Wisco Speed and Performance

Directions Website Contact the business

Wisco Speed and Performance WSP specializes in GM performance, repair, aftermarket parts sales, custom wheel/tire packages, etc.

🚗💨 FALL DYNO DAY AT WISCO SPEED & PERFORMANCE! 🏎️🔥Ready to see what your build is actually pushing? Put your number on t...
10/08/2026

🚗💨 FALL DYNO DAY AT WISCO SPEED & PERFORMANCE! 🏎️🔥

Ready to see what your build is actually pushing? Put your number on the board this Saturday, October 10th at Wisco Speed & Performance!

Whether you’re strapping down to test your horsepower or just coming out to watch some awesome cars make pull after pull, this event is OPEN TO THE PUBLIC! Bring your friends, family, and fellow gearheads for a day of horsepower.

📅 When: Saturday, October 10th
📍 Where: 177 N Grant St, Rosendale, WI 54974
📞 Contact: (920) 579-0605
🌐 Website: wisco-speed.com
🔗 RSVP & Full Details: https://www.facebook.com/share/1U93GdFC4a/

Did you know? Wisco Speed & Performance is now offering general maintenance services for all makes and models. Stop by the shop and say hello!

This was a LOUD ONE! 🔊This 2021 Chevrolet Camaro ZL1 1LE rolled into Wisco Speed & Performance for a Post-Purchase Inspe...
10/06/2026

This was a LOUD ONE! 🔊

This 2021 Chevrolet Camaro ZL1 1LE rolled into Wisco Speed & Performance for a Post-Purchase Inspection. While we always prefer doing a Pre-Purchase Inspection before the paper is signed, this checkup caught a Bank 1 misfire right out of the gate—giving us the perfect starting point to get it fixed up and dialed in.

Here is everything we tackled before handing the keys back last week:
- Misfire Diagnosis & Fix: Pinpointed and resolved the Bank 1 misfire uncovered during inspection.
- Plug Wire Replacement: Installed fresh, high-temp wires to handle that supercharged LT4 heat.
- Corsa Valved Catback Exhaust System: Giving it the ear-splitting, aggressive rumble a ZL1 1LE deserves.
- P3 Gauge Installation: Clean, OEM-style integration for real-time digital monitoring right from the vent.
- Precision Alignment: Dialed in aggressive track geometry using the car's existing aftermarket suspension components.
- Full Custom Tune: Calibrated to tie all the new mods together for maximum power, crisp throttle response, and bulletproof reliability.

It left the shop last week firing on all 8 cylinders and sounding louder and meaner than ever! 🏁

Bigger crew, fresh site, zero slowdowns. Wisco Speed is hitting the gas.We’ve added Derek Schroeder, Operations Manager,...
09/29/2026

Bigger crew, fresh site, zero slowdowns. Wisco Speed is hitting the gas.

We’ve added Derek Schroeder, Operations Manager, and Ethan Heiling, Technician, to the team—two go-getters ready to increase efficiency, turn wrenches, and help get your build done right the first time.

Plus, our new digital hub is officially live:
🔥 wisco-speed.com

Hit the site to check out our full service lineup.

We've been consistently growing the vehicles in our track support fleet, and open to add more partners for the 2026 seas...
12/14/2025

We've been consistently growing the vehicles in our track support fleet, and open to add more partners for the 2026 season and beyond. Whether you're at the track every weekend or just for special occasions, we can help you make sure your hotrod is ready for its next track day!

We don't just do aftermarket upgrades, we'll service your performance vehicles and hotrods too! Although we thrive in up...
12/07/2025

We don't just do aftermarket upgrades, we'll service your performance vehicles and hotrods too! Although we thrive in upgrades, service and maintenance is another big part of our business.
We specialize in late model GM, but also work on classic cars, modern performance vehicles, and exotics.
Anything from fluid changes to transmission / differential replacements, fuel systems and electronics along with all other general repair and maintenance we've got you covered. Not only do we offer GM or OEM replacement parts but in many cases we can also upgrade to a higher quality non-factory replacement part for very similar price points to give the reassurance that the parts we installed will perform as well or better than the originals did.
Let us know how we can help!

Check out one of the recent C7 Z06 Corvettes that got our Stage 3 E (flex fuel) package.This combo made a solid 760whp &...
12/03/2025

Check out one of the recent C7 Z06 Corvettes that got our Stage 3 E (flex fuel) package.
This combo made a solid 760whp & 700tq and produced some impressive deep 5 second 60-130 times when all said and done. Here are the upgrades included in this WSP package.

Stage 3E Package
-LT4 Ported Blower w/ Upper and Lower Pulleys
-PD Blower Cam
-Trunnion Upgrade
-Cold Air Intake
-Catch Can
-P3 Gauge
-Flex Fuel Sensor & Tune

Other optional upgrades:
-Johnson Lifters
-Manton Pushrods
-Nick Williams 103mm Throttle Body
-Monster Triple Clutch
-Exhaust Upgrades

Please reach out with any questions on our packages or pricing.

For anybody on the fence on buying or thinking about a new set of Weld or Forgestar brand wheels we’re offering a 10-20%...
11/06/2025

For anybody on the fence on buying or thinking about a new set of Weld or Forgestar brand wheels we’re offering a 10-20% discount until December 1st on select wheels. This offer includes all in stock wheels so make sure to get on this before supplies run thin! Throwback pic to this killer C6 ZR1 with a nice set of Forgestar F14 Beadlocks in a custom finish.

This customer came to us with a pump gas 580ci Big Block Ford in his Foxbody Mustang with a Holley Sniper EFI setup on i...
11/05/2025

This customer came to us with a pump gas 580ci Big Block Ford in his Foxbody Mustang with a Holley Sniper EFI setup on it looking to get the tune worked out. We were able to get our base tune in it and moved on to getting the combination more dialed in for peak potential. Holley does a good job with their start up/box calibrations to get a vehicle running and driving, but there's always room for improvements to be made and performance left on the table for each setup.
To work thru these and get them dialed in certainly takes time and it may not be considered cheap, but more often than not, the gains are worth the expense not only in power but in idle quality and drivability as well! This is something you'll definitely feel in the seat of your pants along with performance rewards at the track.

This beautiful 1965 F250 came in awhile back for some finishing touches and Sniper EFI tune, as it was recently restored...
11/02/2025

This beautiful 1965 F250 came in awhile back for some finishing touches and Sniper EFI tune, as it was recently restored and fresh 347 Blueprint stroker installed. Doesn't take much for a classic like this to get some looks, but when it's looking, sounding, and running top notch, you'd be foolish not to turn your head!

Address

177 N Grant Street
Rosendale, WI
54974

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Website

Alerts

Be the first to know and let us send you an email when Wisco Speed and Performance posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Wisco Speed and Performance:

Shortcuts

Share

Category