Building a Big Cubic inch LS1 or 427.  Do you need bigger headers.  These should help. These are the biggest LS1 Headers on the market. These LS1 headers are NOT coated but they are a beautiful set of headers.

Fits: 1998-2002 Camaro/Firebird LS1

You want the best long tube header? The longest long tube header on the market. The only equal length header. No clearance issues. The highest flowing header.

1 3/4" Equal Length Primaries
3" High Velocity Merge Collectors with turbulence spike
304 Stainless Steel
Easy Installation
No Clearance Issues

Choose your style:

Race Style-No Air/EGR Fittings

All headers have O2 bungs.

Why High Velocity Merge Collectors?

The construction of a merge collector is such that the change in area at the primary tube to collector transition point is minimized. This gradual transition allows the exhaust gas to maintain as much velocity as possible. Maintaining gas velocity is the key to allowing the exhaust system to reach its efficiency potential.
Merge collectors significantly improve the efficiency of the exhaust system. We recommend dyno testing to arrive at the final camshaft combination when using this style of collector. If you need that last little edge and are willing to do the testing required to realize the potential gains, merge collectors are one of the most economical ways to gain significant amounts of torque and horsepower in the entire LS1 engine combination.

These are 1 7/8" LS1 Long tube headers for your 98-02 Camaro, SS, Z28, RS, Firebird, Trans Am, Ram Air or Formula. Shipping is not included and will run about $40 in the US.