[Paul Huryk]

Originally Posted by BigAls87Z28

SLP had nothing to do with GM to start "thinking" about performance.

To a point they did - along with other companies like Lingenfelter and TPIS.

Don't forget that SLP had the first emissions legal bolt-on performance parts for the TPI motors back when aftermarket companies were turning their backs on EFI and dealing with emissions standards. Also remember that SLP parts were sold through and installed by GM dealerships - so they were using them to add performance to new and recently purchased GM cars (and trucks). A lot of engineering and testing went into the products - something GM didn't want to do; so the partnership worked a long time.

I'm not saying their products' quality went down over time, just that their impact cannot be ignored in the performance sector. Easily in the top 10 companies for late 80's and 90's performance car parts, not even counting the Firehawks...