Cometic GM LS1 SB 4.160 inch Bore .056 inch MLS-5 Headgasket

I’ve been buying Hotchkiss parts for years so I knew these would be great. Great buy from a great company with fast shipping.

So far, this is the best purchase I have made for my c5 so far. Brian was very helpful with spec’ing out a set when I told him what I wanted to do with the car. Coming from lowering bolts these are 10x better in handling.

Great product for my car and a great upgrade. Brian steered me in the right direction when unsure what type of end-link to order. Shipping was fast also. I’m very happy with the service.

All I can say is that these are a great replacement for the overpriced crappy toe arms. Brian had them in stock and shipped them quickly. Very happy with the product and service.

Radiator bolted to my c5 with no problems. Helped fix my overheating issue. Brian answered my questions about the product on a Sunday and was prompt. I’m very happy with the service and the product.

Great addition to the C5

Recommended.

Made a major improvement in ride quality compared to being lowered on stock springs.

Great customer service, quick shipping. Will be ordering from again.

Brian from FI communicated well and got me my ECP radiator smoothly. Product is flawless.

Great cosmetic addition to the C5!!!

Brian was great to deal with. Would send me updates on the seats and when they would show up. A great person to deal with. I would order from him again.

Great product and great service. Have been impressed with the silver coil over setup.

Great company fantastic advice I didn’t want a clutch that was heavy on the pedal or snatchy to engage for street driving this clutch was fantastic pedal feel not much over a stock Z06 clutch slightly more aggressive engagement but still on running in stage but perfect street manners very happy customer

Brian was able to help one of our customers create a custom spring rate for the Silvers coilovers that we thought was not possible. The customer was beyond excited and when they arrived, the units were extremely easy to install. Great experience overall.