4.8 2,200+ reviews

Car Remap Calculator - Find Your Vehicle

Make & Model

Filter By

Brand

Product Type

Performance Tuning

Showing results for

Porsche 911 4S - 355HP - 997 Mk1 (2004 - 2009)

Not your car? Try the filters above.
Placeholder vehicle image

+20BHP

355BHPBefore 375BHPAfter

Power

+20NM

400NMBefore 420NMAfter

Torque

SALE £717.00 was £797.00

£50 OFF TUNING ENDS THIS MONTH!
GET MY PRICE

Shop

Select your vehicle above to display products

Porsche 911 4S - 355HP - 997 Mk1 (2004 - 2009)

Home Tuning Tools

Tune your vehicle from home, with our range of tools!

From £397.00 View Products
Sale!

Armytrix Down-Pipes for Porsche 911 4S – 355HP – 997 Mk1 (2004 – 2009)

(Armytrix Down-Pipes)

Price range: £1,275.54 through £1,825.39 Add to basket!
Sale!

Armytrix Muffler with Tips for Porsche 911 4S – 355HP – 997 Mk1 (2004 – 2009)

(Armytrix Muffler with Tips)

Price range: £3,892.74 through £4,222.64 Add to basket!

Eibach Electronic Suspension Module for Porsche 911 4S – 355HP – 997 Mk1 (2004 – 2009)

Eibach Electronic Suspension Module!

£495.07 Add to basket!

Eibach Performance Springs for Porsche 911 4S – 355HP – 997 Mk1 (2004 – 2009)

Eibach Performance Springs!

£463.61 Add to basket!
Sale!

Milltek Rear Silencer for Porsche 911 4S – 355HP

Milltek Rear Silencer !

Original price was: £1,666.21.Current price is: £1,499.59. Add to basket!
Sale!

Auto Gearbox Tuner for Porsche 911 997 Mk1 (2004 – 2009) 4S – 355HP

Faster Gear Shifts For Automatic Gearboxes

Original price was: £825.00.Current price is: £742.50. Add to basket!
The JF Automotive team
Meet the team

The team behind every job

Technicians, calibrators and the front desk, all in Maidstone. No call centre and no subcontracting - the person who books you in is the person you can ask about the job.

Meet the team →
Newsletter

Offers on parts and tuning, first

A short email now and then: new vehicle support, parts deals, open days. Nothing daily.