Our replacement for the factory tunnel seal, molded in house from Polyurethane instead of rubber. Please confirm application before purchase, this part is non refundable. This part works with factory shifters, it does not work with legacy 5% or 20% shifters. We have modified the bases of our shifters, the new version of our shifters will work with this seal but the old version will not. If you have an older version you can send it in to be modified ($25.00) otherwise it will not work. Please watch this video for more details. I am happy to answer anything I can, please send an email if you have any questions before ordering. This part is not refundable and only has a one year warranty, warranty is void if part is modified. There will be too much strain on the seal if used with our legacy shifters, this is why the shifter base requires machining to accommodate this part. We are producing these slowly, they may not ship as quickly as normal. Orders will ship in the order they are received, if you order other parts and want them shipped quicker separately let me know via email: INFO@TMODCUSTOMS.COM