Hey ya'll
Just like the title says. What are you guys that are running superchargers using for headers, and an exhaust system.

I'm looking for a good 3" "cat-back" system, with a single 3" exhaust.

What can you guys recommend here? What's the best option here?

Mike

***bump***

***bump***
Stock" headers" stock back to mufflers. Po had some magnaflows welded on with cowboy tips straight out under the bumper. definitely not ideal.

Stock" headers" stock back to mufflers. Po had some magnaflows welded on with cowboy tips straight out under the bumper. definitely not ideal.

I think so far I've decided on a set of Doug Thorley headers. It's one of the few I've been able to find that are CARB legal. It sucks living in MA. At some point I'd like to do a y-pipe, and a cat back...

M

I had a 06 silverado with a t70 turbo front mount and 4" exhaust it started out with a flowmaster dual 2.5 but the chambered mufflers were eating 50 hp a single 3" is only good for about 350hp, dual 2.5 with staight through muffler is what you need I perfer the single 4" though much cleaner and lighter!

I had a 06 silverado with a t70 turbo front mount and 4" exhaust it started out with a flowmaster dual 2.5 but the chambered mufflers were eating 50 hp a single 3" is only good for about 350hp, dual 2.5 with staight through muffler is what you need I perfer the single 4" though much cleaner and lighter!

4" exhaust is WAY too big. I'll loose all kinds of torque on the low end...

M

I am just letting you know single 3" is not big enough use the calculator.

Exhaust Size Calculator (http://www.mk5cortinaestate.co.uk/calculator5.php)

I am just letting you know single 3" is not big enough use the calculator.

Exhaust Size Calculator (http://www.mk5cortinaestate.co.uk/calculator5.php)

Cool. I just noticed this. Thanks man. Points awarded.

A single pipe, for 400bhp, calculates to 3.12"

Mike

This calc says I need a 3.58" for a Supercharged 5.7. So the stock exhuast is limiting me? No wonder they run so rich.