zmike

Is anybody still running these? I have been for many years now and I am thinking about a switching to LT's. How do they sound with GMMG or LMII catbacks?

RobsWS6

I still have mine. Also thought about going long tubes since I don't have to deal with emissions down here. But as of now, they have been on for over 12 years now.

DAVE00

I didn't even know SLP made headers with 1 3/4 primaries? All of they're headers are 1 5/8" primaries I thought.

Are you talking about the primary size?

zmike

From SLP parts description:
These 4-into-1 headers are available for the 1995-1997 V8 Camaro and Firebird. They are guaranteed to produce more torque and horsepower than any other header with the same tube size and application currently available, up to 20 additional horsepower depending on application. Available in 1-3/4" O.D. primary tube size; we suggest using 1-3/4" tube size for 350 C.I.D. engines. The headers are designed to work with factory A.I.R. systems and catalysts, and may require an SLP installation kit to complete the installation.

From Carb filing:
http://arb.ca.gov/msprog/aftermkt/de...eo/D-187-7.pdf

Injuneer

The problem with the "dual-cat" headers in general is the agonizing bends on the driver's side to keep the cat in the stock position. Doesn't do much to help flow, and seems to radiate heat to the extent under hood plastic parts start to melt. A buddy of mine had the AS&M dual-cat headers, and even with the entire firewall and most of the fender liners covered with heat reflecting sheeting, stuff like the dipstick handles were melting. He pulled them and dumped them quickly.

zmike

Way back when I bought them I had Paul Berry coat them with the 2100* coating as extra protection against heat. After a few years, even with the coating, the heat melted one of my heater hoses. I am considering dumping them for some LT's but I remember how much of a pain they were to install.

RobsWS6

Arizona headers were terrible. The SLP's weren't that bad. I had mine coated from a place in Florida and they've held up very well. They never looked that good, coating wise because I went for their best coating for heat, kind of made them look rusted. Here are a couple of pics. One in the car and one when the engine was getting replaced under warranty.