Lethal Performance is proud to now offer a 6.50" lower pulley ring for those customers looking to lower boost on their high output supercharger kits.
This product comes into play for those running the 3.4L Whipple that want to run less boost than what the kit comes with directly from the factory. The 3.4L Whipple with the supplied 3.5" upper creates about 25lbs of boost. To lower boost you can use a larger upper such as a 4.00" which will lower boost to about 21 lbs however running a 4.00" upper requires modification to the underside of the hood for proper clearance. This 6.5" lower pulley ring will work with your Metco lower pulley system and lower boost about 2.5 lbs without modification to the hood..
The 6.50" lower rings are in stock and offered with same day shipping for $125.00 for the ring itself or as a complete kit at a reduced rate for our 3.4L Whipple customers...
Please give us a call to order while we update the website. Thanks, Jared
This product comes into play for those running the 3.4L Whipple that want to run less boost than what the kit comes with directly from the factory. The 3.4L Whipple with the supplied 3.5" upper creates about 25lbs of boost. To lower boost you can use a larger upper such as a 4.00" which will lower boost to about 21 lbs however running a 4.00" upper requires modification to the underside of the hood for proper clearance. This 6.5" lower pulley ring will work with your Metco lower pulley system and lower boost about 2.5 lbs without modification to the hood..
The 6.50" lower rings are in stock and offered with same day shipping for $125.00 for the ring itself or as a complete kit at a reduced rate for our 3.4L Whipple customers...
Please give us a call to order while we update the website. Thanks, Jared
Last edited:
