Thoughts on Exhaust setup
Thread Starter
Racer
Joined: Jul 2014
Posts: 256
Likes: 3
From: Liberty Texas
Thoughts on Exhaust setup
Hi Guys, I purchased a 2008 C6 Corvette two months ago with only 7500 miles and bolts ons including D1SC procharger, AEM Meth kit, boost a pump...and two things in question here. It was unbeknownst to me what type of exhaust this car had until I finally got it on a lift the other day. To my best knowledge and also the mechanic confirms to also it looks like a 1 7/8 OBX Long tube headers with 3" catted x-pipe going into magnaflow axelbacks (not sure which models). I had ARH headers on my G8 and they were absolutely ridiculous but how is this setup....I know OBX aren't the best but would it be worth upgrading the headers or axelbacks or is what's on there now good? I'd like to spend money on adding to it if the exhaust improvement would be negligible. Btw, my car is in the shop right now getting a 4" pulley put on, rebuilt motor by Late Model Engines and they're speccing me a blower cam setup 
So this will be a totally different car!
So this will be a totally different car!
Pro
Joined: Nov 2011
Posts: 622
Likes: 17
From: Spring Texas
I wouldnt change anything if you like the way it sounds. Those headers are fine. 4" on a D1 will rip. Maybe do a 10% OD damper when the motor gets done. You running 8 ribs or a flip drive?
Using LME I assume you're a Houston guy? Any idea what kind of power it makes now? You should drop in the forced induction section and introduce yourself.
Using LME I assume you're a Houston guy? Any idea what kind of power it makes now? You should drop in the forced induction section and introduce yourself.
Safety Car
Joined: May 2011
Posts: 3,807
Likes: 508
From: Oshawa, Ontario
Hi Guys, I purchased a 2008 C6 Corvette two months ago with only 7500 miles and bolts ons including D1SC procharger, AEM Meth kit, boost a pump...and two things in question here. It was unbeknownst to me what type of exhaust this car had until I finally got it on a lift the other day. To my best knowledge and also the mechanic confirms to also it looks like a 1 7/8 OBX Long tube headers with 3" catted x-pipe going into magnaflow axelbacks (not sure which models). I had ARH headers on my G8 and they were absolutely ridiculous but how is this setup....I know OBX aren't the best but would it be worth upgrading the headers or axelbacks or is what's on there now good? I'd like to spend money on adding to it if the exhaust improvement would be negligible. Btw, my car is in the shop right now getting a 4" pulley put on, rebuilt motor by Late Model Engines and they're speccing me a blower cam setup So this will be a totally different car!
So this will be a totally different car!
Thread Starter
Racer
Joined: Jul 2014
Posts: 256
Likes: 3
From: Liberty Texas
I wouldnt change anything if you like the way it sounds. Those headers are fine. 4" on a D1 will rip. Maybe do a 10% OD damper when the motor gets done. You running 8 ribs or a flip drive?
Using LME I assume you're a Houston guy? Any idea what kind of power it makes now? You should drop in the forced induction section and introduce yourself.
Using LME I assume you're a Houston guy? Any idea what kind of power it makes now? You should drop in the forced induction section and introduce yourself.
Last edited by g8gt208scvette; Sep 25, 2014 at 02:51 PM.
Pro
Joined: Nov 2011
Posts: 622
Likes: 17
From: Spring Texas
Not too shabby.
A cam should really wake her up. Lots of procharged cars end up with a Dallas performance intake or homemade 4" inlet. The other biggie is switching brackets/flip drives if you encounter belt slip. I personally have a D1 w/4.25" pulley on A&A brackets and will be upgrading to a full 8 rib setup and the OD balancer in the next few weeks.
A cam should really wake her up. Lots of procharged cars end up with a Dallas performance intake or homemade 4" inlet. The other biggie is switching brackets/flip drives if you encounter belt slip. I personally have a D1 w/4.25" pulley on A&A brackets and will be upgrading to a full 8 rib setup and the OD balancer in the next few weeks.
Thread Starter
Racer
Joined: Jul 2014
Posts: 256
Likes: 3
From: Liberty Texas
Not too shabby.
A cam should really wake her up. Lots of procharged cars end up with a Dallas performance intake or homemade 4" inlet. The other biggie is switching brackets/flip drives if you encounter belt slip. I personally have a D1 w/4.25" pulley on A&A brackets and will be upgrading to a full 8 rib setup and the OD balancer in the next few weeks.
A cam should really wake her up. Lots of procharged cars end up with a Dallas performance intake or homemade 4" inlet. The other biggie is switching brackets/flip drives if you encounter belt slip. I personally have a D1 w/4.25" pulley on A&A brackets and will be upgrading to a full 8 rib setup and the OD balancer in the next few weeks.
