chose this size because of the massive turbo(83mm) and fitment.
It tucks in higher than 4" round and it obviously flows.
You should have seen how long it took me to find a muffler!
Oh and to make it even better the wastegate dumps to atmosphere! But I doubt I'll even here it.

 

LOL...nice, you really need to make a video of this when the exhaust is completed. One at idle and the other WOT pull.

 

Looks awesome!

 

Looks good...

 

Daym Jon, I'll be down there in March and hope to see your car then...

 

Damn, that makes my FULL 4" (Downpipe to muffler tip) look small. Mine is loud as ****, yours will prolly make peoples ears bleed!!! haha

 

I mean that's not THAT big... like a GT40. I think most people don't go 4 inches just because of the cost and clearance issues.

 

he may be talking about the turbine wheel ...if thats the case then its freaking MAHOOOSIVE!

 

^ you got it!

 

Where did u buy the oval piping?
I have to go 5" to hold the back pressure down..

 

Thats a hall way, not an exhaust system

 

HAHAHA! it is even more over whelming in person. The guys at twins turbo got it for me. I'm not sure where they got it from. you can hit them up though.

www.twinsturbo.com

 

http://www.spintechmufflers.com/spin...ntechindex.asp

 

Nice thanx...

 

I can't imagine much of a performance gain going to a 5 inch from a 4 inch.

 

I`m doing it because I will run a smal housing hot side..

Only 0.91 on a GT42R, because I will run it at Time attack here in norway...