One Bad Z

iTrader: (1)

I've been told that on a stock exhuast car it will make 8lbs of boost and with headers & good flowing exhaust its about 5lbs. My car right now has FLP ceramic coated long tubes and an open 3" y-pipe (its a hooker y-pipe with dual cutouts welded in). I have a ceramic coated flp y-pipe, 2.5" piping with 3.5" outlet, with highflow cats. I'd like to get the cutouts off the car but that y-pipe will pretty much look like crap & wont flow any better with all the welds than it does right now. Was thinking about using the flp longtubes & flp y-pipe, take the cats off & dump a bullet muffler. I wont do this if its going to choke my car any though. Review my mod list and give your $.02

:Some of the Mod List:
Engine
: FLP Ceramic Coated Long Tube Headers
: Custom 3" Y-Pipe (Open)
: Comp Cams 234 242 .598 .610 114lsa
: Texas Speed Ported LS6 Oil Pump
: ATI P-1SC Intercooled ProCharger
: EGR and AIR System Removed
: Racetronix Fuel Pump System
: MSD 8.5mm Spark Plug Wires
: Hypertech 160˚ Thermostat
: Throttle Body Bypass Mod
: SLP Fan Control Switch
: NGK TR-6 Spark Plugs
: Speed Density Tune
: Ported Throttle Body
: 42lb Fuel Injectors
: LS6 Intake
Transmission-Drivetrain
: TCI 10" Street Fighter 3000 Torque Converter
: Danny Miller 9" Rearend

venom ws7

iTrader: (13)

are you saying that the stock exhaust will be better than the LT and Y-pipe or what?
i think you should get LT and Y-pipe and throw cutout in the I-pipe.

im sure more guys will give an advic other than me.
Talk to Bob at EPP he will help you alot.

onefastss223

iTrader: (14)

Boost=Measure of Restriction. Just b/c you'll be seeing less boost with LT's/ORY, you'll see the same/well actually more air flow from the blower. Less Boost going from a Restricted exhaust to a Free flowing exhaust doesnt mean you're losing power or choking it up.

One Bad Z

iTrader: (1)

car already has the flp long tubes and a 3" open y-pipe. I took the catback off for a reason and its never going back on.

What i was asking is how much is the 2.5" going to rob power compared to the 3".

EPP

iTrader: (22)

A less restrictive exhaust system does lower boost, as does better flowing cylinder heads, performance camshafts, larger cubic inch engines, higher elevations, etc. When we place an order for an ATI ProCharger, all of these factors are taken into consideration to get the correct blower pulley sized for the head unit, to see the boost the customer desires. If you have all of the above items, and you want 12 psi of boost, we can get you 12 psi of boost.
Note: I don't recommend going over 8 psi unless you have forged rods and pistons.
Hopefully this helps. Bob