just curious if i'll really see around a 40 horsepower improovement with my headers and catback once they're on the car. and that is gonna be a SOTP difference, right?

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'88 WS6 Formula

In the mail :
SLP 1 5/8" headers, SLP 3" Power Flo catback, Catco 3" cat

Up next :
New aero-spoiler from GT Auto

 

You may have a 25 to 30 hp increase, but you will notice the differences.

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1987 Black Camaro IROC-Z (original owner) Replaced LB9 @ 86100 miles.
New 350 Crate engine
Balanced & blueprinted
WP 67cc Heads 9.6:1 C.R.
Cam: 450lift,216dur@50,110ls
TPI Induction(from 305)
22# Fuel Injectors
SLP Intake runners
New Computer chip
K&N filters & Air Foil ,
Hothkis STB
SLP 1 3/4 Headers
CATCO 3" Catalytic conv.
SLP 3" Cat Back Exhaust
700R4 Auto
SLP Torque Converter (2400 stall)
Limited Slip rear
245/45/ZR-17 Tires
17x8.5 ATI 5 Razze Wheels
EST. 340HP
380#/ft of Torque
NEW TOY!

 

You will get much better throttle repsonse also. I am pretty sure before the headers I had a tough time peeling out, but now i can do it pretty good.

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89 camaro 305 tbi, flomaster 3 chamber cat back, gutted cat, Edlebrock TES Headers, Exhaust cutout, Edlebrock open element, and a 160 degree T-stat. 2 kicker comp 12"'s, polk for the rest. Phoenix gold xs2300 to subs, kicker impulse 404XI to 4 speakers, pioneer DEH- P7000R head unit, and finally a 12 disc changer. Full leather interior from http://www.MrMikes.com (its nice)